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Scientific & Educational >> Weather Abbreviations

Look through 2217 acronyms and abbreviations related to Weather:

• MIFG — Shallow Fog (METAR Code)
• NB — New Brunswick
• TRRN — Terrain
• ADQTLY — Adequately
• OPS — Operations
• LAN — Local Area Network
• J/KG — Joules per Kilogram
• M2/S2 — Meters squared per second squared
• BTWN — Between
• FIRAV — First Available
• DLTD — Deleted
• Z DR — Differential Reflectivity
• ABT — About
• ACCUM — Accumulate
• FTP — File Transfer Protocol
• PLS — Please
• MSG — Message
• LCLY — Locally
• DATANET — Hydrologic Data Network Analysis Software
• F SCALE — See Fujita Scale
• T.S. — Tropical Storm
• ASAP — As Soon As Possible (pronounced AY-sap)
• B- — Convective Inhibition
• D-MAWDS — Digital Marine Weather Dissemination System
• T. D. — Tropical Depression
• FAA/AWR — Federal Aviation Administration/Aviation Weather Research Division
• MS — Mississippi
• CONTS — Continues
• CHG — Change
• OBSCD — Obscured
• G-AIRMET — Graphical Airmet
• FEMA — Federal Emergency Management Agency
• RFP — Request For Proposal
• FAA/ARW — Federal Aviation Administration/Aviation Requirements - Weather Group
• SACSMA — Sacramento Soil Moisture Accounting Model
• VIP — Very Important Person
• FLRY — Flurry
• ACFT — Aircraft
• N-TFS — New Tactical Forecast System
• LABRDR — Labrador
• WAMPS — Weather Automated Mission Planning Software
• BACLIN — Baroclinic
• RAOBS — Radiosonde Observations
• TACMET-MOD — Tactical Meteorological Observing System Modification
• OBSCG — Obscuring
• RF — Radio Frequency
• FWD — Forward
• ATTN — Attention
• NBFR — Not Before
• DATACOL — The Software System that supports RFC gateway functions

• BLDU — Blowing Dust (METAR Code)
• MOA — Memorandum Of Agreement
• GUI — Graphical User Interface (goo-ey)
• EXTRAP — Extrapolate
• DABRK — Daybreak
• KOCTY — Smoke Over City
• NTSB — US National Transportation Safety Board
• UPS — United Parcel Service, Inc.
• PTNL — Potential
• SUFLY — Sufficiently
• AL — Alabama
• FYI — For Your Information
• NNNN — End of Message
• NLT — Not Later Than
• GRT — Great
• TNTV — Tentative
• ATA — Area Transportation Authority
• CA — California
• GPS — Global Positioning System (ex-NAVSTAR)
• FROPA — Frontal Passage
• BHND — Behind
• AAL — Above Aerodrome Level
• ICAO — International Civil Aviation Organization
• CONSHELF — Continental Shelf
• ASL — Above Sea Level
• DOD — United States Department of Defense
• AGL — Above Ground Level
• SYS — System
• FAA — Federal Aviation Administration
• FY — Fiscal Year
• ACK — Acknowledge (telecommunications; Cf. NAK)
• LVL — Level
• RQRD — Required
• TSTMS — Thunderstorms
• BLDG — Building
• MPH — Miles Per Hour
• PIXEL — Picture Element
• LYRS — Layers
• WWW — World Weather Watch
• LA — Louisiana
• AGC — Automatic Gain Control
• SUPSD — Supersede
• AK — Alaska
• S — South
• CONUS — Continental United States (48 Contiguous States and DC)
• GSA — U.S. General Services Administration
• MD — Maryland
• LYRD — Layered
• RVR — Runway Visual Range
• USAF — United States Air Force

• APR — April River Airport, April River, Papua New Guinea
• STD — Standard
• DMG — Damage
• WX — Weather
• IATA — International Air Transport Association
• WILCO — Will Comply
• INCLS — Includes
• ATC — Air traffic control
• KG — Kilogram
• CTGY — Category
• Y2K — Year 2000
• C — Center
• AFDK — After Dark
• KPA — kiloPascal (pressure above ambient (100 kPa = 1 atmosphere excess))
• DTG — Date-Time Group
• FAR — Federal Aviation Regulation
• VHF — Very High Frequency
• INFO — Information
• WAC — World Aeronautical Chart
• CFO — Communication Filing Officer
• CM — Centimeter
• PC — Personal computer (host)
• MSL — Mean Sea Level
• MIL — Military
• THRUT — Throughout
• LMT — Local Mean Time
• STGST — Strongest
• AR — Arkansas
• SWLY — Southwesterly
• SMRY — Summary
• DEC — December
• FTE — Full-Time Employee
• UTC — Coordinated Universal Time
• MI — Michigan
• CAVU — Ceiling And Visibility Unlimited
• OPMET — Operational Meteorological
• ALT — Altitude
• CT — Connecticut
• CNCLD — Canceled
• HTG — Heating
• UT — Utah
• HJ — Sunrise to sunset
• AAAS — American Association for the Advancement of Science
• CONT — Continue
• NY — New York
• GND — Ground
• MN — Minnesota
• VFR — Visual Flight Rule
• HZ — cycles per second (hertz)
• PWR — Power

• TN — Tennessee
• NM — Nautical Mile
• BC — British Columbia
• NSF — National Sanitation Foundation
• MO — Missouri
• SEQ — Sequence
• SMS — Synchronous Meteorological Satellite
• AMSL — Above Mean Sea Level
• RI — Rhode Island
• N — North
• ALSTG — Altimeter Setting
• PM — post meridian
• BLM — Bureau of Land Management of United States Department of the Interior
• PTLY — Partly
• CAPE — Convective Available Potential Energy
• KY — Kentucky
• CO — Colorado
• SQAL — Squall
• MIN — Minimum
• NOAA — National Oceanic and Atmospheric Administration (US)
• E — East
• PA — Pennsylvania
• RTE — Route
• NAB — Not Above
• NJ — New Jersey
• OH — Ohio
• LAT — Latitude
• SD — South Dakota
• OFC — Office
• SEC — Second
• OR — Oregon
• MA — Massachusetts
• NATL — National
• AMT — Amount
• RFI — Radio Frequency Interference
• GEN — General Motors
• CW — Continuous Wave
• WMO — World Meteorological Organization (ICSU)
• LTD — Limited
• FT — Feet
• REQSTD — Requested
• INTMD — Intermediate
• WV — West Virginia
• NE — Nebraska
• WI — Wisconsin
• VT — Vermont
• SNOINCRG — Snow increasing
• NOV — November
• ACTV — Active
• UFN — Until Further Notice

• NV — Nevada
• YR — Your
• ME — Maine
• COORD — Coordinate
• CFS — Cubic Feet per Second
• WIP — Work In Progress (process)
• BM — Benchmarking
• NEB — Nebraska
• NGT — Night
• IR — Infrared
• MAX — Maximum
• WEF — With Effect From
• NEG — NEGative
• HDRAIN — An Hourly Digital Rainfall Product of the WSR-88D
• GF — Ground Fog
• MOS — Model Output Statistics
• NC — No Change
• KW — Kilowatt (one thousand watts) (measurement)
• AZ — Arizona
• ADDS — Aviation Digital Data Service
• ACT — Active
• ASD — Aircraft Situation Display
• USGS — United States Geological Survey (DOI)
• SNR — Signal-to-Noise Ratio
• NESDIS — National Environmental Satellite, Data, and Information Service
• CONTD — Continued
• CLR — Clear
• EXER — Exercise
• PRODG — Producing
• POSLY — Positively
• DOH — Development and Operations Hydrologist
• R — Right
• VOL — Volume
• ETC — Et Cetera
• PRIN — Principal
• AVG — Average Voltage Gain
• DIST — Distance
• W — West
• BCH — Beach
• DBL — Double
• TELCON — Telephone Conversation
• NS — Nova Scotia
• JAN — January
• ETD — Estimated Time of Departure
• ACPT — Accept
• OPR — Operator
• ETA — Eta model
• OTLK — Outlook
• NAS — National Airspace System
• ANS — Answer

• XPCD — Expected
• CAT — Category (e.g. CAT-5 cable)
• WADL — West African Disturbance Line
• SIG — Signature
• LTR — Later
• UV — Ultraviolet (Light)
• PRF — Pulse Repetition Frequency
• SC — South Carolina
• CVR — Cover
• RH — Relative Humidity
• LTGCG — Lightning Cloud-to-Ground
• FD — Winds and Temperatures Aloft Forecasts
• MAY — May Department Stores Company
• TX — TEXAS
• PRIM — Primary
• ND — North Dakota
• FLT — Flight
• THKNS — Thickness
• BRK — Break
• AGRMT — Agreement
• PBL — Planetary Boundary Layer
• INCL — Include
• UPS — Uninterruptible Power Supply
• RFC — River Forecast Center
• WO — Without
• SW — South West
• FVRBL — Favorable
• OCT — October
• FIG — Figure
• CAT — Clear Air Turbulence
• Y — Yellow
• HR — Hour
• ADJ — Adjacent
• MT — Mountain
• GMDSS — Global Maritime Distress and Safety System (IMO)
• C — Celsius
• KS — Kansas
• MDFY — Modify
• INU — Inertial Navigation Unit
• SHSN — Snow Showers (METAR Code)
• NEGLY — Negatively
• NOTAM — Notice to Airmen
• CRS — Course
• R — Red
• RDA — Radar Data Acquisition
• ISA — International Standard Atmosphere
• PROD — Produce
• TSFRD — Transferred
• FCST — Forecast
• SMK — Smoke

• NH — New Hampshire
• LST — Local Standard Time
• CLD — Cloud
• RCV — Receive
• WY — Wyoming
• BL — Blowing (METAR descriptor)
• MID — Middle
• FIS — Flight Information Service
• CWT — Combat Weather Team
• FU — Smoke
• SH — Showers
• MCS — Mesoscale Convective System
• RCVD — Received
• OK — Oklahoma
• IL — Illinois
• ELEV — Elevator
• MT — Montana
• PSN — Position
• SPENES — Satellite precipitation estimate statement
• W — White
• NXT — Next
• COE — Creek Corps of Engineers
• SML — Small
• ARINC — Aeronautical Radio Incorporated
• POS — Positive
• ALQDS — All Quadrants
• BR — Mist
• MCW — Modulated Continuous Wave
• AUG — August
• PVA — Positive Vorticity Advection
• POD — Probability Of Detection
• UNAVBL — Unavailable
• HPC — Hydrometeorological Prediction Center
• SO — Southern Oscillation
• LCTMP — Little change in temperature
• PERM — Permanent
• EXTRM — Extreme
• MED — Medium
• TYPH — Typhoon
• FLW — Follow
• NASA — National Aeronautics and Space Administration (US)
• AD — Aerodrome
• MEX — Mexico
• LRG — Large
• DX — Duplex
• FZRA — Freezing Rain (METAR Code)
• MOVD — Moved
• DC — District of Columbia
• RGT — Right
• SNGL — Single

• SHRTLY — Shortly
• AFSS — Automated Flight Service Station
• HSD — Heavy Snow Discussion
• FL — Florida
• FSS — Flight Service Station
• BLKT — Blanket
• PRESFR — Pressure Falling Rapidly
• TMW — Tomorrow
• HGT — Height
• CDA — Command and Data Acquisition
• DE — DELAWARE
• WTR — Water
• TCU — Towering Cumulus
• IMPT — Important
• B — Blue
• ARTCC — Air Route Traffic Control Center
• MICRO-ART — Microcomputer Automatic Radiotheodolite Master Control Unit
• F — Degrees Fahrenheit
• ADR — Advisory Route
• RPT — Repeat
• PW — Precipitable Water
• TAF — Terminal Aerodrome Forecast
• SFC — Surface
• BLDS — Builds
• WDLY — Widely
• FLD — Field
• VC — Vicinity
• ALTHO — Although
• SEP — September
• MUCAPE — Most Unstable CAPE
• RUFLY — Roughly
• V — Velocity
• LTL — Little
• IMC — Instrument Meteorological Conditions
• COMPARD — Compared
• SHFT — Shift
• DFNT — Definite
• ATTM — At This Time
• VLCTYS — Velocities
• OML — Operations Manual Letter
• MTNS — Mountains
• TKE — Turbulent Kinetic Energy
• AC — Altocumulus
• TAS — True Airspeed
• NE — North-East
• HWY — Highway
• LCL — Local
• TURBT — Turbulent
• VOLMET — Meteorological information for aircraft in flight
• PDT — Product Development Team

• HRS — Hours
• WTSPT — Waterspout
• PD — Period
• NM — New Mexico
• VAD — Velocity-Azimuth Display
• LLWAS — Low Level Wind Shear Alert System
• NTFYD — Notified
• TC — Tropical Cyclone
• VOR — VHF Omnidirectional Range
• MLW — Mean Low Water (nautical Charts)
• AP — Airport
• FZFG — Freezing Fog
• ASOS — Automated Surface Observing System
• RPG — Radar Product Generator
• COND — Conditions
• CRNR — Corner
• PUGET — Puget Sound
• VR — Veer
• SHWR — Shower
• METRO — Metropolitan
• CONTLY — Continually
• OWS — Operational Weather Squadron
• NC — North Carolina
• CISK — Conditional Instability of the Second Kind
• ABV — Above
• PHYS — Physical
• IA — Iowa
• SCNDRY — SECONDARY
• CDM — Collaborative Decision Making
• DCP — Data Collection Platform
• LGTD — Lighted
• SRH — Storm-relative Helicity
• WV — Water Vapor
• SLP — Slope
• ACLTG — Accelerating
• ADQT — Adequate
• SS — Sandstorm
• INS — Inertial Navigation System
• Q — Quadrature
• LEN — Length
• AFTN — Afternoon
• FZDZ — Freezing Drizzle
• LI — Lifted Index
• X — Cross
• HZ — Haze (METAR Code)
• FFW — Flash Flood Warning
• BLSN — Blowing Snow (METAR Code)
• EPRI — Electric Power Research Institute (US)
• GOES — Geostationary Operational Environmental Satellite
• SAT — Saturday

• INTL — International
• AFD — Area Forecast Discussion
• DFNTLY — Definitely
• DTRTD — Deteriorated
• BA — Braking Action
• RCVG — Receiving
• MPC — Marine Prediction Center
• BINOVC — Breaks in overcast
• WINTEM — Forecast upper wind and temperature for aviation
• SXNS — Sections
• NEC — Necessary
• MVFR — Marginal Visual Flight Rules
• ACLTS — Accelerates
• ADVCTN — Advection
• MNM — Minimum
• BND — Bound
• THK — Thick
• PY — Spray
• MLLW — Mean Lower Low Water (nautical Charts)
• BRN — Bulk Richardson Number
• VSBY — Visibility
• AWIPS — Advanced weather Interactive Processing System (NOAA)
• ATCSCC — Air Traffic Control System Command Center
• WSR-57 — A NWS Weather Surveillance Radar designed in 1957
• PIREP — Pilot (weather) Report
• R — Required
• DCS — Data Collection System (NOAA Polar Orbiting Satellites)
• NBAA — National Business Aviation Association, Inc.
• CU — Cumulus
• VIP — Video Integrator and Processor
• MCC — Mesoscale Convective Complex
• DIR — Directory
• BCFG — Fog Patches
• NCAR/RAP — National Center for Atmospheric Research/Research Applications Program
• FFS — Flash Flood Statement
• TURB — Turbulence
• APRX — Approximate
• CDC — Climate Diagnostics Center
• TEMP — Temperature
• XBT — expendable bathythermograph (oceanography)
• TRMM — Tropical Rainfall Measuring Mission (US-Japan)
• AMDT — Amendment
• THRU — Through
• ID — IDentifier
• PUP — Principal User Processor (NEXRAD)
• CIG — Ceiling
• NLY — Northerly
• PRBLY — Probably
• WBZ — Wet-Bulb Zero
• RTRND — Returned

• IFR — Instrument Flight Rules
• DDS — Data Distribution System
• PRT — Pulse Repetition Time
• DMSHG — Diminishing
• FIR — Flight Information Region
• INTMT — Intermittent
• ROFOR — Route Forecast
• SMG — Space Flight Meteorology Group
• GR — Hail
• ARPT — Airport
• FFG — Flash Flood Guidance
• BCM — Become
• THKR — Thicker
• RPTS — Repeats
• SBSDD — Subsided
• EST — Estimate
• CI — Cirrus
• FM — From
• STN — Station
• PRSNT — Present
• NOSIG — No Significant Change
• TOP — Cloud Top
• DEG — Degree
• WB — Weather Bureau
• HDG — Heading
• NVA — Negative Vorticity Advection
• VV — Vertical Velocity
• NAMIS — NATO Automated Meteorological Information System
• YDA — Yesterday
• WNW — West-northwest
• OTR — Other
• BFR — Before
• T — Thunderstorm (weather reports)
• RVSD — Revised
• T — Temperature
• TDL — Techniques Development Laboratory
• WSW — West-southwest
• APCHG — Approaching
• RECON — Reconnaissance
• AS — Altostratus
• NSSL — National Severe Storms Laboratory
• VMC — visual meteorological conditions
• WSR-74 — A NWS Weather Surveillance Radar designed in 1974
• SWE — Snow Water Equivalent
• LIFR — Low Instrument Flight Rules
• DMNT — Dominant
• NELY — Northeasterly
• CNTRS — Centers
• WSFOS — Weather Service Forecast Offices
• CD — Climatological Data

• REQ — Request
• AOB — At or Below
• TOR — Tornado Warning
• BWER — Bounded Weak-Echo Region
• POSS — Possible
• SPCLY — Especially
• WUD — Would
• RA — Rain
• RTN — Return
• WI — Within
• LSR — Local Storm Report
• SUGG — Suggesting
• PAC — Pacific Region
• LLJ — Low Level Jet stream
• OTRW — Otherwise
• FLUC — fluctuation
• WB — Westbound
• UNL — Unlimited
• ADVYS — Advisories
• MNT — Monitor
• UIR — Upper Flight Information Region
• AVBL — available
• CNFDC — Confidence
• CHSPK — Chesapeake
• ACC — Area Control Center
• ADA — Advisory Area
• STFRM — Stratiform
• HAZ — Hazard
• MDL — Model
• SKED — Schedule
• ST — Stratus
• NNICE — Neural Network for Icing
• BKN — Broken
• WIBIS — Will Be Issued
• SMTM — Sometime
• RQRS — Requires
• DVRG — Diverge
• EXTN — Extension
• CB — Cumulonimbus
• PRVDD — Provided
• OAC — Oceanic Area Control Center
• INCR — Increase
• SHFTD — Shifted
• CUFRA — Cumulus Fractus
• WSWLY — West-Southwesterly
• SN — Snow
• NNW — North-Northwest
• HI — High
• ALERT — Automated Local Evaluation in Real Time
• ID — Idaho

• PRST — Persist
• SMPDBK — The Simplified Dam Break Model
• WRNGS — Warnings
• RESP — Response
• AIRMET — AIRman's METeorological Information
• PNHDL — Panhandle
• SXN — Section
• FA — Area Forecast
• FCSTR — Forecaster
• ROML — Regional Operations Manual Letter
• RHI — Range-Height Indicator
• UNKN — Unknown
• UCP — Unit Control Position
• SWEAT INDEX — Severe WEAther Threat Index
• Z — Zulu (Greenwich mean time)
• NWS — National Weather Service (formerly U.S. Weather Bureau)
• RPRT — Report
• WRN — Western
• NCAR — National Center for Atmospheric Research (US)
• WNWLY — West-northwesterly
• WMC — World Meteorological Center
• NCO — NCEP Central Operations
• SUPSDS — Supersedes
• FORNN — Forenoon
• AZM — Azimuth
• CSI — Conditional Symmetric Instability
• G — Green
• PRES — Pressure
• VIL — Vertically-Integrated Liquid water
• CNTRD — Centered
• ADDN — Addition
• ITCZ — Intertropical Convergence Zone (of Seawater)
• DDS — Domestic Data Service
• NRCS — Natural Resources Conservation Service
• REPL — Replace
• AMOS — Automated Meteorological Observing System
• OVR — Over
• EMC — Environmental Modeling Center
• RAOB — Radiosonde Observation
• BLO — Below
• UVV — Upward Vertical Velocity
• SMWHT — Somewhat
• DES — Descend
• CRC — Circle
• TSB — Technical Support Branch
• ETIM — ELAPSED TIME
• TRPCD — Tropical Continental
• FAR — False Alarm Ratio
• SARPS — Standards and Recommended Practices
• NAV — Navigator

• ANLYS — Analysis
• RGN — Region
• TROFS — Troughs
• TNGT — Tonight
• AWDS — Automated Weather Distribution System
• GFS — Global Forecast System
• LLP — Lightning Location and Protection, Inc
• LTGCC — Lightning Cloud-to-Cloud
• RDR — Radar
• LOC — Local
• PRI — Primary
• LGT — Light
• THR — Threshold
• DEP — Depart
• LAM — Logical acknowledgment
• INTVL — Interval
• SHUD — should
• FST — First
• BNDRY — Boundary
• APST — Aviation Products and Services Team
• SRN — Southern
• AOPA — Aircraft Owners and Pilots Association
• NCEP — National Centers For Environmental Prediction (form. NMC; NWS Center)
• BLD — Build
• CS — Cirrostratus
• API — Antecedent Precipitation Index
• BDRY — Boundary
• WSHFTS — Wind Shifts
• IAO — In And Out
• QUAD — Quadrant
• MB — Millibar(s)
• LMTD — Limited
• CNCL — Cancel
• NHC — United States National Hurricane Center
• LONG — Longitude
• OCS — Oklahoma Climatological Survey
• PTCHY — Patchy
• GV — Ground Visibility
• KLYR — Smoke Layer Aloft
• JUL — July
• PRECD — Precede
• INTSFYS — Intensifies
• FPM — Feet Per Minute
• AAA — Amended meteorological message
• AOML — Atlantic Oceanographic and Meteorological Laboratory (Miami, Florida) (ERL)
• AWHPS — Area Wide Hydrologic Prediction System
• DLY — Daily
• TROP — Tropopause
• ATLC — Atlantic
• JUN — June

• THKNG — Thickening
• NC — National Center
• INSTL — Install
• HN — Sunset to sunrise
• PRSTNC — Persistence
• VLY — Valley
• SE — Southeast
• DZ — Drizzle
• COV — Cover
• MNLY — Mainly
• AWT — Awaiting Trial
• OFP — Occluded Frontal Passage
• RWY — Runway
• CNTR — Center
• JAN — January
• CPBL — Capable
• NMC — National Meteorological Center (US)
• IMPR — Improve
• SHFTG — Shifting
• BLSA — Blowing Sand (METAR Code)
• VRISL — Vancouver Island, BC
• EAA — Experiment Aircraft Association
• SFERICS — Atmospherics
• MST — Mosta
• GFDL — Geophysical Fluid Dynamics Laboratory (NOAA US)
• ZN — Zone
• INOP — Inoperative
• AGN — Again
• ADM — Administrative Messages
• ESPINIT — ESP Initialization Program
• PRSTNT — Persistent
• ICGIC — Icing in Clouds
• VAL — Valley
• NWP — Numerical Weather Prediction
• IP — Ice Pellets
• CRCLN — Circulation
• THSD — Thousand
• DNSTRM — Downstream
• TDWR — Terminal Doppler Weather Radar
• BT — Bathythermograph
• USMC — United States Marine Corporation
• NSW — Nil Significant Weather
• INP — If Not Possible
• RVA — River Summary
• CAEM — Commission for Aeronautical Meteorology (WMO)
• EL — Equilibrium Level
• SHWRS — Showers
• RMNG — Remaining
• EXTD — Extend
• NW — North West

• NCDC — National Climatic Data Center
• AVN — Aviation Model
• BCKG — Backing
• AMIS — Automated Meteorological Information System
• APCH — approach
• COMET — Cooperative Program for Operational Meteorology, Education and Training
• UAB — Until Advised By
• RDC — Reduce
• GA — Georgia
• IMDTLY — Immediately
• LCTD — Located
• GAMA — General Aviation Manufacturers Association's
• DLT — Delete
• RSNS — Reasons
• THNG — Thinning
• SDF — Second-Day Feet
• SSWWD — South-Southwestward
• FEB — February
• ROC — Rate of Climb
• CDB — Computing Development Branch
• SG — Snow Grains (weather reports)
• NRN — Northern
• FEW — Few
• CANAM — Canadian/American
• DSIPTN — Dissipation
• ZNS — Zones
• XPLOS — Explosive
• AFOS — Automation of Field Operations and Services
• WFO — Weather Forecast Office
• PRBLTY — Probability
• DRFT — Drift
• CNDN — Canadian
• ARR — Arrive
• CCL — Convective Condensation Level
• QPFHSD — Ncep Heavy Snow Discussion
• DTRTG — Deteriorating
• AOB — Aviation Operations Branch
• VLYS — Valleys
• METAR — Meteorological Terminal Aviation Routine Weather Report
• MOD — moderate dysplasia
• RUC — Rapid Update Cycle
• CNL — Cancel
• AFT — Afternoon
• AFWA — Air Force Weather Agency
• MIC — Meteorologist-In-Charge
• CADAS — Centralized Automated Data Acquisition System
• MAR — March
• INVOF — In vicinity of
• INTCNTL — Intercontinental
• TWIP — Terminal Weather Information for Pilots

• NAT — North Atlantic
• CAVOK — conditions
• LDG — Landing (aviation)
• SM — Statute Mile
• FREQ — Frequency
• SWPC — Space Weather Prediction Center
• AHOS-S — Automatic Hydrologic Observing System - Satellite
• OVRN — Overrun
• MORENET — Missouri Research & Education Network
• TRMTD — Terminated
• FRQ — Frequent
• DISRED — Disregarded
• SUB — Substitute
• FRZN — Frozen
• TF — Terminal Forecast
• RMK — Remark
• ACCID — Notification of an aircraft accident
• RCHD — Reached
• PRBL — Probable
• ACARS — ARINC Communications Addressing and Reporting System
• ABNDT — Abundant
• ERN — Eastern
• ESTAB — Establish
• RTRNG — Returning
• OAT — Outside Air Temperature
• PRESRR — Pressure Rising Rapidly
• HSF — High Seas Forecasts
• TSTM — Thunderstorm
• FAH — Fahrenheit
• VISSR — visible and infrared spin scan radiometer (GOES)
• HVY — Heavy
• LOT — Local Office Team
• TSFRS — Transfers
• CEM — Civil Emergency Message
• CNTRL — Central
• RSNG — Reasoning
• KM — Kilometers to Miles
• PCPN — Precipitation
• PSBLTY — Possibility
• YKN — Yukon
• EV — every
• NSSFC — National Severe Storms Forecast Center
• FAM — Familiar
• LTST — Latest
• DVV — Downward Vertical Velocity
• ACCAS — Altocumulus Castellanus
• CC — Cirrocumulus
• TRNSP — Transport
• PUP — Principle User Processor
• DSIPT — Dissipate

• ENHNC — Enhance
• BRF — Brief
• FC — Funnel Cloud
• LVLS — Levels
• RCM — Radar Coded Message
• CNCLG — Cancelling
• RSTRG — Restricting
• APRXLY — Approximately
• SPKLS — Sprinkles
• FLRYS — Flurries
• SHEFPARS — A software decoder for SHEF Data
• DSF — Day-Second Feet
• MAP — Mean Areal Precipitation
• DVRGG — Diverging
• AFWIN — Air Force Weather Information Network
• BLZD — Blizzard
• FSL — Forecast Systems Laboratory (a NOAA ERL)
• SKC — Sky Clear
• RSG — Rising
• ADVY — Advisory
• SBSD — Subside
• RIOGD — Rio Grande
• UNSTLD — Unsettled
• TOVC — Top of Overcast
• BRG — Branching
• RTD — Delayed
• OUBD — Outbound
• CDFNT — Cold Front
• SATFY — Satisfactory
• STF — Stratiform
• COMPAR — Compare
• SHRT — Short
• VAS — VISSR Atmospheric Sounder
• KBDI — Keetch-Byram Drought Index
• RMNDR — Remainder
• SMTH — Smooth
• CAA — Cold Air Advection
• DIFAX — Digital Facsimile
• THTN — Threaten
• OSO — Office of Systems Operations
• VER — Vertical
• ADZ — Advise
• ZR — Freezing Rain
• NNE — North-North-East
• CNTY — County
• ITWS — Integrated Terminal Weather System
• SVG — Serving
• THU — Thursday
• NAWAU — National Aviation Weather Advisory Unit
• KT — Knots

• SHFTS — Shifts
• WEFAX — Weather Facsimile
• GAI — Global Atmospherics Inc
• GEMPAK — General Environmental Meteorological Package
• EB — Eastbound
• LLWS — Low Level Wind Shear
• RCMD — Recommend
• SPC — Storm Prediction Center
• LN — Line
• MWO — Meteorological Watch Office
• DPNG — Deepening
• ACSL — Altocumulus Standing Lenticular
• SLD — Supercooled Large Drops
• VIS — Visible
• EHI — Energy Helicity Index
• WSHFT — Wind Shift
• LCTN — Location
• AGFS — Aviation Gridded Forecast System
• ALTM — Altimeter
• OPN — Open
• EWD — Eastward
• ABNML — Abnormal
• TOPS — Tops
• SCA — Small Craft Advisory
• UCAR — University Corporation for Atmospheric Research
• FT — Terminal Forecast
• CPC — Climate Prediction Center (NWS Center)
• SUP — Supply
• WS — Wind Shear
• INPR — in progress
• SRND — Surround
• CIN — Convective Inhibition
• RAFS — Regional Analysis and Forecasting System
• DMSHS — Diminishes
• SR — Sunrise
• RPTG — Repeating
• FQT — Frequent
• WND — Windsor
• VRY — Very
• BYD — Beyond
• VOR — VHF Omnidirectional Radio Range
• PRECDG — Preceding
• BLKTG — Blanketing
• HV — Have
• ISOL — Isolate
• LK — Lake
• BECMG — Becoming
• PDS — Periods
• EUMETSAT — European Organization for the Exploitation of Meteorological Satellites
• CONS — Continuous

• SWO — Staff Weather Officers
• WWD — Westward (weather reports)
• CYC — Cyclonic
• EC — Environment Canada
• SEWD — Southeastward
• ACYC — Anticyclone
• DSND — Descend
• CRCLC — Circulate
• SAW — Preliminary Notification of Forthcoming Watch
• WA — Western Approaches
• OPS-II — Operational Weather Squadron Production System II
• RW — Rain Shower
• FLG — Flashing
• DSIPTG — Dissipating
• ENDG — ending
• FNTL — Frontal
• COM — Communications Society
• RCMDD — Recommended
• HVYST — Heaviest
• SQ — Squall
• NFDRS — National Fire Danger Rating System
• VFY — Verify
• CNTRLN — Centerline
• DAPM — The Data Acquisition Program Manager
• EPV — Equivalent Potential Vorticity
• BASE — Cloud base
• CIP — Current Icing Potential
• ATAD — Automated Telephone Answering Device
• UDDF — Up and Down Drafts
• ALUTN — Aleutian
• DRFTG — Drifting
• BRM — Barometer
• CONTDVD — Continental Divide
• CAFTI — Committee on Analysis and Forecast Techniques Implementation
• TSFR — Transfer
• ADL — Additional
• HTC — The Hydrometeorological Training Council
• CMPLX — Complex
• CNVTV — Convective
• EXC — Except
• NEXRAD — Next-Generation Weather Radar (NWS)
• INTSFYG — Intensifying
• CONTRAILS — Condensation Trails
• SLD — Solid
• WAA — Warm Air Advection
• LFM — Limited Fine Mesh
• AIV — Aviation Impact Variable
• RAFC — Regional Area Forecast Center
• QBI — Compulsory IFR flight
• RQR — Require

• ENCTR — Encounter
• PRSNTLY — Presently
• BLDUP — Buildup
• UPR — Upper
• RE — Regard
• MTN — Mountain
• NCWX — No Change in Weather
• FRMG — Forming
• QUE — Quebec
• SPECI — Aviation selected special weather report
• RCH — Reach
• GEO — Geographic
• NR — Number
• OTP — On Top
• CLDS — Clouds
• WMSCR — Weather Message Switching Center Replacement
• UPDFTS — Updrafts
• AMPG — Amplifying
• LO — Low
• RFD — Rear Flank Downdraft
• DISRE — Disregard
• HIFOR — High Level Forecast
• COT — At the Coast
• SPD — Speed
• ADVN — Advance
• ETA — Greek letter, describes a constant height coordinate model system
• ACTVTY — Activity
• DPTH — Depth
• ROTD — Rotated
• SBLI — Lifted Index calculated using surfaced based parcel
• KMH — Kilometers per hour
• OBSC — Obscure
• METOC — Meteorological and Oceanographic
• ASSOCD — Associated
• TIP — Until past
• TSNT — Transient
• CBMAM — Cumulonimbus Mammatus
• FRM — Form
• RCMDG — Recommending
• ACLT — Accelerate
• SGFNT — Significant
• BLW — Below
• TIL — Until
• NCCF — NOAA Central Computer Facility
• THNR — Thinner
• TVS — Tornado Vortex Signature
• SIGMET — Significant Meteorological Advisory
• MSTR — Moisture
• NOHRSC — The National Operational Hydrologic Remote Sensing Center
• LEWP — Line Echo Wave Pattern

• PSND — Positioned
• CFP — Cold Front Passage
• ADVCTD — Advected
• PRECDS — Precedes
• LONGL — Longitudinal
• SLOLY — Slowly
• RTRNS — Returns
• AAWU — Alaskan Aviation Weather Unit
• PROGD — Forecasted
• VVP — Volume Velocity Processing
• SLW — Slow
• ALF — Aloft
• QN — Question
• CSW — Committee for Space Weather
• ACPY — Accompany
• RQRG — Requiring
• CLEICEIO — Great Lakes 5-Day Ice Outlook
• FG — Fog Gun
• LMTG — Limiting
• PSBL — Possible
• ERL — Environmental Research Laboratories (absorbed By OAR Or NOAA Research)
• QFE — Atmospheric Pressure At Aerodrome Elevation
• FCSTS — Forecasts
• MDCRS — Meteorological Data Communications and Reporting System
• MDFYD — Modified
• SBSDS — Subsides
• CLRG — Clearing
• TROF — Trough
• AWN — Automated Weather Network
• GOES — Geostationary Orbiting Environmental Satellite
• TRML — Terminal
• FNCTN — Function
• OVNGT — Overnight
• DNSLP — Downslope
• VLNT — Violent
• HMD — Hemispheric Map Discussion
• AHOS-T — Automatic Hydrologic Observing System - Telephone
• EXCLV — Exclusive
• SBCAPE — CAPE calculated using a Surface based parcel
• ANBURS — Alphanumeric Backup Replacement System
• DEGS — Degrees
• AIRMET — Airman's Meteorological advisory
• NSC — Nil Significant Cloud
• WINT — Winter
• ARTYMET — Artillery Meteorological
• CARIB — Caribbean
• HPD — Hourly Precipitation Data
• CSTAR — Collaborative Science, Technology and Applied Research
• VRB — Variable
• FMT — Format

• SST — Sea surface temperature
• DFCLT — Difficult
• ADRNDCK — Adirondack
• EFF — Experimental Forecast Facility
• TCNTL — Transcontinental
• MHKVLY — Mohawk Valley
• SYNS — Synopsis
• DVRGNC — Divergence
• LMTS — Limits
• HND — Hundred
• LGRNG — Long Range
• DAMBRK — The Dam Break Forecasting Model
• TT — Total Totals
• TMPRYLY — Temporarily
• INC — in cloud
• OM — Office of Meteorology
• APRNTLY — Apparently
• USWB — United States Weather Bureau
• VFYG — Verifying
• AVARS — Aircraft Vertical Acceleration Reporting System
• IWEDA — Integrated Weather Effects Decision Aid
• WED — Wednesday
• RAM — Regional Area Meteorologist
• LFTG — Lifting
• SAWRS — Supplementary Aviation Weather Reporting Station
• STGLY — Strongly
• FRZ — Freeze
• WAFS — World Area Forecast System
• OBS — Observe
• HADS — Hydrometeorological Automated Data System
• ESEWD — East-Southeastward
• RPD — Rapid
• MAREP — Marine Reporting Program
• FCSTD — Forecasted
• TT — Teletype
• HOL — Holiday
• SPD — speed of pupillary dilation
• AFCTG — Affecting
• IMT — immediate
• CASC — Central Administrative Support Center
• SGFNTLY — Significantly
• AFTN — Air Force Television Network
• MCIDAS — Man-computer Interactive Data Access System
• WKDAY — Weekday
• XNG — Crossing
• APCHS — Approaches
• ENELY — East-northeasterly
• MDS — Minimum Discernible Signal
• AWC — Aviation Weather Center
• RVF — River Forecast

• COMPARS — Compares
• BRKS — Breaks
• RVS — River Statement
• DMSH — Diminish
• NNELY — North-northeasterly
• KMARD — Kansas Modernization and Restructuring Demonstration
• PRECDD — Preceded
• DNR — Department of Natural Resources
• WIST — Weather Information for Surface Transportation
• AFW — Air Force Weather
• STBLTY — Stability
• SLY — Southerly
• FZ — Freezing
• CLEGLFGLS — Great Lakes Marine Synopsis
• IMPLS — Impulses
• NOPAC — Northern Pacific
• DIF — Diffuse
• AMP — Amplify
• RMN — Remain
• OSV — Ocean Station Vessel
• JMA — Japanese Meteorological Agency
• BRKG — Breaking
• OMTNS — Over Mountains
• DVRGS — Diverges
• ASH — Assistant Service Hydrologist
• OVTK — Overtake
• NML — Normal
• NTFY — Notify
• SNFLK — Snow flake
• OCLDD — Occluded
• AFCTD — Affected
• RVS — Revise
• VCNTY — Vicinity
• OU — University of Oklahoma
• HDSVLY — Hudson Valley
• IC — Ice Crystals
• REQS — Requests
• OTW — Owning The Weather
• EMBD — Embedded in a layer
• MRGLLY — Marginally
• MPL — Max Parcel Level
• THDR — Thunder
• BLKTS — Blankets
• WTU — Weather Technology Unit
• AWOS — Automated Weather Observation System
• QG — An abbreviation for quasigeostrophic
• TSFRG — Transferring
• NMBRS — Numbers
• ARAM — Aviation, Range and Aerospace Meteorology
• BRKHIC — Breaks in higher clouds

• NAP — NCEP Advisory Panel
• SD — Storm Data
• TR — Track
• PEN — Peninsula
• SWOMCD — SELS Mesoscale Discussion
• INDCD — Indicated
• NAVPACMETOCCEN — Naval Pacific Meteorology and Oceanography Center, Pearl Harbor, Hawaii
• DISREG — Disregarding
• RVSS — Revises
• WL — will
• IMDT — Immediate
• RLTVLY — Relatively
• ICGIP — Icing in Precipitation
• BRS — Branches
• ZL — Freezing Drizzle
• DTRT — Deteriorate
• RPDLY — Rapidly
• INSTF — Intensify
• FLWG — Following
• OVC — Overcast (METAR Code)
• GLFMEX — Gulf of Mexico
• CLEGLSCLE — Great Lakes Storm Summary
• GRTLY — Greatly
• ESA — Electronic Systems Analyst
• ADVS — Advisory Service
• SUBTRPCL — Subtropical
• INBD — Inbound
• LTGCCCG — Lightning cloud-to-cloud cloud-to-ground
• SWODY1 — Day 1 Convective Outlook
• FNTS — Fronts
• MIDN — Midnight
• DSTC — Distance
• CUF — Cumuliform
• RCRDS — Records
• RPLC — Replace
• EXTRAPD — Extrapolated
• KFRST — Killing Frost
• LRGR — Larger
• SHRTWVS — Shortwaves
• MBRFC — Missouri Basin River Forecast Center
• INDCG — Indicating
• DSTBLZ — Destabilize
• ENRT — En Route
• SEPN — Separation
• ECMWF — European Center for Medium-Range Weather Forecasting model
• SUF — Sufficient
• INTST — Intensity
• VCTR — Vector
• CLEGLOCLE — Great Lakes Storm Outlook
• ADVCTG — Advecting

• MDLS — Models
• ROBEX — Regional OPMET bulletin exchange
• SPRD — Spread
• CLKWS — Clockwise
• LTGCW — Lightning Cloud-to-Water
• PIREP — Pilot Report
• RCKYS — Rockies
• ESELY — East-southeasterly
• ICG — Icing
• DELMARVA — Delaware-Maryland-Virginia
• PROC — Procedure
• FRZG — Freezing
• NCDB — NCEP Computer Development Branch
• SWODY2 — Day 2 Convective Outlook
• DISCG — Discontinuing
• SRNDG — Surrounding
• DVLPMT — Development
• INCRS — Increases
• CNVGG — Converging
• APSG — After passing
• RSTR — Restrict
• SRNDS — Surrounds
• WARP — Weather and Radar Processor
• RTA — Remote to AFOS
• RPRTD — Reported
• FPO — Flood Potential Outlook
• PSBLY — Possibly
• MDFYG — Modifying
• OCLN — Occlusion
• SCND — Second
• CCLKWS — Counter-Clockwise
• INTSTY — Intensity
• WRMST — Warmest
• ART — Automatic Radio Theodolite Master Control Unit As
• RPRTS — Reports
• EXPCD — Expected
• GRID — Processed meteorological data in the form of grid point values
• SELY — Southeasterly
• NWSRFS V5.0 — National Weather Service River Forecast Model Version 5
• LKS — Lakes
• SIERNEV — Sierra Nevada
• RES — Reserve
• NLDN — National Lightning Detection Network
• NMRS — Numerous
• WLY — Westerly
• SASK — Saskatchewan
• FCSTG — Forecasting
• APRNT — Apparent
• ULJ — Upper-Level Jet
• DBNET — Distributed Brokered Networking

• NNWLY — North-northwesterly
• NEW ENG — New England
• DURN — Duration
• LKLY — Likely
• RCS — Reflectivity Cross Section
• NEXRAD — Next Generation Weather Radar
• AOA — At or Above
• ONSHR — Onshore
• XTRM — Extreme
• TPC — Tropical Prediction Center
• MAY — Mayaro
• VRT MOTN — Vertical Motion
• BNDRYS — Boundaries
• MLOS — Microwave Line-Of-Site
• ADVIS — Headwater Advisory Program
• DSIPTD — Dissipated
• INSTBY — Instability
• PL — Ice Pellets or Sleet
• WDSPR — Widespread
• WRNG — Warning
• RTVS — Real Time Verification System
• ADVNG — Advancing
• SUPG — Supplying
• FRI — Friday
• INCRGLY — Increasingly
• CTSKLS — Catskills
• WND — Wind
• ASSOCN — Association
• GRTST — Greatest
• VCY — Vicinity
• MOVG — Moving
• MLLI — Mean Layer Lifted Index
• NAVMETOCCOM — Naval Meteorology and Oceanography Command
• WFP — Warm Front Passage
• WK — Weak
• TAWS — Tactical Acquisition Weather Software
• DVLP — Develop
• DVLPG — Developing
• LEVEL — Level
• VA — Virginia Ash
• NRW — Narrow
• EXCLVLY — Exclusively
• CIGS — Ceilings
• TDO — Tornado
• MTW — Mountain Waves
• TAFB — Tropical Analysis and Forecast Branch
• CDFS — Cloud Depiction and Forecast System
• INCLG — Including
• PARL — Parallel
• LTG — Lightning

• ESERN — East-Southeastern
• DFCLTY — Difficulty
• NRLY — Nearly
• SPRDG — Spreading
• INTMTLY — Intermittently
• OCFNT — Occluded Front
• DOM — Domestic
• MRGL — Marginal
• ETA — estimating arrival
• REPLD — Replaced
• TSSN — Thundersnow
• BRKSHRS — Berkshires
• FAWS — Flight Advisory Weather Service
• SRNDD — Surrounded
• AMD — amend
• STLT — Satellite
• BDA — Bermuda Island
• PS — Plus
• URG — Urgent
• HLYR — Haze Layer Aloft
• VIL — Vertically Integrated Liquid
• INTSFYD — Intensified
• DWOPER — Dynamic Wave Routing Model
• TNTVLY — Tentatively
• MOVMT — Movement
• HEL — Helicopter
• INTRMTRGN — Intermountain Region
• DSNDG — Descending
• OFF — Offshore Forecast
• WCM — Warning Coordination Meteorologist
• DVLPD — Developed
• LTGIC — Lightning in Cloud
• ROD — Rate Of Descent
• CTWFC — CINC Target Weather Forecast Center
• PRVD — Provide
• VRBL — Variable
• SCTR — Sector
• AC — Anticipated Convection Outlook
• ISCS — International Satellite Communications System
• AGRS — Agrees
• EVE — Evening
• EXTSV — Extensive
• PPINE — Plan Position Indicates No Echoes
• DP — Deep
• DMSHD — Diminished
• IIDA — Integrated Icing Diagnostic Algorithm
• BGN — Begin
• ERYR — Earlier
• RS — Receiver station
• EXPCG — Expecting

• LYR — Layer
• NWSTC — National Weather Service Training Center
• HVYR — Heavier
• IPV — Improve
• STNS — Stations
• CHGS — Changes
• NBND — Northbound
• RMNS — Remains
• TWI — Twilight
• ALGHNY — Allegheny
• LDM — Local Data Manager
• SHRTWV — Shortwave
• NATA — National Air Transportation Assoc.
• SUG — Suggest
• RSTRD — Restricted
• SVRL — Several
• HDWND — Head Wind
• CDFNTL — Cold frontal
• EVAD — Extended Velocity
• EXTRMLY — Extremely
• INDC — indicate
• FILG — Filling
• HRL — The Hydrological Research Laboratory
• NFLD — Newfoundland
• INDCS — Indicates
• EXP — Expect
• FIC — Flight Information Center
• SAMEX — Storm and Mesoscale Ensemble Experiment
• ELNGTD — Elongated
• SPOT — Spot Wind
• SUPS — Supplies
• PLVL — Present Level
• STDY — Steady
• ERY — Early
• WKEND — Weekend
• HWVR — However
• DSTBLZN — Destabilization
• UVVS — Upward Vertical Velocities
• SQSN — Snow Squalls
• HURCN — Hurricane
• CGEN — Convective Sigmet Generation
• OHD — Overhead
• APPRG — Appearing
• FAX — Facsimile Transmission
• DPND — Deepened
• OCNL — Occasional
• GNDFG — Ground Fog
• IOVC — In Overcast
• RGLR — Regular
• XS — Atmospherics

• DIGG — Digging
• MAN — Manitoba
• STP — Storm Total Precipitation
• CNCLS — Cancels
• PROB — probability
• TRNSPG — Transporting
• ACLTD — Accelerated
• DSTBLZG — Destabilizing
• CHGD — Changed
• SERN — Southeastern
• CAAM — Computer Assisted Artillery Meteorology
• LRGLY — Largely
• AWSS — Aviation Weather Sensor System
• THRFTR — Thereafter
• USBR — US Bureau of Reclamation
• TFU — Theater Forecast Unit
• CWF — Combat Weather Flight
• INTRP — Interrupt
• GRTLKS — Great Lakes
• RSN — Reason
• EPD — Extended Forecast Discussion
• BLKHLS — Black Hills
• NEXRAD — NEXt generation of weather RADar
• DSCNT — Descent
• OCNLY — Occasionally
• ASB — Aviation Support Branch
• LGWV — Long Wave
• WIMS — Weather Information Management System
• PSG — Passing
• CCSL — Cirrocumulus Standing Lenticular
• HPA — Hectapascal
• DRFTD — Drifted
• CNVGNC — Convergence
• RGNS — Regions
• INDEF — Indefinite
• BAMS — Bulletin of the American Meteorological Society
• CVRD — Covered
• RL — Report Leaving
• AMPLTD — Amplitude
• TRMTS — Terminates
• FNT — Front
• GLFALSK — Gulf of Alaska
• LPATS — Lightning Position And Tracking System
• ROSA — Remote Observing System Automation
• WRS — Worse
• OFCM — Office of the Federal Coordinator for Meteorological Services and Supporting Research
• ATDTDCS — Automated Tone Dial Telephone Data Collection System
• TURBC — Turbulence
• BTL — Between layers
• SPDS — Speeds

• ASAPTRAN — The software component of ASA
• RMND — Remained
• SP — Snow Pellets
• GEOREF — Geographical reference
• ENERN — East-northeastern
• INCRG — Increasing
• UVM — Upward Vertical Motion
• WAFC — World Area Forecast Center
• APLCNS — Appalachians
• STAGN — Stagnation
• WDI — Wind Direction Indicator
• DGNLLY — Diagonally
• BAJA — Baja California
• MMS-P — Meteorological Measuring System-Profiler
• CLEICEFBO — Great Lakes Ice Outlook for the Opening of Navigation
• INTSFCN — Intensification
• MCIDAS — Man Computer Interactive Data Acquisition System
• AMS — American Meteorology Society
• AHD — Ahead
• GS — Small hail and snow pellets
• SSW — South Southwest
• FOS — FAMILY OF SERVICES
• DSNT — Distant
• AMDG — Amending
• GSTS — Gusts
• EFCT — Effect
• MEGG — Merging
• ESNTL — Essential
• MARD — Modernization and Restructuring Demonstration
• OVRNG — Overrunning
• ARCUS — Arc Cloud
• GRDLY — Gradually
• INVRN — Inversion
• THTNG — Threatening
• ELSW — Elsewhere
• SFD — STATE FORECAST DISCUSSION
• MULTILVL — Multi-level
• FCEXEC — A component of the NWSRFS FCST Program
• APLCN — Appalachian
• THTNS — Threatens
• MESO — Mesoscale
• HLSTO — Hailstones
• NS — Nimbostratus
• STG — Strong
• PC-GRIDDS — Pc-Gridded Interactive Display and Diagnostic System
• WSP — Weather Systems Processor
• DGNL — Diagonal
• RE — Recent
• M — Mesocyclone
• CWSU — Center Weather Service Unit

• I — See inphase
• LV — Leaving
• OBST — Obstacle
• VFYD — Verified
• ET — Electronic Technician
• SLT — Sleet
• EXCP — Except
• SS — Sunset
• GENLY — Generally
• MSTLY — Mostly
• ARFOR — Area Forecast
• DCRGLY — Decreasingly
• ENHNCS — Enhances
• PVLG — Prevailing
• DSTBLZD — Destabilized
• EMERG — Emergency
• SPLNS — Southern Plains
• DISC — Discontinue
• ARND — Around
• WID — Width
• ASC — Aviation Services Coordinator
• ASC — Ascent to
• LRGST — Largest
• NADIN — National Airspace Data Interchange Network
• FDR — Fire Danger Rating
• EXTDD — Extended
• SCT — Scattered
• SNBNK — Snow bank
• CNTYS — Counties
• CLA — Clear type of ice formation
• DWNDFTS — Downdrafts
• IOS — Integrated Operational Services
• NGM — Nested Grid Model
• HLF — Half
• TWRG — Towering
• METAR — Meteorological Aviation Report
• ENHNCD — Enhanced
• DFUS — Diffuse
• ACRS — Across
• HRZN — Horizon
• ICE — icing
• CASCDS — Cascades
• STMS — Storms
• FLG — Falling
• DWPNTS — Dewpoints
• NERN — Northeastern
• ENHNCG — Enhancing
• ZE — Equivalent Radar Reflectivity
• IFLOWS — The Integrated Flood Observing and Warning System
• FRWF — Forecast Wind Factor

• PVL — Prevail
• NWB — North-westbound
• OUTFLO — Outflow
• JTSTR — Jet Stream
• DVLPS — Develops
• WRS — Weather Reconnaissance Squadron
• QPF — Quantitative Precipitation Forecast
• BRKSHR — Berkshire
• FIAS — Flight Information Advisory Service
• RTRN — Return
• MRNG — Morning
• PRVDS — Provides
• HYR — Higher
• NMBR — Number
• COMPARG — Comparing
• UNEC — UnNECessary
• FQTLY — Frequently
• CLEICEFBO — Great Lakes Freeze-Up Outlook
• ALTA — Alberta
• SHEF — Standard Hydrologic Exchange Format
• FRST — Frost
• THD — Thunderhead
• GRTR — Greater
• NCWF — National Convective Weather Forecast
• ENEWD — East-northeastward
• WIDA — Weather Impact Decision Aids
• DNDFTS — Downdrafts
• DMGD — Damaged
• INCRD — Increased
• REPLG — Replacing
• NWLY — Northwesterly
• STBL — Stable
• DSIPTS — Dissipates
• AMDD — Amended
• SUPR — Superior
• DUR — Duration
• CONTG — Continuing
• MON — Monday
• LWR — Lower
• SIMUL — Simultaneous
• AGRD — Agreed
• SUGS — Suggests
• NBRHD — Neighborhood
• RPRTG — Reporting
• GOM — Global Ocean Model
• NWRN — Northwestern
• FVT — Forecast Verification Tool
• PQPF — probabilistic quantitative precipitation forecast
• BGNS — Begins
• PGTSND — Puget Sound

• SBND — South bound
• XPC — Expect
• T — Thunder
• MULT — Multiple
• KCFB — Kansas City Federal Building
• WRM — Warm
• CPHC — Central Pacific Hurricane Center
• DISCD — Discontinued
• MLCAPE — Mean Layer CAPE
• VWP — Velocity Azimuth Display Wind Profile
• SWB — South-Westbound
• EXTDS — Extends
• WVS — Waves
• SNST — Sunset
• RCRD — Record
• ENHNCMNT — Enhancement
• LAN — Inland
• MOVS — Moves
• ATWIS — Advanced Transportation Weather Information System
• SUN — Sunday
• CVRG — Covering
• RGL — Regional Model
• DRFTS — Drifts
• GLFCAL — Gulf of California
• RSMC — Regional/Specialized Meteorological Centers
• MRTM — Maritime
• NNEWD — North-Northeastward
• PPI — Plane Position Indicator
• WRMFNT — Warm Front
• DIV — Divert
• MWAVE — Mountain Wave Algorithm
• MNLND — Mainland
• APPR — Appear
• U/S — Unserviceable
• OFSHR — Offshore
• RAWS — Remote Automatic Weather Station
• RAG — Ragged
• FCMSSR — Federal Committee for Meteorological Services and Supporting Research
• AMDAR — Automatic Meteorological Data And Reporting
• ATMU — AIR TRANSPORTABLE MOBILE UNIT
• SAO — Surface observation
• UNRSTD — Unrestricted
• DEV — Deviation
• CNVTVLY — Convectively
• DMGG — Damaging
• ENSO — El Niño and Southern Oscilation
• ELNGT — Elongate
• BPAA — Business Pilots Aircraft Association
• ER — Here
• PRVDG — Providing

• DCRG — Decreasing
• UNSBL — Unseasonable
• SVR — Severe
• NACA — National Advisory Committee on Aeronautics
• RPLCD — Replaced
• GTG — Graphical Turbulence Guidance
• CHGG — Changing
• SLO — Slow
• SMW — Special Marine Warning
• TMPRY — Temporary
• VA — Volcanic Ash
• VORT — Vorticity
• CBOFS — Chesapeake Bay Oceanographic Forecasting System
• LDADS — Local Data Acquisition and Dissemination System
• DCR — Decrease
• RAMSDIS — RAMM Advanced Meteorological Satellite Demonstration and Interpretation System
• CWF — Coastal Marine Forecasts
• EXTDG — Extending
• SWI — Showalter Index
• PE — Ice pellets
• MTU — Metric units
• NOWCAST — Short Term Forecast
• CWS — Combat Weather Squadron
• PTNLY — Potentially
• FG — Foggia
• STM — Storm
• PLNS — Plains
• CSTL — Coastal
• UNRELBL — Unreliable
• JCTN — Junction
• RDVLP — Redevelop
• COOR — Co-ordinate
• VGF — Virtual Graphics File
• CG — Cloud-Ground Lightning
• MMS — METEOROLOGICAL MEASURING SYSTEM
• CRP — Critical Rainfall Probability
• VFYS — Verifies
• TRBL — Trouble
• INLD — Inland
• STNRY — Stationary
• MDTLY — Moderately
• ADVCT — Advect
• ISOLD — Isolated
• SC — Stratocumulus (cloud formation)
• MULI — Most Unstable Lifted Index
• NB — NorthBound
• LWRG — Lowering
• LINUX — UNIX-like computer operating system
• ADVCTS — Advects
• XCP — Except

• OVTKS — Overtakes
• SELS — SEvere Local Storms Unit
• RPLCG — Replacing
• UNSTBL — Unstable
• DSTBLZS — Destabilizes
• CAWIS — Committee for Automated Weather Information Systems
• GRDL — Gradual
• WETM — Weather Team
• NEWD — Northeastward
• SMOOS — Shipboard Meteorological and Oceanographic Observing Sensor
• GSTY — Gusty
• SLGT — Slight
• BCMG — Becoming
• OCRS — Occurs
• OCLDG — Occluding
• R — Reduction
• NESDIS/SAB — National Environmental Satellite, Data and Information Service/Satellite Analysis Branch
• USWRP — United States Weather Research Program
• SAP — As soon as possible
• SCTD — Scattered
• ESTS — Estimates
• IFFDP — International Flight Folder Documentation Program
• SNWFL — Snowfall
• NWSEO — National Weather Service Employees Organization
• TSIP — Thundersleet
• DLA — Delay
• DCRS — Decreases
• GLFSTLAWR — Gulf of St. Lawrence
• PROGS — Forecasts
• MOV — Move
• SSE — South-Southeast
• ALG — Along
• SAOS — Surface Observations
• DLAD — Delayed
• EXPC — Expect
• DURG — During
• OCWWS — Office of Climate, Water and Weather Services
• STFR — Stratus Fractus
• MESO — Mesoscale Convective Unit
• SEL — Severe Thunderstorm Watch, Tornado Watch
• TPG — Topping
• OSD — Office of Systems Development
• SSHP — Site Specific Hydrologic Prediction System
• OCRG — Occurring
• ROT — Rotate
• ET — Echo Tops
• GRAD — Gradient
• LN — Line Network
• DWSW — Deployable Weather Satellite Workstation
• RR — Report Reaching

• NMOC — National Meteorological Operations Centre
• DMCC — DOE Meteorological Coordinating Council
• BFDK — Before Dark
• RGD — Ragged
• WKNS — Weakens
• FLN — National Flood Summary
• NWR — NOAA Weather Radio
• PRIND — Present indications are
• DSNDS — Descends
• BGNG — Beginning
• USACE — Unites States Army Corps of Engineers
• DNWND — Down wind
• CLRS — Clears
• LSQ — Line Squall
• FOUS — Forecast Output United States
• RHINO — RHI not operative
• SEV — Severe
• TEMPO — Temporary
• CW — Cloud-Water Lightning
• ETC — Echo Tops Contour
• VLNTLY — Violently
• MXD — Mixed
• IMPL — Impulse
• VCOT — VFR Conditions on Top
• WSFO — Weather Service Forecast Office
• INCLD — Included
• MC — Meteorological Codes
• SSEWD — South-Southeastward
• OCRD — Occurred
• IWRS — Improved Weather Reconnaissance System
• SDM — Senior Duty Meteorologist
• RESTR — Restrict
• TWR — Tactical Weather Radar
• TRMT — Terminate
• FROSFC — Frontal Surface
• SNW — Snow
• ITT — Information Technology Team
• HP — High Precipitation
• WKN — Weaken
• VCS — Velocity Cross Section
• DRG — During
• HCVIS — High Clouds Visible
• WST — Weather Support Team
• ARSI — Atmospheric Research System, Inc.
• DFRS — Differs
• HSA — Hydrologic Service Area
• PWO — Public Severe Weather Outlook
• QTP — Quality Through Partnership
• WNWWD — West-Northwestward
• UKMETO — United Kingdom Meteorological Office

• VSA — By Visual Reference to the Ground
• INTSFY — Intensify
• THNST — Thinnest
• TDA — Today
• NAVTEX — Navigational Telex
• ESF — Flood Potential Outlook
• VLCTY — Velocity
• SPECIAL — Special Meteorological Report
• SRRS — Systems Record Retention System
• NWD — Northward
• SWD — Southward
• SPRL — Spiral
• LGTR — Lighter
• NAWPC — National Aviation Weather Program Council
• WTRS — Waters
• NWP — Numerical Weather Predication
• DRZL — Drizzle
• VDUC — VAS Data Utilization Center
• NOWS — NVG Operations Weather Software
• HIC — Hydrologist In Charge
• MST — Meteorological Support Teams
• FFA — Flood Frequency Analyses
• HLS — Hurricane Local Statement
• FFA — Flood
• NWSH — National Weather Service Headquarters
• ASMD — As amended
• PROG — Forecast
• METMFR — Meteorological Mobile Facility Replacement
• UNREL — Unreliable
• NNWWD — North-Northwestward
• BD — Blowing Dust
• CNIF — Calibration Network Information Files
• BCMS — Becomes
• HSB — Hydrologic Systems Branch in the Office of Hydrology
• GICG — Glaze Icing
• CRNRS — Corners
• LWRD — Lowered
• TSRA — Thunderstorm with rain
• TWDS — Towards
• ERD — Excessive Rainfall Discussion
• EMBDD — Embedded
• AHOS — Automatic Hydrologic Observing System
• OVTKG — Overtaking
• DNS — Dense
• CWA — Center Weather Advisory - CWSU
• CAPPI — CONSTANT ALTITUDE PPI
• SIGWX — Significant Weather
• PSCZ — Puget Sound Convergence Zone
• TRIB — Tributary
• NWWS — NOAA Weather Wire System

• RPLCS — Replaces
• UNSTDY — Unsteady
• MAY — Maysville
• NNWRN — North-Northwestern
• PDMT — Predominant
• TAMU — Tropical Aviation Meteorological Unit
• REPLS — Replaces
• MS — Minus
• UNUSBL — Unusable
• WKNG — Weakening
• HUD — Housing and Urban Development, U.S. Department of
• SSWLY — South-Southwesterly
• OHP — One-Hour Rainfall Rate
• AQI — Air Quality Statement
• BNTH — Beneath
• ENE — east-northeast
• IPVG — Improving
• RSTRS — Restricts
• PIBAL — pilot-balloon observation
• CHCS — Chances
• RVI — River Ice Statement
• YLSTN — Yellowstone
• SPRDS — Spreads
• CMFC — Coordinating METOC Forecast Center
• GDS — GeoMet Data Services, Inc.
• CS — Combined Shear
• CWA — County Warning Area
• RCVS — Receives
• XTND — Extend
• WNDS — Winds
• INTS — intense
• NIL — None
• USBL — Usable
• RDGG — Ridging
• SHARP — Skew-T Hodograph Analysis and Research Program
• ZFP — Zone Forecast Product
• WDSPRD — Widespread
• SHLD — SHieLD
• SRY — Secondary
• RLTV — Relative
• OCLD — Occlude
• PNS — Public Information Statement
• SIGMET — Significant Meteorlogical Information
• ASIST — Aviation Safety Investment Strategy Team
• METMF — Meteorological Mobile Facility
• SWAFS — Space Weather Analysis and Forecasting System
• HMT — Hydrometeorological Technicians
• RSIS — Rs Information Services, Inc.
• LIS — Lifted indices
• CLDNS — Cloudiness

• TRPCL — Tropical
• SA — Sand
• HIGH — HIGHLAND
• TRMTG — Terminating
• M — Mach number
• AFT — After
• PSH — Preliminary Tropical Storm Report
• TFS — Tactical Forecast System
• PRC — Planning and Research Corporation
• ROTG — Rotating
• TCM — Tropical Cyclone Forecasts/Advisory
• NAOS — North American Atmospheric Observing System
• WEA — Weather
• VAAC — Volcanic Ash Advisory Centers
• SDM — Station Duty Manual
• DKTS — Dakotas
• SWLG — Swelling
• PCD — Proceed
• SSERN — South-Southeastern
• LIVV — Lifted Index Vertical Velocity
• MCD — Mesoscale Discussion
• INTR — Interior
• TWEB — Transcribed Weather En route Broadcast
• TWEB — Transcribed Weather Broadcast
• STNR — Stationary
• RCHG — Reaching
• PMD — Prognostic Discussion
• VSBYDR — Visibility Decreasing Rapidly
• DPNS — Deepens
• NIDS — NEXRAD Information Dissemination Service
• NWSTG — National Weather Service Telecommunications Gateway
• SPS — Special (Weather) Statement
• SSWRN — South-Southwestern
• TDU — Techniques Development Unit
• DUC — Dense Upper Cloud
• XTRMLY — Extremely
• SLPG — Sloping
• CBS — Cumulonimbi
• MDS — Meteorological Distribution System
• FNTGNS — Frontogenesis
• AFCT — affect
• CCA — Corrected meteorological message
• FNTLYS — Frontolysis
• ESP — Extended Streamflow Prediction
• NPRS — Nonpersistent
• PIBALS — Pilot Balloon Reports
• CCLDS — Clear of Clouds
• STWDSR — Surface Transportation Weather Decision Support Requirements
• PRJMP — Pressure Jump
• HDFRZ — Hard Freeze

• WSR-88D — Weather Surveillance Radar - 1988 Doppler
• DCRD — Decreased
• NPSU — National Public Service Unit
• SHARS — Subtle Heavy Rainfall Signature
• PWS — Precipitable Waters
• CAPS — Center for Analysis and Prediction of Storms
• HWO — Severe Weather Potential Statement
• SWA — Severe Weather Analysis
• SHLW — Shallow
• CSDRBL — Considerable
• CSC — Combined Shear Contour
• SND — Sanderson
• MLTLVL — Melting Level
• SUPSDG — Superseding
• TUE — Tuesday
• ORGPHC — Orographic
• RADAT — RADiosonde Observation Data
• UPSTRM — Upstream
• IC — In-Cloud Lightning
• COR — Corrected/Correction
• CYCLGN — Cyclogenesis
• CSI — Critical Success Index
• SSELY — South-Southeasterly
• LO — Lower Order
• SWR — State Weather Roundup
• VSBYIR — Visibility Increasing Rapidly
• APPRS — Appears
• WIE — With Immediate Effect
• EPSCOR — Experimental Program for the Stimulation of Competitive Research
• SOO — Scientific Operations Officer
• DLTG — Deleting
• TCE — Tropical Cyclone Position Estimate
• MRF — Medium-Range Forecast Model
• CHC — Chance
• HUREP — Hurricane Report
• SB — Southbound
• SBSDNC — Subsidence
• MDT — Moderate
• DALGT — Day light
• PVLD — Prevailed
• TOFS — Tactical Observing & Forecasting System
• RVSG — Revising
• RVR — River Recreation Statement
• RMTN — Regional Meteorological Telecommunications Network
• CNVG — Converge
• SNOINCR — Snow increase
• SYNOP — Synoptic
• SMTHR — Smoother
• NCWD — National Convective Weather Diagnostic
• HLTP — Hilltop

• WSWWD — West-Southwestward
• ESS — Water Supply Outlook Product
• NPRA — National Performance Results Act
• STGR — Stronger
• G — Gust
• DU — Dust
• TNDCYS — Tendencies
• RCHS — Reaches
• THN — Thin
• UPSLP — Upslope
• LTLCG — Little Change
• WPLTO — Western Plateau
• VOMIT — VIL Of the Moment In Time
• PO — Dust devils
• FRMN — Formation
• RNFL — Rainfall
• WINDS — Weather Information and Display System
• FTHR — Further
• SOO — Scientific and Operations Officer
• SMA — Soil Moisture Accounting Model
• QPFSPD — Nmc Special Precipitation Discussion
• RDVLPG — Redeveloping
• ROB — Radar Coded Observation
• TRW — Thunderstorm
• MX — Mixed Type of Ice Formation
• EIF — Enhanced IFLOWS Format
• OPA — Opaque, white type of ice formation
• WBND — West Bound
• TWS — Tropical Weather Summary
• WKR — Weaker
• RDVLPMT — Redevelopment
• AMS — Air mass
• UKMET — United Kingdom Meteorological Agency
• IDS — International Data Service
• CSDR — Consider
• SFP — State Forecast Product
• SWS — Severe Weather Statement
• PPSN — Present Position
• PRSTS — Persists
• XTNDD — Extended
• TRKG — Tracking Corporation (OTC Bulletin Board [OTCBB])
• QPFERD — Nmc Excessive Rainfall Discussion
• EMWIN — Emergency Managers Weather Information Network
• CST — Coast
• XTNDG — Extending
• NIDS — NEXRAD Information Distribution Service
• UNSTL — Unsettle
• XPCG — Expecting
• HIER — Higher
• NSH — Nearshore Lake Forecast

• AWT — Awaiting Test
• POP — Precipitation Probability
• OCLDS — Occludes
• TNDCY — Tendency
• SMLR — Smaller
• KU — University of Kansas
• TACWX — Tactical weather
• PVLS — Prevails
• SRM — Storm Relative Mean Radial Velocity Map
• SWP — Severe Weather Probability
• UWNDS — Upper Winds
• MCDW — Monthly Climatic Data of the World
• MISG — Missing
• ENTR — Entire
• WSDDM — Weather Support to Deicing Decision Making
• VARN — Variation
• VRG — Veering
• DPR — Deeper
• SWRN — Southwestern
• PSG — Passage
• WNWRN — West-Northwestern
• SLGTLY — Slightly
• HIGH — High Core Threshold
• VSB — Visible
• NNERN — North-Northeastern
• THTND — Threatened
• SPF — Probability of Tropical Cyclone Conditions
• CVRS — Covers
• NWSO — National Weather Service Office
• WKST — Weakest
• NWFO — National Weather Service Forecast Office
• TSHWR — Thundershower
• SRR — Storm Relative Mean Radial Velocity Region
• WTSPTS — Waterspouts
• DWPNT — Dewpoint
• THKST — Thickest
• BATROP — Barotropic
• SA — Surface observation
• FIP — Forecast Icing Potential
• PTNS — Portions
• WSWRN — West-Southwestern
• CR — Composite Reflectivity
• ESE — East-southeast
• WWS — Severe Weather Watches
• RCMDS — Recommends
• G — Green time
• UNSATFY — Unsatisfactory
• RUF — Rough
• REP — Report
• DTRTS — Deteriorates

• MET — Meteorology
• FLS — River Flood Statement
• CNVTN — Convection
• SMTHST — Smoothest
• UNA — Unable
• MOS — Model Output Statistics applications
• QSTNRY — Quasistationary
• SUNYA — State University of New York, Albany
• WFOS — Weather Forecast Offices
• TSHWRS — Thundershowers
• OCR — Occurrence
• GFA — Graphical Area Forecast
• WSOM — National Weather Service Operations Manual
• QPFPFD — Ncep Precipitation Forecast Discussion
• PFD — QPF Discussion
• TAP — Transition Aviation Project
• WRMG — Warming
• TCP — Public Tropical Cyclone Advisory
• RLBL — Reliable
• SPKL — Sprinkle
• DS — Dust Storm
• ROTS — Rotates
• WSTCH — Wasatch Range
• NL — No layers
• TYP — Type of Aircraft
• SEB — South-eastbound
• PVLT — Prevalent
• SCC — Tropical Storm Summary
• HPC — Weather Prediction Center
• MET — Meteorological Teams
• LP — Low Precipitation
• USFS — U.S. Forest Service
• UN — Unable
• XPCS — Expects
• WER — WEAK ECHO REGION
• DSA — Special Tropical Disturbance Statement
• TRSN — Transition
• HIC — Hydrometeorological Information Center
• STI — Storm Tracking Information
• PLTO — Plateau
• SCSL — Standing lenticular stratocumulus
• SCS — Spectrum Width Cross Section
• EBND — East bound
• WRMFNTL — Warm Frontal
• VRS — Veers
• MOGR — Moderate, or Greater
• SNOTEL — Snow Telemetry
• TWO — Tropical Weather Outlook
• SQLN — Squall Line
• VVSTORM — model-based convection algorithm

• NOW — Short Term Forecast
• TL — Till
• TCU — tropical cyclone update
• N-AWIPS — National Centers-AWIPS
• REC — Recreation Report
• THP — Three-Hour Rainfall Rate
• SWWD — Southwestward
• JWIS — Joint Weather Impacts System
• SX — Stability Index
• TEND — Trend forecast
• TEN — Theta-e Index
• SLOR — Slower
• SLS — Watch Redefining Statement
• TS — Thunderstorm without precipitation
• TSQLS — Thundersqualls
• WRMR — Warmer
• SPA — Subtropical Cyclone Public Advisory

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