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Scientific & Educational >> Weather Abbreviations

Look through 2217 acronyms and abbreviations related to Weather:

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

• SUFLY — Sufficiently
• FYI — For Your Information
• GRT — Great
• UPS — United Parcel Service, Inc.
• GUI — Graphical User Interface (goo-ey)
• CONSHELF — Continental Shelf
• ASL — Above Sea Level
• MS — Mississippi
• NNNN — End of Message
• AL — Alabama
• AAL — Above Aerodrome Level
• ATA — Area Transportation Authority
• GPS — Global Positioning System (ex-NAVSTAR)
• CONTS — Continues
• ICAO — International Civil Aviation Organization
• CHG — Change
• AGL — Above Ground Level
• FAA — Federal Aviation Administration
• TNTV — Tentative
• CA — California
• SYS — System
• RVR — Runway Visual Range
• USAF — United States Air Force
• S — South
• MPH — Miles Per Hour
• BLDU — Blowing Dust (METAR Code)
• WWW — World Weather Watch
• Y2K — Year 2000
• FAR — Federal Aviation Regulation
• ACK — Acknowledge (telecommunications; Cf. NAK)
• DOD — United States Department of Defense
• WAC — World Aeronautical Chart
• NLT — Not Later Than
• FY — Fiscal Year
• EXTRAP — Extrapolate
• MD — Maryland
• SUPSD — Supersede
• VHF — Very High Frequency
• STD — Standard
• LA — Louisiana
• RQRD — Required
• APR — April River Airport, April River, Papua New Guinea
• BLDG — Building
• FWD — Forward
• DMG — Damage
• AK — Alaska
• GSA — U.S. General Services Administration
• KG — Kilogram
• CONUS — Continental United States (48 Contiguous States and DC)
• WILCO — Will Comply

• BHND — Behind
• MIL — Military
• C — Center
• DEC — December
• MSL — Mean Sea Level
• PTNL — Potential
• CM — Centimeter
• SMS — Synchronous Meteorological Satellite
• AGC — Automatic Gain Control
• SEQ — Sequence
• ATC — Air traffic control
• CFO — Communication Filing Officer
• INFO — Information
• MI — Michigan
• PC — Personal computer (host)
• CONT — Continue
• HTG — Heating
• NAB — Not Above
• AR — Arkansas
• SNOINCRG — Snow increasing
• CAVU — Ceiling And Visibility Unlimited
• CT — Connecticut
• ALT — Altitude
• E — East
• DTG — Date-Time Group
• KPA — kiloPascal (pressure above ambient (100 kPa = 1 atmosphere excess))
• MN — Minnesota
• NSF — National Sanitation Foundation
• NY — New York
• WX — Weather
• CAPE — Convective Available Potential Energy
• AMSL — Above Mean Sea Level
• PWR — Power
• AAAS — American Association for the Advancement of Science
• GND — Ground
• MO — Missouri
• N — North
• HDRAIN — An Hourly Digital Rainfall Product of the WSR-88D
• INCLS — Includes
• GF — Ground Fog
• BC — British Columbia
• UTC — Coordinated Universal Time
• SEC — Second
• FTE — Full-Time Employee
• LMT — Local Mean Time
• PA — Pennsylvania
• TN — Tennessee
• UT — Utah
• TSTMS — Thunderstorms
• HZ — cycles per second (hertz)

• LYRS — Layers
• NJ — New Jersey
• RI — Rhode Island
• KY — Kentucky
• IATA — International Air Transport Association
• FT — Feet
• CO — Colorado
• NATL — National
• NOV — November
• RFI — Radio Frequency Interference
• OH — Ohio
• SWLY — Southwesterly
• WV — West Virginia
• CW — Continuous Wave
• NOAA — National Oceanic and Atmospheric Administration (US)
• MOS — Model Output Statistics
• LAT — Latitude
• NM — Nautical Mile
• VT — Vermont
• SD — South Dakota
• MIN — Minimum
• OR — Oregon
• LVL — Level
• MA — Massachusetts
• NE — Nebraska
• DOH — Development and Operations Hydrologist
• CTGY — Category
• FROPA — Frontal Passage
• CFS — Cubic Feet per Second
• WI — Wisconsin
• AMT — Amount
• BLM — Bureau of Land Management of United States Department of the Interior
• ASD — Aircraft Situation Display
• OPMET — Operational Meteorological
• COORD — Coordinate
• NV — Nevada
• WMO — World Meteorological Organization (ICSU)
• NC — No Change
• AFDK — After Dark
• OFC — Office
• GEN — General Motors
• R — Right
• ACT — Active
• CONTD — Continued
• NAS — National Airspace System
• NEB — Nebraska
• NESDIS — National Environmental Satellite, Data, and Information Service
• NGT — Night
• ME — Maine
• MAY — May Department Stores Company

• W — West
• ETA — Eta model
• PM — post meridian
• SC — South Carolina
• SMRY — Summary
• STGST — Strongest
• IR — Infrared
• LTD — Limited
• Y — Yellow
• UFN — Until Further Notice
• JAN — January
• LTGCG — Lightning Cloud-to-Ground
• SNR — Signal-to-Noise Ratio
• VOL — Volume
• RFC — River Forecast Center
• CAT — Clear Air Turbulence
• CLR — Clear
• BM — Benchmarking
• PRF — Pulse Repetition Frequency
• MAX — Maximum
• CVR — Cover
• NEG — NEGative
• AZ — Arizona
• NS — Nova Scotia
• ACTV — Active
• DBL — Double
• PBL — Planetary Boundary Layer
• FLT — Flight
• ADJ — Adjacent
• LTR — Later
• PRODG — Producing
• UV — Ultraviolet (Light)
• NOTAM — Notice to Airmen
• RH — Relative Humidity
• DIST — Distance
• ND — North Dakota
• CLD — Cloud
• WADL — West African Disturbance Line
• R — Red
• KW — Kilowatt (one thousand watts) (measurement)
• RCVD — Received
• ETC — Et Cetera
• WIP — Work In Progress (process)
• USGS — United States Geological Survey (DOI)
• RCV — Receive
• PRIM — Primary
• FIS — Flight Information Service
• XPCD — Expected
• W — White
• ACPT — Accept

• HR — Hour
• CWT — Combat Weather Team
• VFR — Visual Flight Rule
• RTE — Route
• ADDS — Aviation Digital Data Service
• PTLY — Partly
• CRS — Course
• OCT — October
• SH — Showers
• HPC — Hydrometeorological Prediction Center
• PSN — Position
• BCH — Beach
• SO — Southern Oscillation
• TX — TEXAS
• SW — South West
• MT — Mountain
• INU — Inertial Navigation Unit
• MID — Middle
• ALSTG — Altimeter Setting
• FIG — Figure
• SMK — Smoke
• IL — Illinois
• GMDSS — Global Maritime Distress and Safety System (IMO)
• UPS — Uninterruptible Power Supply
• BL — Blowing (METAR descriptor)
• AVG — Average Voltage Gain
• EXER — Exercise
• AGRMT — Agreement
• MCW — Modulated Continuous Wave
• HSD — Heavy Snow Discussion
• ETD — Estimated Time of Departure
• INCL — Include
• AD — Aerodrome
• BRK — Break
• TSFRD — Transferred
• PERM — Permanent
• SML — Small
• NXT — Next
• WEF — With Effect From
• FVRBL — Favorable
• AUG — August
• CAT — Category (e.g. CAT-5 cable)
• POD — Probability Of Detection
• WO — Without
• PIXEL — Picture Element
• ARINC — Aeronautical Radio Incorporated
• ANS — Answer
• HJ — Sunrise to sunset
• PROD — Produce
• KS — Kansas

• B — Blue
• FSS — Flight Service Station
• POSLY — Positively
• PRESFR — Pressure Falling Rapidly
• OPR — Operator
• THRUT — Throughout
• ADR — Advisory Route
• DX — Duplex
• PVA — Positive Vorticity Advection
• PRIN — Principal
• VLCTYS — Velocities
• FL — Florida
• V — Velocity
• FD — Winds and Temperatures Aloft Forecasts
• SIG — Signature
• AFSS — Automated Flight Service Station
• MUCAPE — Most Unstable CAPE
• WY — Wyoming
• LST — Local Standard Time
• DC — District of Columbia
• TURBT — Turbulent
• ALQDS — All Quadrants
• NH — New Hampshire
• SQAL — Squall
• BR — Mist
• MED — Medium
• COE — Creek Corps of Engineers
• UNAVBL — Unavailable
• OK — Oklahoma
• VC — Vicinity
• FLD — Field
• MCS — Mesoscale Convective System
• NEGLY — Negatively
• METRO — Metropolitan
• NASA — National Aeronautics and Space Administration (US)
• ARTCC — Air Route Traffic Control Center
• PUGET — Puget Sound
• TAS — True Airspeed
• PW — Precipitable Water
• ISA — International Standard Atmosphere
• PDT — Product Development Team
• CNCLD — Canceled
• MT — Montana
• VAD — Velocity-Azimuth Display
• TELCON — Telephone Conversation
• NC — North Carolina
• ACLTG — Accelerating
• RPG — Radar Product Generator
• SFC — Surface
• LCTMP — Little change in temperature

• FU — Smoke
• IMPT — Important
• TC — Tropical Cyclone
• MOVD — Moved
• AC — Altocumulus
• SEP — September
• IA — Iowa
• FZRA — Freezing Rain (METAR Code)
• C — Celsius
• FZFG — Freezing Fog
• MEX — Mexico
• TAF — Terminal Aerodrome Forecast
• SPENES — Satellite precipitation estimate statement
• SS — Sandstorm
• CDA — Command and Data Acquisition
• OTLK — Outlook
• TCU — Towering Cumulus
• OML — Operations Manual Letter
• WV — Water Vapor
• LRG — Large
• RDA — Radar Data Acquisition
• BLDS — Builds
• PD — Period
• CDM — Collaborative Decision Making
• LEN — Length
• NM — New Mexico
• LLWAS — Low Level Wind Shear Alert System
• X — Cross
• MICRO-ART — Microcomputer Automatic Radiotheodolite Master Control Unit
• TMW — Tomorrow
• WTSPT — Waterspout
• VOR — VHF Omnidirectional Range
• Q — Quadrature
• FFW — Flash Flood Warning
• LI — Lifted Index
• ALTHO — Although
• RGT — Right
• MLW — Mean Low Water (nautical Charts)
• SAT — Saturday
• VOLMET — Meteorological information for aircraft in flight
• PY — Spray
• YR — Your
• IMC — Instrument Meteorological Conditions
• MTNS — Mountains
• HGT — Height
• RPT — Repeat
• WINTEM — Forecast upper wind and temperature for aviation
• INS — Inertial Navigation System
• SNGL — Single
• POS — Positive

• ACLTS — Accelerates
• LCL — Local
• DE — DELAWARE
• OWS — Operational Weather Squadron
• VIP — Video Integrator and Processor
• SLP — Slope
• WSR-57 — A NWS Weather Surveillance Radar designed in 1957
• BINOVC — Breaks in overcast
• LTL — Little
• NE — North-East
• WTR — Water
• MPC — Marine Prediction Center
• AFTN — Afternoon
• HZ — Haze (METAR Code)
• AFD — Area Forecast Discussion
• TKE — Turbulent Kinetic Energy
• LGTD — Lighted
• VR — Veer
• COND — Conditions
• CDC — Climate Diagnostics Center
• ELEV — Elevator
• LYRD — Layered
• NCAR/RAP — National Center for Atmospheric Research/Research Applications Program
• SRH — Storm-relative Helicity
• ABV — Above
• AP — Airport
• NEC — Necessary
• FZDZ — Freezing Drizzle
• ADVCTN — Advection
• R — Required
• NBAA — National Business Aviation Association, Inc.
• ATTM — At This Time
• FLW — Follow
• FCST — Forecast
• MVFR — Marginal Visual Flight Rules
• FFS — Flash Flood Statement
• BA — Braking Action
• WDLY — Widely
• DCP — Data Collection Platform
• PIREP — Pilot (weather) Report
• APRX — Approximate
• SHWR — Shower
• TOP — Cloud Top
• GR — Hail
• DMSHG — Diminishing
• SHSN — Snow Showers (METAR Code)
• TURB — Turbulence
• WBZ — Wet-Bulb Zero
• BLSN — Blowing Snow (METAR Code)
• FM — From

• IFR — Instrument Flight Rules
• SCNDRY — SECONDARY
• SHFT — Shift
• WSR-74 — A NWS Weather Surveillance Radar designed in 1974
• CU — Cumulus
• BCM — Become
• WSW — West-southwest
• CD — Climatological Data
• MNM — Minimum
• T — Thunderstorm (weather reports)
• WSFOS — Weather Service Forecast Offices
• BND — Bound
• APCHG — Approaching
• WB — Weather Bureau
• NTFYD — Notified
• WI — Within
• SHRTLY — Shortly
• THRU — Through
• ARPT — Airport
• SMG — Space Flight Meteorology Group
• CISK — Conditional Instability of the Second Kind
• FFG — Flash Flood Guidance
• FIR — Flight Information Region
• TRMM — Tropical Rainfall Measuring Mission (US-Japan)
• LSR — Local Storm Report
• AMDT — Amendment
• CONTLY — Continually
• ATCSCC — Air Traffic Control System Command Center
• BWER — Bounded Weak-Echo Region
• RVSD — Revised
• BRN — Bulk Richardson Number
• CRNR — Corner
• PRT — Pulse Repetition Time
• CNFDC — Confidence
• RCVG — Receiving
• NOSIG — No Significant Change
• OTR — Other
• INTMD — Intermediate
• XBT — expendable bathythermograph (oceanography)
• ROFOR — Route Forecast
• TYPH — Typhoon
• MLLW — Mean Lower Low Water (nautical Charts)
• PHYS — Physical
• AS — Altostratus
• ADVYS — Advisories
• AOB — At or Below
• EST — Estimate
• CI — Cirrus
• EPRI — Electric Power Research Institute (US)
• DDS — Data Distribution System

• WB — Westbound
• CIG — Ceiling
• ASOS — Automated Surface Observing System
• SN — Snow
• T — Temperature
• UIR — Upper Flight Information Region
• BCFG — Fog Patches
• VV — Vertical Velocity
• NSSL — National Severe Storms Laboratory
• AWIPS — Advanced weather Interactive Processing System (NOAA)
• UNL — Unlimited
• RA — Rain
• WSWLY — West-Southwesterly
• BFR — Before
• TOR — Tornado Warning
• WRNGS — Warnings
• COMPARD — Compared
• NELY — Northeasterly
• AIRMET — AIRman's METeorological Information
• WNW — West-northwest
• MDFY — Modify
• GOES — Geostationary Operational Environmental Satellite
• SWE — Snow Water Equivalent
• INTL — International
• HDG — Heading
• NVA — Negative Vorticity Advection
• HRS — Hours
• ID — Idaho
• NAMIS — NATO Automated Meteorological Information System
• SMPDBK — The Simplified Dam Break Model
• RESP — Response
• SBSDD — Subsided
• WNWLY — West-northwesterly
• UCP — Unit Control Position
• TDL — Techniques Development Laboratory
• DFNT — Definite
• NCO — NCEP Central Operations
• DEG — Degree
• SXNS — Sections
• FLUC — fluctuation
• ADA — Advisory Area
• ACC — Area Control Center
• FA — Area Forecast
• PUP — Principal User Processor (NEXRAD)
• RPRT — Report
• NNW — North-Northwest
• DCS — Data Collection System (NOAA Polar Orbiting Satellites)
• F — Degrees Fahrenheit
• TRPCD — Tropical Continental
• ALERT — Automated Local Evaluation in Real Time

• CRC — Circle
• INTMT — Intermittent
• LLJ — Low Level Jet stream
• VIL — Vertically-Integrated Liquid water
• DIR — Directory
• WMC — World Meteorological Center
• THK — Thick
• HWY — Highway
• MCC — Mesoscale Convective Complex
• PNHDL — Panhandle
• RPTS — Repeats
• CB — Cumulonimbus
• OTRW — Otherwise
• RHI — Range-Height Indicator
• TEMP — Temperature
• NNICE — Neural Network for Icing
• VSBY — Visibility
• DFNTLY — Definitely
• FAR — False Alarm Ratio
• STFRM — Stratiform
• ST — Stratus
• LIFR — Low Instrument Flight Rules
• G — Green
• SUGG — Suggesting
• THKNS — Thickness
• WIBIS — Will Be Issued
• WRN — Western
• BKN — Broken
• LAM — Logical acknowledgment
• WSHFTS — Wind Shifts
• CUFRA — Cumulus Fractus
• DDS — Domestic Data Service
• TSB — Technical Support Branch
• CS — Cirrostratus
• TNGT — Tonight
• STN — Station
• SUPSDS — Supersedes
• HI — High
• DES — Descend
• REPL — Replace
• PAC — Pacific Region
• POSS — Possible
• OVR — Over
• Z — Zulu (Greenwich mean time)
• INTSFYS — Intensifies
• API — Antecedent Precipitation Index
• ITCZ — Intertropical Convergence Zone (of Seawater)
• EXTRM — Extreme
• THKR — Thicker
• NWS — National Weather Service (formerly U.S. Weather Bureau)

• PRVDD — Provided
• WUD — Would
• AWHPS — Area Wide Hydrologic Prediction System
• SHFTD — Shifted
• SMWHT — Somewhat
• DVRG — Diverge
• SHUD — should
• SPCLY — Especially
• RAOB — Radiosonde Observation
• RECON — Reconnaissance
• NC — National Center
• VRISL — Vancouver Island, BC
• VMC — visual meteorological conditions
• RQRS — Requires
• ROML — Regional Operations Manual Letter
• ADDN — Addition
• ANLYS — Analysis
• NRCS — Natural Resources Conservation Service
• ADM — Administrative Messages
• REQ — Request
• SE — Southeast
• IP — Ice Pellets
• KLYR — Smoke Layer Aloft
• PRSTNC — Persistence
• RGN — Region
• NCEP — National Centers For Environmental Prediction (form. NMC; NWS Center)
• IAO — In And Out
• MST — Mosta
• OAC — Oceanic Area Control Center
• NAV — Navigator
• GV — Ground Visibility
• MDL — Model
• BLSA — Blowing Sand (METAR Code)
• BLO — Below
• LTGCC — Lightning Cloud-to-Cloud
• RDR — Radar
• RVA — River Summary
• THR — Threshold
• SHWRS — Showers
• BT — Bathythermograph
• ESPINIT — ESP Initialization Program
• DEP — Depart
• CNCL — Cancel
• AVN — Aviation Model
• SWEAT INDEX — Severe WEAther Threat Index
• SFERICS — Atmospherics
• YDA — Yesterday
• VAL — Valley
• AWDS — Automated Weather Distribution System
• CSI — Conditional Symmetric Instability

• EMC — Environmental Modeling Center
• UVV — Upward Vertical Velocity
• NCAR — National Center for Atmospheric Research (US)
• DMNT — Dominant
• COMET — Cooperative Program for Operational Meteorology, Education and Training
• NLY — Northerly
• HAZ — Hazard
• FCSTR — Forecaster
• EXTN — Extension
• ID — IDentifier
• AZM — Azimuth
• UNKN — Unknown
• NHC — United States National Hurricane Center
• AOPA — Aircraft Owners and Pilots Association
• GFS — Global Forecast System
• CHSPK — Chesapeake
• PRES — Pressure
• OCS — Oklahoma Climatological Survey
• SHFTG — Shifting
• DSIPTN — Dissipation
• DTRTD — Deteriorated
• RMNG — Remaining
• BLKT — Blanket
• CAVOK — conditions
• ROC — Rate of Climb
• ZN — Zone
• OFP — Occluded Frontal Passage
• AMIS — Automated Meteorological Information System
• PRSNT — Present
• TROFS — Troughs
• BLD — Build
• ADQT — Adequate
• RSNS — Reasons
• SDF — Second-Day Feet
• PRECD — Precede
• INP — If Not Possible
• DZ — Drizzle
• CDB — Computing Development Branch
• BDRY — Boundary
• APST — Aviation Products and Services Team
• RWY — Runway
• EL — Equilibrium Level
• VLY — Valley
• RTRND — Returned
• FPM — Feet Per Minute
• AVBL — available
• DLY — Daily
• CAEM — Commission for Aeronautical Meteorology (WMO)
• SG — Snow Grains (weather reports)
• JAN — January

• CNTRS — Centers
• METAR — Meteorological Terminal Aviation Routine Weather Report
• AWT — Awaiting Trial
• LLP — Lightning Location and Protection, Inc
• CPBL — Capable
• SRN — Southern
• NMC — National Meteorological Center (US)
• PRBLTY — Probability
• QPFHSD — Ncep Heavy Snow Discussion
• THKNG — Thickening
• LONG — Longitude
• CNL — Cancel
• COV — Cover
• INOP — Inoperative
• MNLY — Mainly
• TF — Terminal Forecast
• MIC — Meteorologist-In-Charge
• MAR — March
• JUN — June
• CNTRD — Centered
• CC — Cirrocumulus
• TDWR — Terminal Doppler Weather Radar
• SXN — Section
• GAMA — General Aviation Manufacturers Association's
• MB — Millibar(s)
• FC — Funnel Cloud
• SSWWD — South-Southwestward
• ATLC — Atlantic
• NSSFC — National Severe Storms Forecast Center
• HSF — High Seas Forecasts
• THSD — Thousand
• VISSR — visible and infrared spin scan radiometer (GOES)
• CANAM — Canadian/American
• NW — North West
• PRSTNT — Persistent
• MNT — Monitor
• SM — Statute Mile
• EAA — Experiment Aircraft Association
• TSFRS — Transfers
• IMDTLY — Immediately
• AFOS — Automation of Field Operations and Services
• GFDL — Geophysical Fluid Dynamics Laboratory (NOAA US)
• AFWA — Air Force Weather Agency
• RTRNG — Returning
• SPKLS — Sprinkles
• AHOS-S — Automatic Hydrologic Observing System - Satellite
• INVOF — In vicinity of
• LTST — Latest
• NAT — North Atlantic
• RSG — Rising

• MORENET — Missouri Research & Education Network
• CNDN — Canadian
• JUL — July
• GA — Georgia
• AMOS — Automated Meteorological Observing System
• NCDC — National Climatic Data Center
• FEB — February
• EV — every
• APRXLY — Approximately
• RMK — Remark
• BCKG — Backing
• BNDRY — Boundary
• AFWIN — Air Force Weather Information Network
• USMC — United States Marine Corporation
• CRCLN — Circulation
• LOT — Local Office Team
• CNTR — Center
• CEM — Civil Emergency Message
• ACCAS — Altocumulus Castellanus
• HN — Sunset to sunrise
• RIOGD — Rio Grande
• AOB — Aviation Operations Branch
• VLYS — Valleys
• RTD — Delayed
• RUC — Rapid Update Cycle
• SWPC — Space Weather Prediction Center
• XPLOS — Explosive
• LGT — Light
• MWO — Meteorological Watch Office
• FST — First
• CADAS — Centralized Automated Data Acquisition System
• QUAD — Quadrant
• OVRN — Overrun
• RTN — Return
• DRFT — Drift
• CCL — Convective Condensation Level
• LOC — Local
• ZNS — Zones
• ERN — Eastern
• CNCLG — Cancelling
• ACSL — Altocumulus Standing Lenticular
• INCR — Increase
• MAP — Mean Areal Precipitation
• AAA — Amended meteorological message
• FAH — Fahrenheit
• SARPS — Standards and Recommended Practices
• TRNSP — Transport
• SKED — Schedule
• SBSD — Subside
• KT — Knots

• GEMPAK — General Environmental Meteorological Package
• ABNDT — Abundant
• MOD — moderate dysplasia
• ICGIC — Icing in Clouds
• FT — Terminal Forecast
• SLD — Supercooled Large Drops
• STF — Stratiform
• NWP — Numerical Weather Prediction
• SKC — Sky Clear
• LCTD — Located
• TOPS — Tops
• OSO — Office of Systems Operations
• ARR — Arrive
• PRBLY — Probably
• FREQ — Frequency
• SEWD — Southeastward
• WS — Wind Shear
• EHI — Energy Helicity Index
• AOML — Atlantic Oceanographic and Meteorological Laboratory (Miami, Florida) (ERL)
• FAM — Familiar
• VAS — VISSR Atmospheric Sounder
• DVV — Downward Vertical Velocity
• UNSTLD — Unsettled
• ACCID — Notification of an aircraft accident
• RAFS — Regional Analysis and Forecasting System
• PUP — Principle User Processor
• FORNN — Forenoon
• HVYST — Heaviest
• CONS — Continuous
• WWD — Westward (weather reports)
• FRQ — Frequent
• ALUTN — Aleutian
• ACARS — ARINC Communications Addressing and Reporting System
• DSND — Descend
• CONTDVD — Continental Divide
• LN — Line
• VOR — VHF Omnidirectional Radio Range
• PRESRR — Pressure Rising Rapidly
• DNSTRM — Downstream
• NRN — Northern
• INSTL — Install
• ADVY — Advisory
• DLT — Delete
• RCMDD — Recommended
• UAB — Until Advised By
• THNG — Thinning
• EC — Environment Canada
• SPC — Storm Prediction Center
• CNTY — County
• BLKTG — Blanketing

• SHEFPARS — A software decoder for SHEF Data
• AGN — Again
• DVRGG — Diverging
• RW — Rain Shower
• SRND — Surround
• APCH — approach
• IMPR — Improve
• SQ — Squall
• SHFTS — Shifts
• DAPM — The Data Acquisition Program Manager
• WEFAX — Weather Facsimile
• GAI — Global Atmospherics Inc
• CIP — Current Icing Potential
• EB — Eastbound
• REQSTD — Requested
• LLWS — Low Level Wind Shear
• INTSFYG — Intensifying
• PSBLTY — Possibility
• ABNML — Abnormal
• RCM — Radar Coded Message
• SPECI — Aviation selected special weather report
• SCA — Small Craft Advisory
• CRCLC — Circulate
• RAFC — Regional Area Forecast Center
• NAWAU — National Aviation Weather Advisory Unit
• PRST — Persist
• AGFS — Aviation Gridded Forecast System
• DIFAX — Digital Facsimile
• KMH — Kilometers per hour
• RSNG — Reasoning
• OPN — Open
• ZR — Freezing Rain
• RDC — Reduce
• LDG — Landing (aviation)
• UDDF — Up and Down Drafts
• CDFNT — Cold Front
• ACYC — Anticyclone
• NOHRSC — The National Operational Hydrologic Remote Sensing Center
• AMPG — Amplifying
• PRI — Primary
• SLD — Solid
• DPNG — Deepening
• SUP — Supply
• OAT — Outside Air Temperature
• ADVCTD — Advected
• ADL — Additional
• DSF — Day-Second Feet
• SAW — Preliminary Notification of Forthcoming Watch
• INPR — in progress
• WA — Western Approaches

• BECMG — Becoming
• TWIP — Terminal Weather Information for Pilots
• PRBL — Probable
• UPDFTS — Updrafts
• SR — Sunrise
• SBLI — Lifted Index calculated using surfaced based parcel
• PRSNTLY — Presently
• ACTVTY — Activity
• NSW — Nil Significant Weather
• CLEICEIO — Great Lakes 5-Day Ice Outlook
• DTRTG — Deteriorating
• ATAD — Automated Telephone Answering Device
• RCMDG — Recommending
• GEO — Geographic
• WMSCR — Weather Message Switching Center Replacement
• MDFYD — Modified
• UCAR — University Corporation for Atmospheric Research
• RSTRG — Restricting
• SATFY — Satisfactory
• ITWS — Integrated Terminal Weather System
• AAWU — Alaskan Aviation Weather Unit
• TSTM — Thunderstorm
• CIN — Convective Inhibition
• ADVN — Advance
• HTC — The Hydrometeorological Training Council
• RQR — Require
• DSIPTG — Dissipating
• EPV — Equivalent Potential Vorticity
• ALTM — Altimeter
• BLDUP — Buildup
• CNTRLN — Centerline
• PCPN — Precipitation
• QFE — Atmospheric Pressure At Aerodrome Elevation
• NCWX — No Change in Weather
• CNVTV — Convective
• YKN — Yukon
• SUB — Substitute
• AWN — Automated Weather Network
• LEWP — Line Echo Wave Pattern
• AFT — Afternoon
• ADRNDCK — Adirondack
• AIRMET — Airman's Meteorological advisory
• PRECDS — Precedes
• SLOLY — Slowly
• AIV — Aviation Impact Variable
• PROGD — Forecasted
• AHOS-T — Automatic Hydrologic Observing System - Telephone
• RCHD — Reached
• SBCAPE — CAPE calculated using a Surface based parcel
• METOC — Meteorological and Oceanographic

• DMSHS — Diminishes
• COM — Communications Society
• ASSOCD — Associated
• DSIPT — Dissipate
• ENHNC — Enhance
• ARTYMET — Artillery Meteorological
• SWO — Staff Weather Officers
• WND — Windsor
• ADZ — Advise
• INC — in cloud
• ACLT — Accelerate
• TVS — Tornado Vortex Signature
• MDCRS — Meteorological Data Communications and Reporting System
• BRG — Branching
• VRY — Very
• AVARS — Aircraft Vertical Acceleration Reporting System
• FRZN — Frozen
• DRFTG — Drifting
• PRECDG — Preceding
• DISRE — Disregard
• TIP — Until past
• TT — Total Totals
• SVG — Serving
• DNSLP — Downslope
• RTRNS — Returns
• CSW — Committee for Space Weather
• SYNS — Synopsis
• FSL — Forecast Systems Laboratory (a NOAA ERL)
• NFDRS — National Fire Danger Rating System
• BASE — Cloud base
• EXTD — Extend
• CSTAR — Collaborative Science, Technology and Applied Research
• VER — Vertical
• CONTRAILS — Condensation Trails
• DISRED — Disregarded
• BRM — Barometer
• SGFNTLY — Significantly
• GOES — Geostationary Orbiting Environmental Satellite
• RCMD — Recommend
• WAA — Warm Air Advection
• EFF — Experimental Forecast Facility
• FLRYS — Flurries
• TMPRYLY — Temporarily
• WFO — Weather Forecast Office
• MDS — Minimum Discernible Signal
• DPTH — Depth
• LGRNG — Long Range
• PTCHY — Patchy
• DEGS — Degrees
• FCSTD — Forecasted

• DAMBRK — The Dam Break Forecasting Model
• FQT — Frequent
• RVS — River Statement
• KM — Kilometers to Miles
• MTN — Mountain
• DMSH — Diminish
• KMARD — Kansas Modernization and Restructuring Demonstration
• OM — Office of Meteorology
• TRMTD — Terminated
• USWB — United States Weather Bureau
• SIGMET — Significant Meteorological Advisory
• RAM — Regional Area Meteorologist
• RFD — Rear Flank Downdraft
• TSFR — Transfer
• MHKVLY — Mohawk Valley
• HIFOR — High Level Forecast
• COT — At the Coast
• RUFLY — Roughly
• VVP — Volume Velocity Processing
• SLW — Slow
• INTCNTL — Intercontinental
• RMNDR — Remainder
• CAA — Cold Air Advection
• EUMETSAT — European Organization for the Exploitation of Meteorological Satellites
• MAREP — Marine Reporting Program
• RVF — River Forecast
• FNTL — Frontal
• TT — Teletype
• FRM — Form
• VFY — Verify
• BLW — Below
• QUE — Quebec
• AFCTD — Affected
• CASC — Central Administrative Support Center
• NR — Number
• AFCTG — Affecting
• LVLS — Levels
• ETA — Greek letter, describes a constant height coordinate model system
• CLEGLFGLS — Great Lakes Marine Synopsis
• BLKTS — Blankets
• THU — Thursday
• QBI — Compulsory IFR flight
• WSHFT — Wind Shift
• HADS — Hydrometeorological Automated Data System
• ANBURS — Alphanumeric Backup Replacement System
• CMPLX — Complex
• OBSC — Obscure
• LCTN — Location
• SUBTRPCL — Subtropical
• FEW — Few

• LTGCCCG — Lightning cloud-to-cloud cloud-to-ground
• SD — Storm Data
• UPR — Upper
• DSTC — Distance
• CARIB — Caribbean
• BRF — Brief
• NNELY — North-northeasterly
• FG — Fog Gun
• AFW — Air Force Weather
• TSFRG — Transferring
• IMT — immediate
• WIST — Weather Information for Surface Transportation
• IWEDA — Integrated Weather Effects Decision Aid
• VFYG — Verifying
• STBLTY — Stability
• INDCG — Indicating
• RVSS — Revises
• AFTN — Air Force Television Network
• CFP — Cold Front Passage
• NOPAC — Northern Pacific
• DIF — Diffuse
• XNG — Crossing
• VIS — Visible
• SWOMCD — SELS Mesoscale Discussion
• BLZD — Blizzard
• ALF — Aloft
• HVY — Heavy
• BRKG — Breaking
• HMD — Hemispheric Map Discussion
• WAFS — World Area Forecast System
• ESA — Electronic Systems Analyst
• TSNT — Transient
• CAFTI — Committee on Analysis and Forecast Techniques Implementation
• NAP — NCEP Advisory Panel
• SNFLK — Snow flake
• ACPY — Accompany
• RE — Regard
• SRNDG — Surrounding
• RVS — Revise
• TIL — Until
• ERL — Environmental Research Laboratories (absorbed By OAR Or NOAA Research)
• EXC — Except
• RCH — Reach
• IC — Ice Crystals
• EXTRAPD — Extrapolated
• LRGR — Larger
• APRNTLY — Apparently
• SEPN — Separation
• ECMWF — European Center for Medium-Range Weather Forecasting model
• ICGIP — Icing in Precipitation

• LFM — Limited Fine Mesh
• RLTVLY — Relatively
• COMPAR — Compare
• VLNT — Violent
• FRZ — Freeze
• KBDI — Keetch-Byram Drought Index
• RPDLY — Rapidly
• STGLY — Strongly
• INSTF — Intensify
• ENELY — East-northeasterly
• CLEGLSCLE — Great Lakes Storm Summary
• DVRGNC — Divergence
• CNTRL — Central
• COMPARS — Compares
• RCKYS — Rockies
• BRKHIC — Breaks in higher clouds
• NSC — Nil Significant Cloud
• RQRG — Requiring
• LMTG — Limiting
• DISCG — Discontinuing
• KFRST — Killing Frost
• BYD — Beyond
• CYC — Cyclonic
• SRNDS — Surrounds
• SHRTWVS — Shortwaves
• CUF — Cumuliform
• RCRDS — Records
• ESTAB — Establish
• DSTBLZ — Destabilize
• ENRT — En Route
• WL — will
• PSND — Positioned
• LO — Low
• MRGLLY — Marginally
• IMPLS — Impulses
• DTRT — Deteriorate
• SAWRS — Supplementary Aviation Weather Reporting Station
• SWODY2 — Day 2 Convective Outlook
• GLFMEX — Gulf of Mexico
• CLEGLOCLE — Great Lakes Storm Outlook
• ADVCTG — Advecting
• EXCLV — Exclusive
• FLG — Flashing
• OBS — Observe
• GRTLY — Greatly
• AWC — Aviation Weather Center
• PROC — Procedure
• NCDB — NCEP Computer Development Branch
• RPTG — Repeating
• FCSTG — Forecasting

• MIDN — Midnight
• ASSOCN — Association
• DVLPMT — Development
• SGFNT — Significant
• DBNET — Distributed Brokered Networking
• INCRS — Increases
• PEN — Peninsula
• APRNT — Apparent
• RTA — Remote to AFOS
• LKLY — Likely
• INTVL — Interval
• NNWLY — North-northwesterly
• NEXRAD — Next-Generation Weather Radar (NWS)
• OTP — On Top
• SST — Sea surface temperature
• OCLN — Occlusion
• OTW — Owning The Weather
• OUBD — Outbound
• MDFYG — Modifying
• SWODY1 — Day 1 Convective Outlook
• FNCTN — Function
• LONGL — Longitudinal
• WTU — Weather Technology Unit
• QG — An abbreviation for quasigeostrophic
• SPD — Speed
• SELY — Southeasterly
• PL — Ice Pellets or Sleet
• LTGCW — Lightning Cloud-to-Water
• ADVNG — Advancing
• DVRGS — Diverges
• NTFY — Notify
• VA — Virginia Ash
• FRZG — Freezing
• GRTST — Greatest
• HPD — Hourly Precipitation Data
• FRMG — Forming
• CNVGG — Converging
• APSG — After passing
• MLLI — Mean Layer Lifted Index
• MOVG — Moving
• WFP — Warm Front Passage
• NAVPACMETOCCEN — Naval Pacific Meteorology and Oceanography Center, Pearl Harbor, Hawaii
• VRB — Variable
• TRML — Terminal
• FZ — Freezing
• TROF — Trough
• ONSHR — Onshore
• TAWS — Tactical Acquisition Weather Software
• OVNGT — Overnight
• THDR — Thunder

• ART — Automatic Radio Theodolite Master Control Unit As
• OVC — Overcast (METAR Code)
• BNDRYS — Boundaries
• JMA — Japanese Meteorological Agency
• ARAM — Aviation, Range and Aerospace Meteorology
• NMBRS — Numbers
• ESEWD — East-Southeastward
• LMTS — Limits
• SIERNEV — Sierra Nevada
• NLDN — National Lightning Detection Network
• ASH — Assistant Service Hydrologist
• PIREP — Pilot Report
• CTSKLS — Catskills
• SRNDD — Surrounded
• ICG — Icing
• INCRGLY — Increasingly
• ALGHNY — Allegheny
• PS — Plus
• BRKSHRS — Berkshires
• MBRFC — Missouri Basin River Forecast Center
• NEW ENG — New England
• MOVMT — Movement
• CLDS — Clouds
• PRECDD — Preceded
• LTGIC — Lightning in Cloud
• IMDT — Immediate
• NNE — North-North-East
• FPO — Flood Potential Outlook
• LEVEL — Level
• SLY — Southerly
• PSBLY — Possibly
• AC — Anticipated Convection Outlook
• LK — Lake
• MCIDAS — Man-computer Interactive Data Access System
• RMN — Remain
• IIDA — Integrated Icing Diagnostic Algorithm
• AWOS — Automated Weather Observation System
• RPRTS — Reports
• TNTVLY — Tentatively
• INSTBY — Instability
• OU — University of Oklahoma
• SPRDG — Spreading
• NWSRFS V5.0 — National Weather Service River Forecast Model Version 5
• INTMTLY — Intermittently
• CTWFC — CINC Target Weather Forecast Center
• OVTK — Overtake
• ESELY — East-southeasterly
• HLYR — Haze Layer Aloft
• TAFB — Tropical Analysis and Forecast Branch
• ULJ — Upper-Level Jet

• OCLDD — Occluded
• INTSFYD — Intensified
• HDSVLY — Hudson Valley
• RPLC — Replace
• INDCD — Indicated
• OFF — Offshore Forecast
• FCSTS — Forecasts
• DVLPD — Developed
• NEXRAD — Next Generation Weather Radar
• AOA — At or Above
• CDFNTL — Cold frontal
• FILG — Filling
• CLRG — Clearing
• EMBD — Embedded in a layer
• CIGS — Ceilings
• VCTR — Vector
• CPC — Climate Prediction Center (NWS Center)
• AMP — Amplify
• ELNGTD — Elongated
• CDFS — Cloud Depiction and Forecast System
• VRT MOTN — Vertical Motion
• EXPCD — Expected
• MDLS — Models
• GRID — Processed meteorological data in the form of grid point values
• SPRD — Spread
• EXPCG — Expecting
• ROBEX — Regional OPMET bulletin exchange
• MLOS — Microwave Line-Of-Site
• SMTH — Smooth
• ETA — estimating arrival
• ROTD — Rotated
• SASK — Saskatchewan
• ISCS — International Satellite Communications System
• CBMAM — Cumulonimbus Mammatus
• AMD — amend
• STLT — Satellite
• APPRG — Appearing
• FNTS — Fronts
• VIL — Vertically Integrated Liquid
• VCNTY — Vicinity
• DPND — Deepened
• DWOPER — Dynamic Wave Routing Model
• PSG — Passing
• SVRL — Several
• INTRMTRGN — Intermountain Region
• FMT — Format
• DNR — Department of Natural Resources
• SCTR — Sector
• EVAD — Extended Velocity
• EXTRMLY — Extremely

• AMPLTD — Amplitude
• DVLPG — Developing
• SUF — Sufficient
• ISOL — Isolate
• EXCLVLY — Exclusively
• CNCLS — Cancels
• INDCS — Indicates
• LFTG — Lifting
• DMSHD — Diminished
• PARL — Parallel
• DFCLTY — Difficulty
• AWSS — Aviation Weather Sensor System
• CLKWS — Clockwise
• DSIPTD — Dissipated
• DSTBLZN — Destabilization
• ERYR — Earlier
• IPV — Improve
• INBD — Inbound
• INTRP — Interrupt
• TSSN — Thundersnow
• SMTM — Sometime
• HND — Hundred
• FAWS — Flight Advisory Weather Service
• HURCN — Hurricane
• FAX — Facsimile Transmission
• LDM — Local Data Manager
• OCNLY — Occasionally
• SHRTWV — Shortwave
• EWD — Eastward
• ROD — Rate Of Descent
• CNVGNC — Convergence
• MSTR — Moisture
• WED — Wednesday
• RPRTD — Reported
• MPL — Max Parcel Level
• NRW — Narrow
• AGRS — Agrees
• LTG — Lightning
• ESERN — East-Southeastern
• DSTBLZG — Destabilizing
• APCHS — Approaches
• NRLY — Nearly
• USBR — US Bureau of Reclamation
• WDSPR — Widespread
• RS — Receiver station
• ADVIS — Headwater Advisory Program
• GEOREF — Geographical reference
• ENERN — East-northeastern
• WLY — Westerly
• ENDG — ending

• FRI — Friday
• APLCNS — Appalachians
• WND — Wind
• EPD — Extended Forecast Discussion
• CLEICEFBO — Great Lakes Ice Outlook for the Opening of Navigation
• LMTD — Limited
• LGWV — Long Wave
• NATA — National Air Transportation Assoc.
• WARP — Weather and Radar Processor
• HEL — Helicopter
• WCM — Warning Coordination Meteorologist
• DRFTD — Drifted
• DSNDG — Descending
• GSTS — Gusts
• MAN — Manitoba
• DCRGLY — Decreasingly
• LPATS — Lightning Position And Tracking System
• PRVD — Provide
• ROSA — Remote Observing System Automation
• FIC — Flight Information Center
• PPINE — Plan Position Indicates No Echoes
• SHRT — Short
• HV — Have
• THRFTR — Thereafter
• INCLG — Including
• CHGD — Changed
• FLWG — Following
• ASAPTRAN — The software component of ASA
• SPLNS — Southern Plains
• BGN — Begin
• LYR — Layer
• OCFNT — Occluded Front
• DOM — Domestic
• OSV — Ocean Station Vessel
• GRTLKS — Great Lakes
• RTVS — Real Time Verification System
• INCRG — Increasing
• OMTNS — Over Mountains
• SNBNK — Snow bank
• DGNLLY — Diagonally
• HVYR — Heavier
• CGEN — Convective Sigmet Generation
• AMS — American Meteorology Society
• NEXRAD — NEXt generation of weather RADar
• DELMARVA — Delaware-Maryland-Virginia
• INTSFCN — Intensification
• M — Mesocyclone
• TROP — Tropopause
• NAVMETOCCOM — Naval Meteorology and Oceanography Command
• FOS — FAMILY OF SERVICES

• DURN — Duration
• ET — Electronic Technician
• CCSL — Cirrocumulus Standing Lenticular
• VRBL — Variable
• GLFALSK — Gulf of Alaska
• DIGG — Digging
• DISREG — Disregarding
• DP — Deep
• TCNTL — Transcontinental
• MTW — Mountain Waves
• INTSTY — Intensity
• PROB — probability
• GRDLY — Gradually
• ACLTD — Accelerated
• HRL — The Hydrological Research Laboratory
• STDY — Steady
• ERY — Early
• LRGLY — Largely
• NWSTC — National Weather Service Training Center
• MULTILVL — Multi-level
• FCEXEC — A component of the NWSRFS FCST Program
• COMPARG — Comparing
• APLCN — Appalachian
• THTNS — Threatens
• WAFC — World Area Forecast Center
• EXTDD — Extended
• PDS — Periods
• PC-GRIDDS — Pc-Gridded Interactive Display and Diagnostic System
• WDI — Wind Direction Indicator
• RMNS — Remains
• BLKHLS — Black Hills
• CNTYS — Counties
• RSTR — Restrict
• METAR — Meteorological Aviation Report
• I — See inphase
• DSIPTS — Dissipates
• VCY — Vicinity
• NERN — Northeastern
• SPD — speed of pupillary dilation
• SUG — Suggest
• SS — Sunset
• DWPNTS — Dewpoints
• ENHNCG — Enhancing
• ACRS — Across
• RL — Report Leaving
• PVL — Prevail
• IFLOWS — The Integrated Flood Observing and Warning System
• INDC — indicate
• ZL — Freezing Drizzle
• MARD — Modernization and Restructuring Demonstration

• INTST — Intensity
• ATDTDCS — Automated Tone Dial Telephone Data Collection System
• WKDAY — Weekday
• WRS — Worse
• PVLG — Prevailing
• EVE — Evening
• EXP — Expect
• EXTSV — Extensive
• DSTBLZD — Destabilized
• SERN — Southeastern
• CAAM — Computer Assisted Artillery Meteorology
• ELSW — Elsewhere
• THTNG — Threatening
• RMND — Remained
• SP — Snow Pellets
• LKS — Lakes
• FQTLY — Frequently
• ASC — Aviation Services Coordinator
• ASC — Ascent to
• LRGST — Largest
• NCWF — National Convective Weather Forecast
• BAMS — Bulletin of the American Meteorological Society
• STAGN — Stagnation
• CLEICEFBO — Great Lakes Freeze-Up Outlook
• STNS — Stations
• CHGS — Changes
• FRST — Frost
• ENEWD — East-northeastward
• NMRS — Numerous
• DGNL — Diagonal
• MCIDAS — Man Computer Interactive Data Acquisition System
• URG — Urgent
• NWLY — Northwesterly
• WIDA — Weather Impact Decision Aids
• DNDFTS — Downdrafts
• CLA — Clear type of ice formation
• TR — Track
• BDA — Bermuda Island
• REPLG — Replacing
• DWNDFTS — Downdrafts
• IOS — Integrated Operational Services
• ASB — Aviation Support Branch
• EXTDS — Extends
• LV — Leaving
• ENHNCD — Enhanced
• OPS-II — Operational Weather Squadron Production System II
• DFUS — Diffuse
• AMDG — Amending
• STMS — Storms
• WK — Weak

• VFYD — Verified
• MEGG — Merging
• DFCLT — Difficult
• IOVC — In Overcast
• MSTLY — Mostly
• ARFOR — Area Forecast
• XS — Atmospherics
• ZE — Equivalent Radar Reflectivity
• NFLD — Newfoundland
• STP — Storm Total Precipitation
• WSP — Weather Systems Processor
• OUTFLO — Outflow
• WRMST — Warmest
• ARCUS — Arc Cloud
• TDO — Tornado
• TRNSPG — Transporting
• ENHNCS — Enhances
• TPC — Tropical Prediction Center
• SPDS — Speeds
• MAY — Mayaro
• SBND — South bound
• SPOT — Spot Wind
• PRVDS — Provides
• MESO — Mesoscale
• NBND — Northbound
• CWF — Combat Weather Flight
• XPC — Expect
• ADVS — Advisory Service
• SUPG — Supplying
• T — Thunder
• THD — Thunderhead
• GRTR — Greater
• AHD — Ahead
• TWI — Twilight
• WINT — Winter
• OHD — Overhead
• NML — Normal
• NCCF — NOAA Central Computer Facility
• MLCAPE — Mean Layer CAPE
• DSCNT — Descent
• WIMS — Weather Information Management System
• INDEF — Indefinite
• TOVC — Top of Overcast
• GNDFG — Ground Fog
• ETIM — ELAPSED TIME
• RSTRD — Restricted
• GENLY — Generally
• MOVS — Moves
• AGRD — Agreed
• SBSDS — Subsides

• ENHNCMNT — Enhancement
• MMS-P — Meteorological Measuring System-Profiler
• FVT — Forecast Verification Tool
• SAMEX — Storm and Mesoscale Ensemble Experiment
• WRS — Weather Reconnaissance Squadron
• OFCM — Office of the Federal Coordinator for Meteorological Services and Supporting Research
• DVLPS — Develops
• WKEND — Weekend
• PQPF — probabilistic quantitative precipitation forecast
• INVRN — Inversion
• PGTSND — Puget Sound
• SFD — STATE FORECAST DISCUSSION
• TFU — Theater Forecast Unit
• NADIN — National Airspace Data Interchange Network
• WRNG — Warning
• UVM — Upward Vertical Motion
• RES — Reserve
• UVVS — Upward Vertical Velocities
• MNLND — Mainland
• SQSN — Snow Squalls
• KCFB — Kansas City Federal Building
• DISCD — Discontinued
• CWSU — Center Weather Service Unit
• NGM — Nested Grid Model
• FCMSSR — Federal Committee for Meteorological Services and Supporting Research
• WVS — Waves
• OBST — Obstacle
• MON — Monday
• LWR — Lower
• SSW — South Southwest
• ICE — icing
• THNR — Thinner
• RGNS — Regions
• UNRSTD — Unrestricted
• FNT — Front
• CNVTVLY — Convectively
• ATWIS — Advanced Transportation Weather Information System
• XTRM — Extreme
• CCLKWS — Counter-Clockwise
• RGL — Regional Model
• DRFTS — Drifts
• PPI — Plane Position Indicator
• SUPS — Supplies
• BTL — Between layers
• PLVL — Present Level
• RPD — Rapid
• WRMFNT — Warm Front
• ENCTR — Encounter
• DIV — Divert
• RSN — Reason

• SHEF — Standard Hydrologic Exchange Format
• APPR — Appear
• REPLD — Replaced
• RAWS — Remote Automatic Weather Station
• ENSO — El Niño and Southern Oscilation
• DMGD — Damaged
• RE — Recent
• BRKS — Breaks
• EXTDG — Extending
• PE — Ice pellets
• U/S — Unserviceable
• AMDAR — Automatic Meteorological Data And Reporting
• VWP — Velocity Azimuth Display Wind Profile
• HLF — Half
• GS — Small hail and snow pellets
• NOWCAST — Short Term Forecast
• OCNL — Occasional
• CASCDS — Cascades
• ATMU — AIR TRANSPORTABLE MOBILE UNIT
• SAO — Surface observation
• DEV — Deviation
• RPRTG — Reporting
• BRS — Branches
• ELNGT — Elongate
• MULI — Most Unstable Lifted Index
• WID — Width
• ER — Here
• PRVDG — Providing
• HWVR — However
• RPLCD — Replaced
• SLO — Slow
• QN — Question
• SCT — Scattered
• FDR — Fire Danger Rating
• ALTA — Alberta
• VORT — Vorticity
• RPLCG — Replacing
• CBOFS — Chesapeake Bay Oceanographic Forecasting System
• STG — Strong
• DSTBLZS — Destabilizes
• LDADS — Local Data Acquisition and Dissemination System
• BAJA — Baja California
• SMOOS — Shipboard Meteorological and Oceanographic Observing Sensor
• OFSHR — Offshore
• SWI — Showalter Index
• RSMC — Regional/Specialized Meteorological Centers
• SWB — South-Westbound
• AMDD — Amended
• RCS — Reflectivity Cross Section
• UNRELBL — Unreliable

• EXCP — Except
• OCLDG — Occluding
• SLT — Sleet
• FLG — Falling
• DMCC — DOE Meteorological Coordinating Council
• RDVLP — Redevelop
• HDWND — Head Wind
• MMS — METEOROLOGICAL MEASURING SYSTEM
• DVLP — Develop
• SCND — Second
• NWRN — Northwestern
• JTSTR — Jet Stream
• STNRY — Stationary
• MDTLY — Moderately
• ISOLD — Isolated
• SVR — Severe
• NMBR — Number
• PROGS — Forecasts
• ADVCTS — Advects
• DCR — Decrease
• VA — Volcanic Ash
• NS — Nimbostratus
• CAWIS — Committee for Automated Weather Information Systems
• RAMSDIS — RAMM Advanced Meteorological Satellite Demonstration and Interpretation System
• CPHC — Central Pacific Hurricane Center
• MULT — Multiple
• MTU — Metric units
• SEL — Severe Thunderstorm Watch, Tornado Watch
• STBL — Stable
• TWRG — Towering
• DUR — Duration
• SSHP — Site Specific Hydrologic Prediction System
• ET — Echo Tops
• STM — Storm
• LN — Line Network
• CONTG — Continuing
• JCTN — Junction
• SIMUL — Simultaneous
• NMOC — National Meteorological Operations Centre
• HSA — Hydrologic Service Area
• HPA — Hectapascal
• RR — Report Reaching
• WNWWD — West-Northwestward
• FLN — National Flood Summary
• DSNDS — Descends
• LAN — Inland
• NBRHD — Neighborhood
• GOM — Global Ocean Model
• BPAA — Business Pilots Aircraft Association
• QPF — Quantitative Precipitation Forecast

• GLFCAL — Gulf of California
• SUN — Sunday
• CVRG — Covering
• MRTM — Maritime
• IFFDP — International Flight Folder Documentation Program
• UNSBL — Unseasonable
• FIAS — Flight Information Advisory Service
• BGNS — Begins
• SCTD — Scattered
• NB — NorthBound
• ADVCT — Advect
• TMPRY — Temporary
• GTG — Graphical Turbulence Guidance
• HYR — Higher
• LGTR — Lighter
• IMPL — Impulse
• CHGG — Changing
• MRGL — Marginal
• SSE — South-Southeast
• UNSTBL — Unstable
• ALG — Along
• WETM — Weather Team
• IWRS — Improved Weather Reconnaissance System
• INCRD — Increased
• TPG — Topping
• RAG — Ragged
• HCVIS — High Clouds Visible
• SLGT — Slight
• CWS — Combat Weather Squadron
• PSBL — Possible
• BFDK — Before Dark
• HRZN — Horizon
• PWO — Public Severe Weather Outlook
• CNIF — Calibration Network Information Files
• VGF — Virtual Graphics File
• REQS — Requests
• OCRS — Occurs
• EFCT — Effect
• RGD — Ragged
• THNST — Thinnest
• NESDIS/SAB — National Environmental Satellite, Data and Information Service/Satellite Analysis Branch
• EMERG — Emergency
• VFYS — Verifies
• INLD — Inland
• OSD — Office of Systems Development
• ESTS — Estimates
• MWAVE — Mountain Wave Algorithm
• XCP — Except
• VLNTLY — Violently
• EXPC — Expect

• DURG — During
• OCWWS — Office of Climate, Water and Weather Services
• WSFO — Weather Service Forecast Office
• FFA — Flood Frequency Analyses
• RESTR — Restrict
• FROSFC — Frontal Surface
• NEWD — Northeastward
• SNW — Snow
• UNREL — Unreliable
• FG — Foggia
• PLNS — Plains
• SUPR — Superior
• DRG — During
• QTP — Quality Through Partnership
• DWSW — Deployable Weather Satellite Workstation
• RCRD — Record
• DFRS — Differs
• WKNG — Weakening
• R — Reduction
• UKMETO — United Kingdom Meteorological Office
• INTSFY — Intensify
• FRWF — Forecast Wind Factor
• CG — Cloud-Ground Lightning
• CRP — Critical Rainfall Probability
• NAVTEX — Navigational Telex
• USWRP — United States Weather Research Program
• VLCTY — Velocity
• CRNRS — Corners
• FOUS — Forecast Output United States
• LSQ — Line Squall
• SPECIAL — Special Meteorological Report
• NWB — North-westbound
• BGNG — Beginning
• NNEWD — North-Northeastward
• SC — Stratocumulus (cloud formation)
• TEMPO — Temporary
• LWRG — Lowering
• MXD — Mixed
• NAWPC — National Aviation Weather Program Council
• SMW — Special Marine Warning
• DRZL — Drizzle
• VDUC — VAS Data Utilization Center
• MC — Meteorological Codes
• NWWS — NOAA Weather Wire System
• MST — Meteorological Support Teams
• SELS — SEvere Local Storms Unit
• UNSTDY — Unsteady
• CWF — Coastal Marine Forecasts
• RPLCS — Replaces
• WRM — Warm

• GRAD — Gradient
• NNWRN — North-Northwestern
• VCS — Velocity Cross Section
• WKN — Weaken
• REPLS — Replaces
• DSNT — Distant
• UNUSBL — Unusable
• NNWWD — North-Northwestward
• BD — Blowing Dust
• MS — Minus
• COOR — Co-ordinate
• NWR — NOAA Weather Radio
• SSWLY — South-Southwesterly
• CVRD — Covered
• ESF — Flood Potential Outlook
• YLSTN — Yellowstone
• BRKSHR — Berkshire
• SNWFL — Snowfall
• NWSEO — National Weather Service Employees Organization
• RVI — River Ice Statement
• NACA — National Advisory Committee on Aeronautics
• GLFSTLAWR — Gulf of St. Lawrence
• MOV — Move
• UNEC — UnNECessary
• WST — Weather Support Team
• PSCZ — Puget Sound Convergence Zone
• CAPPI — CONSTANT ALTITUDE PPI
• NOWS — NVG Operations Weather Software
• STFR — Stratus Fractus
• WDSPRD — Widespread
• SAOS — Surface Observations
• GRDL — Gradual
• SRY — Secondary
• SDM — Senior Duty Meteorologist
• RMTN — Regional Meteorological Telecommunications Network
• FFA — Flood
• SIGMET — Significant Meteorlogical Information
• METMF — Meteorological Mobile Facility
• HOL — Holiday
• TAMU — Tropical Aviation Meteorological Unit
• OCRG — Occurring
• ROT — Rotate
• LIS — Lifted indices
• CSTL — Coastal
• TFS — Tactical Forecast System
• M — Mach number
• BCMG — Becoming
• BNTH — Beneath
• VSA — By Visual Reference to the Ground
• BCMS — Becomes

• TRBL — Trouble
• DNWND — Down wind
• SAP — As soon as possible
• LWRD — Lowered
• ENE — east-northeast
• CS — Combined Shear
• RTRN — Return
• SRRS — Systems Record Retention System
• DCRG — Decreasing
• OVTKG — Overtaking
• SEV — Severe
• TSIP — Thundersleet
• GDS — GeoMet Data Services, Inc.
• DLA — Delay
• ETC — Echo Tops Contour
• SSERN — South-Southeastern
• CW — Cloud-Water Lightning
• OVTKS — Overtakes
• MCD — Mesoscale Discussion
• SPRL — Spiral
• INCLD — Included
• HIC — Hydrologist In Charge
• ZFP — Zone Forecast Product
• HUD — Housing and Urban Development, U.S. Department of
• TRIB — Tributary
• SSEWD — South-Southeastward
• NWP — Numerical Weather Predication
• DLAD — Delayed
• DPNS — Deepens
• SHLD — SHieLD
• RLTV — Relative
• SSWRN — South-Southwestern
• NWSH — National Weather Service Headquarters
• PNS — Public Information Statement
• ASMD — As amended
• MDS — Meteorological Distribution System
• XTRMLY — Extremely
• HMT — Hydrometeorological Technicians
• SNST — Sunset
• CWA — Center Weather Advisory - CWSU
• LINUX — UNIX-like computer operating system
• AFT — After
• SA — Sand
• HIGH — HIGHLAND
• TOFS — Tactical Observing & Forecasting System
• STWDSR — Surface Transportation Weather Decision Support Requirements
• AQI — Air Quality Statement
• TDA — Today
• PRJMP — Pressure Jump
• ESNTL — Essential

• NAOS — North American Atmospheric Observing System
• NWSTG — National Weather Service Telecommunications Gateway
• USACE — Unites States Army Corps of Engineers
• PIBAL — pilot-balloon observation
• METMFR — Meteorological Mobile Facility Replacement
• TURBC — Turbulence
• NWD — Northward
• RHINO — RHI not operative
• CMFC — Coordinating METOC Forecast Center
• MLTLVL — Melting Level
• ARSI — Atmospheric Research System, Inc.
• TUE — Tuesday
• XTND — Extend
• VCOT — VFR Conditions on Top
• SIGWX — Significant Weather
• LIVV — Lifted Index Vertical Velocity
• NIL — None
• RADAT — RADiosonde Observation Data
• TWEB — Transcribed Weather Broadcast
• STNR — Stationary
• VSBYDR — Visibility Decreasing Rapidly
• TDU — Techniques Development Unit
• LTLCG — Little Change
• SPS — Special (Weather) Statement
• ASIST — Aviation Safety Investment Strategy Team
• EMWIN — Emergency Managers Weather Information Network
• APPRS — Appears
• TRMT — Terminate
• SWAFS — Space Weather Analysis and Forecasting System
• PROG — Forecast
• SSELY — South-Southeasterly
• FRMN — Formation
• SOO — Scientific Operations Officer
• ITT — Information Technology Team
• MAY — Maysville
• FNTGNS — Frontogenesis
• VAAC — Volcanic Ash Advisory Centers
• TRPCL — Tropical
• NIDS — NEXRAD Information Distribution Service
• SLPG — Sloping
• RSIS — Rs Information Services, Inc.
• DLTG — Deleting
• PO — Dust devils
• PDMT — Predominant
• TCE — Tropical Cyclone Position Estimate
• PIBALS — Pilot Balloon Reports
• FNTLYS — Frontolysis
• AFCT — affect
• SB — Southbound
• SBSDNC — Subsidence

• TRMTG — Terminating
• CCLDS — Clear of Clouds
• RGLR — Regular
• GICG — Glaze Icing
• PVLD — Prevailed
• RVR — River Recreation Statement
• TRMTS — Terminates
• WSR-88D — Weather Surveillance Radar - 1988 Doppler
• IPVG — Improving
• CHCS — Chances
• CLRS — Clears
• PWS — Precipitable Waters
• SWD — Southward
• DISC — Discontinue
• EMBDD — Embedded
• SWLG — Swelling
• SYNOP — Synoptic
• SPRDS — Spreads
• WSWWD — West-Southwestward
• SUPSDG — Superseding
• RCVS — Receives
• HLSTO — Hailstones
• NIDS — NEXRAD Information Dissemination Service
• CYCLGN — Cyclogenesis
• IC — In-Cloud Lightning
• RCHG — Reaching
• TNDCYS — Tendencies
• GSTY — Gusty
• THTN — Threaten
• HLS — Hurricane Local Statement
• TWR — Tactical Weather Radar
• VSBYIR — Visibility Increasing Rapidly
• OCRD — Occurred
• OCLD — Occlude
• QPFERD — Nmc Excessive Rainfall Discussion
• DUC — Dense Upper Cloud
• CAPS — Center for Analysis and Prediction of Storms
• HP — High Precipitation
• UNSTL — Unsettle
• EPSCOR — Experimental Program for the Stimulation of Competitive Research
• PTNLY — Potentially
• MRF — Medium-Range Forecast Model
• CCA — Corrected meteorological message
• FTHR — Further
• NPRS — Nonpersistent
• HSB — Hydrologic Systems Branch in the Office of Hydrology
• SMA — Soil Moisture Accounting Model
• RVSG — Revising
• QPFSPD — Nmc Special Precipitation Discussion
• DMGG — Damaging

• WEA — Weather
• HDFRZ — Hard Freeze
• CNVG — Converge
• RSTRS — Restricts
• SHARS — Subtle Heavy Rainfall Signature
• OVRNG — Overrunning
• SNOINCR — Snow increase
• TSRA — Thunderstorm with rain
• TCM — Tropical Cyclone Forecasts/Advisory
• SDM — Station Duty Manual
• SHLW — Shallow
• SND — Sanderson
• DNS — Dense
• ARND — Around
• CSC — Combined Shear Contour
• NCWD — National Convective Weather Diagnostic
• HLTP — Hilltop
• MRNG — Morning
• ORGPHC — Orographic
• DCRS — Decreases
• PCD — Proceed
• INTS — intense
• G — Gust
• INTR — Interior
• SHARP — Skew-T Hodograph Analysis and Research Program
• PMD — Prognostic Discussion
• CSI — Critical Success Index
• WPLTO — Western Plateau
• UPSLP — Upslope
• LO — Lower Order
• TRKG — Tracking Corporation (OTC Bulletin Board [OTCBB])
• CLDNS — Cloudiness
• HUREP — Hurricane Report
• AWT — Awaiting Test
• CHC — Chance
• WINDS — Weather Information and Display System
• PSH — Preliminary Tropical Storm Report
• ROB — Radar Coded Observation
• RDVLPG — Redeveloping
• MX — Mixed Type of Ice Formation
• MDT — Moderate
• DCRD — Decreased
• WBND — West Bound
• RDVLPMT — Redevelopment
• TWDS — Towards
• ROTG — Rotating
• CSDRBL — Considerable
• HWO — Severe Weather Potential Statement
• PVLS — Prevails
• AHOS — Automatic Hydrologic Observing System

• NPRA — National Performance Results Act
• MCDW — Monthly Climatic Data of the World
• IDS — International Data Service
• ESS — Water Supply Outlook Product
• STGR — Stronger
• WNDS — Winds
• WTRS — Waters
• SFP — State Forecast Product
• UPSTRM — Upstream
• COR — Corrected/Correction
• XTNDD — Extended
• VRG — Veering
• SUNYA — State University of New York, Albany
• RCHS — Reaches
• THN — Thin
• XTNDG — Extending
• SLGTLY — Slightly
• TNDCY — Tendency
• OHP — One-Hour Rainfall Rate
• OCLDS — Occludes
• WKNS — Weakens
• PRIND — Present indications are
• EIF — Enhanced IFLOWS Format
• WKR — Weaker
• THTND — Threatened
• SMLR — Smaller
• CWA — County Warning Area
• AMS — Air mass
• UWNDS — Upper Winds
• PPSN — Present Position
• PRC — Planning and Research Corporation
• RDGG — Ridging
• TWEB — Transcribed Weather En route Broadcast
• MESO — Mesoscale Convective Unit
• DWPNT — Dewpoint
• SWR — State Weather Roundup
• WFOS — Weather Forecast Offices
• DPR — Deeper
• CST — Coast
• VARN — Variation
• SWRN — Southwestern
• RNFL — Rainfall
• BATROP — Barotropic
• SA — Surface observation
• WNWRN — West-Northwestern
• WSWRN — West-Southwestern
• CR — Composite Reflectivity
• PTNS — Portions
• ESP — Extended Streamflow Prediction
• SOO — Scientific and Operations Officer

• NSH — Nearshore Lake Forecast
• SUGS — Suggests
• WWS — Severe Weather Watches
• TRW — Thunderstorm
• NNERN — North-Northeastern
• NPSU — National Public Service Unit
• OPA — Opaque, white type of ice formation
• ERD — Excessive Rainfall Discussion
• SWA — Severe Weather Analysis
• NWSO — National Weather Service Office
• TACWX — Tactical weather
• DKTS — Dakotas
• WKST — Weakest
• SMTHR — Smoother
• SRM — Storm Relative Mean Radial Velocity Map
• UKMET — United Kingdom Meteorological Agency
• TSHWR — Thundershower
• MET — Meteorology
• MISG — Missing
• CSDR — Consider
• WSDDM — Weather Support to Deicing Decision Making
• PRSTS — Persists
• QSTNRY — Quasistationary
• ENTR — Entire
• THKST — Thickest
• TSHWRS — Thundershowers
• FIP — Forecast Icing Potential
• KU — University of Kansas
• VOMIT — VIL Of the Moment In Time
• HIER — Higher
• TAP — Transition Aviation Project
• POP — Precipitation Probability
• TCP — Public Tropical Cyclone Advisory
• PSG — Passage
• MOS — Model Output Statistics applications
• ESE — East-southeast
• PLTO — Plateau
• RLBL — Reliable
• VSB — Visible
• UNSATFY — Unsatisfactory
• TWS — Tropical Weather Summary
• G — Green time
• DS — Dust Storm
• CVRS — Covers
• SWP — Severe Weather Probability
• GFA — Graphical Area Forecast
• SMTHST — Smoothest
• SRR — Storm Relative Mean Radial Velocity Region
• LP — Low Precipitation
• WTSPTS — Waterspouts

• WIE — With Immediate Effect
• OCR — Occurrence
• WSOM — National Weather Service Operations Manual
• QPFPFD — Ncep Precipitation Forecast Discussion
• PFD — QPF Discussion
• WRMG — Warming
• TRSN — Transition
• HIC — Hydrometeorological Information Center
• STI — Storm Tracking Information
• HPC — Weather Prediction Center
• HIGH — High Core Threshold
• VRS — Veers
• SPKL — Sprinkle
• RUF — Rough
• SPF — Probability of Tropical Cyclone Conditions
• REP — Report
• WSTCH — Wasatch Range
• NL — No layers
• TYP — Type of Aircraft
• ROTS — Rotates
• SEB — South-eastbound
• PVLT — Prevalent
• FLS — River Flood Statement
• CNVTN — Convection
• SCC — Tropical Storm Summary
• DU — Dust
• UNA — Unable
• USBL — Usable
• SCS — Spectrum Width Cross Section
• USFS — U.S. Forest Service
• UN — Unable
• XPCS — Expects
• EBND — East bound
• CBS — Cumulonimbi
• WRMFNTL — Warm Frontal
• MET — Meteorological Teams
• MOGR — Moderate, or Greater
• SCSL — Standing lenticular stratocumulus
• SNOTEL — Snow Telemetry
• RCMDS — Recommends
• NWFO — National Weather Service Forecast Office
• XPCG — Expecting
• TL — Till
• TCU — tropical cyclone update
• N-AWIPS — National Centers-AWIPS
• DSA — Special Tropical Disturbance Statement
• DALGT — Day light
• SX — Stability Index
• SQLN — Squall Line
• DTRTS — Deteriorates

• JWIS — Joint Weather Impacts System
• SWS — Severe Weather Statement
• NOW — Short Term Forecast
• WER — WEAK ECHO REGION
• VVSTORM — model-based convection algorithm
• TEND — Trend forecast
• TWO — Tropical Weather Outlook
• SWWD — Southwestward
• SLOR — Slower
• SLS — Watch Redefining Statement
• TS — Thunderstorm without precipitation
• REC — Recreation Report
• TEN — Theta-e Index
• THP — Three-Hour Rainfall Rate
• WRMR — Warmer
• SPA — Subtropical Cyclone Public Advisory
• TSQLS — Thundersqualls

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