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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
• ACCUM — Accumulate
• Z DR — Differential Reflectivity
• DLTD — Deleted
• ABT — About
• M2/S2 — Meters squared per second squared
• OPS — Operations
• FTP — File Transfer Protocol
• F SCALE — See Fujita Scale
• B- — Convective Inhibition
• D-MAWDS — Digital Marine Weather Dissemination System
• FIRAV — First Available
• ACFT — Aircraft
• ASAP — As Soon As Possible (pronounced AY-sap)
• T. D. — Tropical Depression
• NBFR — Not Before
• FAA/AWR — Federal Aviation Administration/Aviation Weather Research Division
• T.S. — Tropical Storm
• FLRY — Flurry
• KOCTY — Smoke Over City
• VIP — Very Important Person
• DATANET — Hydrologic Data Network Analysis Software
• OBSCD — Obscured
• SACSMA — Sacramento Soil Moisture Accounting Model
• G-AIRMET — Graphical Airmet
• LCLY — Locally
• PLS — Please
• RAOBS — Radiosonde Observations
• RF — Radio Frequency
• N-TFS — New Tactical Forecast System
• NTSB — US National Transportation Safety Board
• LABRDR — Labrador
• FAA/ARW — Federal Aviation Administration/Aviation Requirements - Weather Group
• TACMET-MOD — Tactical Meteorological Observing System Modification
• OBSCG — Obscuring
• WAMPS — Weather Automated Mission Planning Software
• BACLIN — Baroclinic
• FEMA — Federal Emergency Management Agency
• SUFLY — Sufficiently
• DATACOL — The Software System that supports RFC gateway functions
• MSG — Message
• CONSHELF — Continental Shelf
• DABRK — Daybreak
• FYI — For Your Information
• GRT — Great

• ASL — Above Sea Level
• MOA — Memorandum Of Agreement
• ATTN — Attention
• AAL — Above Aerodrome Level
• RFP — Request For Proposal
• ATA — Area Transportation Authority
• USAF — United States Air Force
• BTWN — Between
• RVR — Runway Visual Range
• FAR — Federal Aviation Regulation
• ICAO — International Civil Aviation Organization
• AGL — Above Ground Level
• NNNN — End of Message
• AL — Alabama
• S — South
• Y2K — Year 2000
• WAC — World Aeronautical Chart
• MPH — Miles Per Hour
• BLDU — Blowing Dust (METAR Code)
• FAA — Federal Aviation Administration
• GUI — Graphical User Interface (goo-ey)
• GPS — Global Positioning System (ex-NAVSTAR)
• VHF — Very High Frequency
• WWW — World Weather Watch
• SEQ — Sequence
• CA — California
• TNTV — Tentative
• SYS — System
• SMS — Synchronous Meteorological Satellite
• C — Center
• RQRD — Required
• MD — Maryland
• SNOINCRG — Snow increasing
• NAB — Not Above
• DEC — December
• ACK — Acknowledge (telecommunications; Cf. NAK)
• E — East
• CM — Centimeter
• KG — Kilogram
• MSL — Mean Sea Level
• HDRAIN — An Hourly Digital Rainfall Product of the WSR-88D
• STD — Standard
• CONTS — Continues
• GF — Ground Fog
• MIL — Military
• DOD — United States Department of Defense
• LA — Louisiana
• SUPSD — Supersede
• WILCO — Will Comply
• CAPE — Convective Available Potential Energy

• HTG — Heating
• CONUS — Continental United States (48 Contiguous States and DC)
• ATC — Air traffic control
• NSF — National Sanitation Foundation
• APR — April River Airport, April River, Papua New Guinea
• ALT — Altitude
• AK — Alaska
• AGC — Automatic Gain Control
• CAVU — Ceiling And Visibility Unlimited
• DOH — Development and Operations Hydrologist
• MI — Michigan
• INFO — Information
• N — North
• MS — Mississippi
• BLDG — Building
• MN — Minnesota
• WX — Weather
• FY — Fiscal Year
• CT — Connecticut
• NOV — November
• BC — British Columbia
• AMSL — Above Mean Sea Level
• MOS — Model Output Statistics
• DMG — Damage
• SEC — Second
• PWR — Power
• ETA — Eta model
• AR — Arkansas
• CW — Continuous Wave
• RFI — Radio Frequency Interference
• ACT — Active
• GND — Ground
• R — Right
• NAS — National Airspace System
• ASD — Aircraft Situation Display
• MO — Missouri
• NY — New York
• PA — Pennsylvania
• NC — No Change
• PC — Personal computer (host)
• EXTRAP — Extrapolate
• FT — Feet
• AAAS — American Association for the Advancement of Science
• LAT — Latitude
• LTGCG — Lightning Cloud-to-Ground
• Y — Yellow
• DTG — Date-Time Group
• GSA — U.S. General Services Administration
• PTNL — Potential
• UT — Utah

• NATL — National
• KY — Kentucky
• OH — Ohio
• TN — Tennessee
• W — West
• HZ — cycles per second (hertz)
• LVL — Level
• CO — Colorado
• CONT — Continue
• CHG — Change
• RI — Rhode Island
• SC — South Carolina
• VT — Vermont
• OR — Oregon
• RCVD — Received
• NESDIS — National Environmental Satellite, Data, and Information Service
• JAN — January
• NJ — New Jersey
• MA — Massachusetts
• NM — Nautical Mile
• AMT — Amount
• CONTD — Continued
• FTE — Full-Time Employee
• NE — Nebraska
• CFS — Cubic Feet per Second
• PBL — Planetary Boundary Layer
• CAT — Clear Air Turbulence
• RFC — River Forecast Center
• FLT — Flight
• NLT — Not Later Than
• CLD — Cloud
• PRF — Pulse Repetition Frequency
• NOAA — National Oceanic and Atmospheric Administration (US)
• ADJ — Adjacent
• LMT — Local Mean Time
• SD — South Dakota
• WV — West Virginia
• R — Red
• SNR — Signal-to-Noise Ratio
• NV — Nevada
• W — White
• FIS — Flight Information Service
• COORD — Coordinate
• NOTAM — Notice to Airmen
• NGT — Night
• VFR — Visual Flight Rule
• CFO — Communication Filing Officer
• VOL — Volume
• WI — Wisconsin
• NEB — Nebraska

• CWT — Combat Weather Team
• UTC — Coordinated Universal Time
• ME — Maine
• HPC — Hydrometeorological Prediction Center
• LTR — Later
• IR — Infrared
• UPS — United Parcel Service, Inc.
• ETC — Et Cetera
• FROPA — Frontal Passage
• CRS — Course
• SH — Showers
• SWLY — Southwesterly
• OPMET — Operational Meteorological
• MT — Mountain
• GEN — General Motors
• HSD — Heavy Snow Discussion
• OCT — October
• FIG — Figure
• RCV — Receive
• RH — Relative Humidity
• MCW — Modulated Continuous Wave
• BL — Blowing (METAR descriptor)
• PRIM — Primary
• MIN — Minimum
• XPCD — Expected
• FWD — Forward
• CVR — Cover
• STGST — Strongest
• IATA — International Air Transport Association
• AD — Aerodrome
• BLM — Bureau of Land Management of United States Department of the Interior
• VLCTYS — Velocities
• BM — Benchmarking
• V — Velocity
• FSS — Flight Service Station
• UV — Ultraviolet (Light)
• MID — Middle
• AGRMT — Agreement
• NS — Nova Scotia
• PRESFR — Pressure Falling Rapidly
• ND — North Dakota
• ADR — Advisory Route
• BRK — Break
• IL — Illinois
• B — Blue
• SML — Small
• NXT — Next
• KPA — kiloPascal (pressure above ambient (100 kPa = 1 atmosphere excess))
• PSN — Position
• PERM — Permanent

• MAX — Maximum
• HR — Hour
• AFSS — Automated Flight Service Station
• SO — Southern Oscillation
• AUG — August
• SMK — Smoke
• LYRS — Layers
• INU — Inertial Navigation Unit
• CTGY — Category
• TURBT — Turbulent
• ADDS — Aviation Digital Data Service
• POSLY — Positively
• ACLTG — Accelerating
• ACTV — Active
• CLR — Clear
• POD — Probability Of Detection
• DX — Duplex
• DC — District of Columbia
• INCLS — Includes
• AZ — Arizona
• FL — Florida
• RPG — Radar Product Generator
• ACPT — Accept
• MUCAPE — Most Unstable CAPE
• OPR — Operator
• DIST — Distance
• ALQDS — All Quadrants
• VC — Vicinity
• SIG — Signature
• ARTCC — Air Route Traffic Control Center
• KW — Kilowatt (one thousand watts) (measurement)
• SS — Sandstorm
• MCS — Mesoscale Convective System
• PW — Precipitable Water
• VAD — Velocity-Azimuth Display
• TAS — True Airspeed
• WMO — World Meteorological Organization (ICSU)
• METRO — Metropolitan
• WADL — West African Disturbance Line
• NEG — NEGative
• UFN — Until Further Notice
• TC — Tropical Cyclone
• RDA — Radar Data Acquisition
• WO — Without
• BR — Mist
• AC — Altocumulus
• NEGLY — Negatively
• FZFG — Freezing Fog
• TMW — Tomorrow
• FLD — Field

• PDT — Product Development Team
• SFC — Surface
• BCH — Beach
• WV — Water Vapor
• PRODG — Producing
• SW — South West
• USGS — United States Geological Survey (DOI)
• RTE — Route
• NC — North Carolina
• ANS — Answer
• PVA — Positive Vorticity Advection
• AVG — Average Voltage Gain
• PD — Period
• FFW — Flash Flood Warning
• ARINC — Aeronautical Radio Incorporated
• NASA — National Aeronautics and Space Administration (US)
• PM — post meridian
• X — Cross
• TSTMS — Thunderstorms
• Q — Quadrature
• MED — Medium
• OFC — Office
• SEP — September
• CDA — Command and Data Acquisition
• SAT — Saturday
• IMC — Instrument Meteorological Conditions
• CDM — Collaborative Decision Making
• MTNS — Mountains
• LEN — Length
• PUGET — Puget Sound
• VOR — VHF Omnidirectional Range
• ACLTS — Accelerates
• TX — TEXAS
• BHND — Behind
• PY — Spray
• EXER — Exercise
• LLWAS — Low Level Wind Shear Alert System
• VOLMET — Meteorological information for aircraft in flight
• WSR-57 — A NWS Weather Surveillance Radar designed in 1957
• WINTEM — Forecast upper wind and temperature for aviation
• VIP — Video Integrator and Processor
• INCL — Include
• TCU — Towering Cumulus
• MICRO-ART — Microcomputer Automatic Radiotheodolite Master Control Unit
• AFTN — Afternoon
• CAT — Category (e.g. CAT-5 cable)
• AFD — Area Forecast Discussion
• LI — Lifted Index
• CDC — Climate Diagnostics Center
• OWS — Operational Weather Squadron

• FU — Smoke
• NCAR/RAP — National Center for Atmospheric Research/Research Applications Program
• ADVCTN — Advection
• TSFRD — Transferred
• UNAVBL — Unavailable
• NM — New Mexico
• SLP — Slope
• IA — Iowa
• FFS — Flash Flood Statement
• UPS — Uninterruptible Power Supply
• LCL — Local
• INS — Inertial Navigation System
• FZDZ — Freezing Drizzle
• LTL — Little
• BA — Braking Action
• TAF — Terminal Aerodrome Forecast
• DMSHG — Diminishing
• IMPT — Important
• GR — Hail
• NEC — Necessary
• BCM — Become
• VR — Veer
• MPC — Marine Prediction Center
• WIP — Work In Progress (process)
• OML — Operations Manual Letter
• C — Celsius
• WSR-74 — A NWS Weather Surveillance Radar designed in 1974
• RGT — Right
• WBZ — Wet-Bulb Zero
• R — Required
• SRH — Storm-relative Helicity
• NBAA — National Business Aviation Association, Inc.
• TURB — Turbulence
• T — Thunderstorm (weather reports)
• CD — Climatological Data
• WTSPT — Waterspout
• HZ — Haze (METAR Code)
• WB — Weather Bureau
• WI — Within
• PIXEL — Picture Element
• WSFOS — Weather Service Forecast Offices
• MLW — Mean Low Water (nautical Charts)
• GMDSS — Global Maritime Distress and Safety System (IMO)
• CU — Cumulus
• BINOVC — Breaks in overcast
• LTD — Limited
• AP — Airport
• LGTD — Lighted
• TOP — Cloud Top
• PIREP — Pilot (weather) Report

• DBL — Double
• AFDK — After Dark
• KS — Kansas
• ETD — Estimated Time of Departure
• DCP — Data Collection Platform
• AMDT — Amendment
• LST — Local Standard Time
• FFG — Flash Flood Guidance
• LSR — Local Storm Report
• ABV — Above
• MVFR — Marginal Visual Flight Rules
• WRNGS — Warnings
• NH — New Hampshire
• SN — Snow
• FM — From
• IFR — Instrument Flight Rules
• PTLY — Partly
• WNWLY — West-northwesterly
• HJ — Sunrise to sunset
• CI — Cirrus
• UIR — Upper Flight Information Region
• ARPT — Airport
• WSWLY — West-Southwesterly
• AS — Altostratus
• ID — Idaho
• RVSD — Revised
• SMG — Space Flight Meteorology Group
• DDS — Data Distribution System
• UNL — Unlimited
• WSW — West-southwest
• WB — Westbound
• ALTHO — Although
• FA — Area Forecast
• OK — Oklahoma
• RESP — Response
• ALSTG — Altimeter Setting
• WEF — With Effect From
• FD — Winds and Temperatures Aloft Forecasts
• AOB — At or Below
• FZRA — Freezing Rain (METAR Code)
• AIRMET — AIRman's METeorological Information
• PRT — Pulse Repetition Time
• CIG — Ceiling
• FIR — Flight Information Region
• NOSIG — No Significant Change
• APCHG — Approaching
• COE — Creek Corps of Engineers
• POS — Positive
• NCO — NCEP Central Operations
• OTLK — Outlook

• TOR — Tornado Warning
• BWER — Bounded Weak-Echo Region
• UCP — Unit Control Position
• BND — Bound
• MT — Montana
• MEX — Mexico
• WNW — West-northwest
• VV — Vertical Velocity
• NSSL — National Severe Storms Laboratory
• FAR — False Alarm Ratio
• RA — Rain
• VIL — Vertically-Integrated Liquid water
• WY — Wyoming
• THRU — Through
• MDFY — Modify
• BFR — Before
• SMRY — Summary
• PRIN — Principal
• MOVD — Moved
• ALERT — Automated Local Evaluation in Real Time
• FLUC — fluctuation
• TRPCD — Tropical Continental
• SWE — Snow Water Equivalent
• RPRT — Report
• WMC — World Meteorological Center
• NNICE — Neural Network for Icing
• RPT — Repeat
• ATCSCC — Air Traffic Control System Command Center
• CB — Cumulonimbus
• TDL — Techniques Development Laboratory
• NNW — North-Northwest
• BRN — Bulk Richardson Number
• DFNT — Definite
• BCFG — Fog Patches
• G — Green
• DDS — Domestic Data Service
• CRC — Circle
• MAY — May Department Stores Company
• EST — Estimate
• WSHFTS — Wind Shifts
• NTFYD — Notified
• BLDS — Builds
• GOES — Geostationary Operational Environmental Satellite
• T — Temperature
• PROD — Produce
• SHFT — Shift
• SNGL — Single
• ADVYS — Advisories
• SUGG — Suggesting
• MCC — Mesoscale Convective Complex

• OTR — Other
• HGT — Height
• RCVG — Receiving
• LRG — Large
• CS — Cirrostratus
• XBT — expendable bathythermograph (oceanography)
• ADA — Advisory Area
• HWY — Highway
• ROFOR — Route Forecast
• INTSFYS — Intensifies
• HDG — Heading
• COND — Conditions
• CUFRA — Cumulus Fractus
• BKN — Broken
• STFRM — Stratiform
• APRX — Approximate
• SPENES — Satellite precipitation estimate statement
• DCS — Data Collection System (NOAA Polar Orbiting Satellites)
• F — Degrees Fahrenheit
• ACC — Area Control Center
• DE — DELAWARE
• ATTM — At This Time
• RHI — Range-Height Indicator
• TELCON — Telephone Conversation
• DIR — Directory
• API — Antecedent Precipitation Index
• INTL — International
• AWIPS — Advanced weather Interactive Processing System (NOAA)
• BLSN — Blowing Snow (METAR Code)
• PUP — Principal User Processor (NEXRAD)
• REPL — Replace
• VRISL — Vancouver Island, BC
• SMPDBK — The Simplified Dam Break Model
• ST — Stratus
• TKE — Turbulent Kinetic Energy
• AWHPS — Area Wide Hydrologic Prediction System
• DES — Descend
• CNFDC — Confidence
• COMPARD — Compared
• OVR — Over
• MST — Mosta
• IP — Ice Pellets
• MNM — Minimum
• NC — National Center
• NAMIS — NATO Automated Meteorological Information System
• THRUT — Throughout
• WTR — Water
• HI — High
• NE — North-East
• TNGT — Tonight

• ITCZ — Intertropical Convergence Zone (of Seawater)
• NVA — Negative Vorticity Advection
• ADM — Administrative Messages
• LAM — Logical acknowledgment
• SHUD — should
• DFNTLY — Definitely
• SBSDD — Subsided
• CONTLY — Continually
• COMET — Cooperative Program for Operational Meteorology, Education and Training
• BT — Bathythermograph
• WUD — Would
• CISK — Conditional Instability of the Second Kind
• PRSTNC — Persistence
• ASOS — Automated Surface Observing System
• ISA — International Standard Atmosphere
• SHWR — Shower
• Z — Zulu (Greenwich mean time)
• NWS — National Weather Service (formerly U.S. Weather Bureau)
• HRS — Hours
• RVA — River Summary
• ANLYS — Analysis
• GV — Ground Visibility
• PRVDD — Provided
• THKNS — Thickness
• DVRG — Diverge
• TEMP — Temperature
• OFP — Occluded Frontal Passage
• FCST — Forecast
• RPTS — Repeats
• TSB — Technical Support Branch
• SCNDRY — SECONDARY
• WIBIS — Will Be Issued
• EMC — Environmental Modeling Center
• NAV — Navigator
• SHWRS — Showers
• UVV — Upward Vertical Velocity
• BLO — Below
• THK — Thick
• OCS — Oklahoma Climatological Survey
• EPRI — Electric Power Research Institute (US)
• AOPA — Aircraft Owners and Pilots Association
• IAO — In And Out
• SFERICS — Atmospherics
• THR — Threshold
• SHFTG — Shifting
• LTGCC — Lightning Cloud-to-Cloud
• LIFR — Low Instrument Flight Rules
• CAVOK — conditions
• THKR — Thicker
• CRNR — Corner

• SE — Southeast
• ROC — Rate of Climb
• AVN — Aviation Model
• UNKN — Unknown
• OTRW — Otherwise
• MIC — Meteorologist-In-Charge
• PNHDL — Panhandle
• VMC — visual meteorological conditions
• QPFHSD — Ncep Heavy Snow Discussion
• BLSA — Blowing Sand (METAR Code)
• NELY — Northeasterly
• AVBL — available
• INP — If Not Possible
• VAL — Valley
• SG — Snow Grains (weather reports)
• SHFTD — Shifted
• NMC — National Meteorological Center (US)
• SUPSDS — Supersedes
• NLY — Northerly
• MAR — March
• GFS — Global Forecast System
• HAZ — Hazard
• STN — Station
• EL — Equilibrium Level
• SDF — Second-Day Feet
• CC — Cirrocumulus
• SWEAT INDEX — Severe WEAther Threat Index
• KLYR — Smoke Layer Aloft
• RTRND — Returned
• RGN — Region
• SXNS — Sections
• HSF — High Seas Forecasts
• NSSFC — National Severe Storms Forecast Center
• SRN — Southern
• AWDS — Automated Weather Distribution System
• DSIPTN — Dissipation
• THSD — Thousand
• RQRS — Requires
• RSNS — Reasons
• TYPH — Typhoon
• BLD — Build
• INVOF — In vicinity of
• WRN — Western
• ROML — Regional Operations Manual Letter
• PRSNT — Present
• INOP — Inoperative
• DTRTD — Deteriorated
• ADDN — Addition
• PAC — Pacific Region
• ID — IDentifier

• NRCS — Natural Resources Conservation Service
• RMNG — Remaining
• RTRNG — Returning
• NCAR — National Center for Atmospheric Research (US)
• ZN — Zone
• TF — Terminal Forecast
• OAC — Oceanic Area Control Center
• TROFS — Troughs
• PRES — Pressure
• LOT — Local Office Team
• RDR — Radar
• CPBL — Capable
• ADQT — Adequate
• RTD — Delayed
• EV — every
• MLLW — Mean Lower Low Water (nautical Charts)
• FC — Funnel Cloud
• SPKLS — Sprinkles
• DZ — Drizzle
• NAT — North Atlantic
• AWT — Awaiting Trial
• PHYS — Physical
• RSG — Rising
• AMIS — Automated Meteorological Information System
• YR — Your
• RECON — Reconnaissance
• DMNT — Dominant
• DLY — Daily
• VSBY — Visibility
• INTMT — Intermittent
• CNCL — Cancel
• LLJ — Low Level Jet stream
• APST — Aviation Products and Services Team
• CHSPK — Chesapeake
• ESPINIT — ESP Initialization Program
• FVRBL — Favorable
• TDWR — Terminal Doppler Weather Radar
• ATLC — Atlantic
• MORENET — Missouri Research & Education Network
• ELEV — Elevator
• AFOS — Automation of Field Operations and Services
• NHC — United States National Hurricane Center
• GFDL — Geophysical Fluid Dynamics Laboratory (NOAA US)
• COV — Cover
• RIOGD — Rio Grande
• AMOS — Automated Meteorological Observing System
• MWO — Meteorological Watch Office
• ACCAS — Altocumulus Castellanus
• WS — Wind Shear
• JUN — June

• DEP — Depart
• MNT — Monitor
• THKNG — Thickening
• ERN — Eastern
• SEWD — Southeastward
• RAOB — Radiosonde Observation
• SM — Statute Mile
• LONG — Longitude
• EAA — Experiment Aircraft Association
• CNL — Cancel
• RAFS — Regional Analysis and Forecasting System
• BCKG — Backing
• FT — Terminal Forecast
• TOPS — Tops
• CSI — Conditional Symmetric Instability
• AFWIN — Air Force Weather Information Network
• HVYST — Heaviest
• MB — Millibar(s)
• RW — Rain Shower
• FCSTR — Forecaster
• ALUTN — Aleutian
• OSO — Office of Systems Operations
• CNCLG — Cancelling
• FST — First
• REQ — Request
• GEMPAK — General Environmental Meteorological Package
• ACSL — Altocumulus Standing Lenticular
• DVRGG — Diverging
• LTST — Latest
• DEG — Degree
• AZM — Azimuth
• UNSTLD — Unsettled
• ACCID — Notification of an aircraft accident
• MAP — Mean Areal Precipitation
• SBSD — Subside
• DVV — Downward Vertical Velocity
• NCEP — National Centers For Environmental Prediction (form. NMC; NWS Center)
• WWD — Westward (weather reports)
• TRNSP — Transport
• RCM — Radar Coded Message
• SQ — Squall
• VLY — Valley
• METAR — Meteorological Terminal Aviation Routine Weather Report
• CRCLN — Circulation
• DSND — Descend
• AFWA — Air Force Weather Agency
• CNTRS — Centers
• BDRY — Boundary
• SHFTS — Shifts
• TRMM — Tropical Rainfall Measuring Mission (US-Japan)

• CNTR — Center
• PRECD — Precede
• DIFAX — Digital Facsimile
• SMWHT — Somewhat
• RTN — Return
• INTSFYG — Intensifying
• CANAM — Canadian/American
• DRFT — Drift
• IMDTLY — Immediately
• CIP — Current Icing Potential
• JUL — July
• AAA — Amended meteorological message
• FAM — Familiar
• SPC — Storm Prediction Center
• JAN — January
• FPM — Feet Per Minute
• MNLY — Mainly
• UPDFTS — Updrafts
• ACTVTY — Activity
• KT — Knots
• RWY — Runway
• CLEICEIO — Great Lakes 5-Day Ice Outlook
• NW — North West
• AGFS — Aviation Gridded Forecast System
• CNCLD — Canceled
• APRXLY — Approximately
• GAI — Global Atmospherics Inc
• ADVCTD — Advected
• STF — Stratiform
• AOB — Aviation Operations Branch
• RTRNS — Returns
• SWPC — Space Weather Prediction Center
• SPCLY — Especially
• LGT — Light
• HTC — The Hydrometeorological Training Council
• CAEM — Commission for Aeronautical Meteorology (WMO)
• CNTRD — Centered
• AHOS-T — Automatic Hydrologic Observing System - Telephone
• SLD — Supercooled Large Drops
• SBLI — Lifted Index calculated using surfaced based parcel
• KMH — Kilometers per hour
• EHI — Energy Helicity Index
• LOC — Local
• MDL — Model
• RCMDD — Recommended
• FRQ — Frequent
• SARPS — Standards and Recommended Practices
• PSBLTY — Possibility
• ABNML — Abnormal
• LN — Line

• AMPG — Amplifying
• ZR — Freezing Rain
• GA — Georgia
• EC — Environment Canada
• SAW — Preliminary Notification of Forthcoming Watch
• AFT — Afternoon
• FEB — February
• RUC — Rapid Update Cycle
• NRN — Northern
• DAPM — The Data Acquisition Program Manager
• BECMG — Becoming
• ZNS — Zones
• PRSTNT — Persistent
• ABNDT — Abundant
• RCMDG — Recommending
• CEM — Civil Emergency Message
• MDFYD — Modified
• SPECI — Aviation selected special weather report
• ALTM — Altimeter
• TSFRS — Transfers
• ACYC — Anticyclone
• LYRD — Layered
• BLKTG — Blanketing
• WEFAX — Weather Facsimile
• CRCLC — Circulate
• SLOLY — Slowly
• UDDF — Up and Down Drafts
• USMC — United States Marine Corporation
• FREQ — Frequency
• WA — Western Approaches
• PROGD — Forecasted
• VAS — VISSR Atmospheric Sounder
• AVARS — Aircraft Vertical Acceleration Reporting System
• YKN — Yukon
• RQR — Require
• SYNS — Synopsis
• VISSR — visible and infrared spin scan radiometer (GOES)
• PRST — Persist
• RMK — Remark
• SUP — Supply
• PRSNTLY — Presently
• AIV — Aviation Impact Variable
• DNSTRM — Downstream
• NAWAU — National Aviation Weather Advisory Unit
• THNG — Thinning
• PUP — Principle User Processor
• LCTMP — Little change in temperature
• DRFTG — Drifting
• NOHRSC — The National Operational Hydrologic Remote Sensing Center
• SLD — Solid

• AIRMET — Airman's Meteorological advisory
• TT — Total Totals
• SHEFPARS — A software decoder for SHEF Data
• ADL — Additional
• AOML — Atlantic Oceanographic and Meteorological Laboratory (Miami, Florida) (ERL)
• AHOS-S — Automatic Hydrologic Observing System - Satellite
• LEWP — Line Echo Wave Pattern
• SCA — Small Craft Advisory
• SRND — Surround
• BNDRY — Boundary
• ITWS — Integrated Terminal Weather System
• PTCHY — Patchy
• DMSHS — Diminishes
• ASSOCD — Associated
• NWP — Numerical Weather Prediction
• DNSLP — Downslope
• RVS — River Statement
• CONS — Continuous
• ENHNC — Enhance
• CSW — Committee for Space Weather
• INC — in cloud
• LDG — Landing (aviation)
• CNDN — Canadian
• ARR — Arrive
• ADRNDCK — Adirondack
• VOR — VHF Omnidirectional Radio Range
• SGFNTLY — Significantly
• CSTAR — Collaborative Science, Technology and Applied Research
• FLRYS — Flurries
• PRECDS — Precedes
• TMPRYLY — Temporarily
• VLYS — Valleys
• DSF — Day-Second Feet
• CDFNT — Cold Front
• CADAS — Centralized Automated Data Acquisition System
• SR — Sunrise
• GAMA — General Aviation Manufacturers Association's
• DAMBRK — The Dam Break Forecasting Model
• INCR — Increase
• LLP — Lightning Location and Protection, Inc
• ADZ — Advise
• AFCTD — Affected
• WDLY — Widely
• CCL — Convective Condensation Level
• BLKT — Blanket
• NSW — Nil Significant Weather
• CLEGLFGLS — Great Lakes Marine Synopsis
• BLKTS — Blankets
• LLWS — Low Level Wind Shear
• GEO — Geographic

• RPDLY — Rapidly
• INPR — in progress
• SLW — Slow
• FSL — Forecast Systems Laboratory (a NOAA ERL)
• PRBL — Probable
• EFF — Experimental Forecast Facility
• FCSTD — Forecasted
• FNTL — Frontal
• MHKVLY — Mohawk Valley
• RAFC — Regional Area Forecast Center
• ADVY — Advisory
• INTCNTL — Intercontinental
• TWIP — Terminal Weather Information for Pilots
• MDS — Minimum Discernible Signal
• DPTH — Depth
• METOC — Meteorological and Oceanographic
• POSS — Possible
• NFDRS — National Fire Danger Rating System
• BLDUP — Buildup
• VFY — Verify
• FORNN — Forenoon
• RVSS — Revises
• QFE — Atmospheric Pressure At Aerodrome Elevation
• ARTYMET — Artillery Meteorological
• DMSH — Diminish
• OM — Office of Meteorology
• RLTVLY — Relatively
• WMSCR — Weather Message Switching Center Replacement
• CASC — Central Administrative Support Center
• NCDC — National Climatic Data Center
• SWOMCD — SELS Mesoscale Discussion
• SEPN — Separation
• UCAR — University Corporation for Atmospheric Research
• FRZN — Frozen
• AWN — Automated Weather Network
• RCHD — Reached
• SBCAPE — CAPE calculated using a Surface based parcel
• AFTN — Air Force Television Network
• RAM — Regional Area Meteorologist
• DSIPTG — Dissipating
• RVF — River Forecast
• SAWRS — Supplementary Aviation Weather Reporting Station
• WFO — Weather Forecast Office
• SD — Storm Data
• PRBLY — Probably
• CIN — Convective Inhibition
• ACLT — Accelerate
• RDC — Reduce
• ATAD — Automated Telephone Answering Device
• ERL — Environmental Research Laboratories (absorbed By OAR Or NOAA Research)

• TSFRG — Transferring
• AFCTG — Affecting
• DISRED — Disregarded
• ACARS — ARINC Communications Addressing and Reporting System
• ETA — Greek letter, describes a constant height coordinate model system
• CNTRLN — Centerline
• RSTRG — Restricting
• UAB — Until Advised By
• TIP — Until past
• KMARD — Kansas Modernization and Restructuring Demonstration
• CNVTV — Convective
• IMPLS — Impulses
• QUAD — Quadrant
• VIS — Visible
• IWEDA — Integrated Weather Effects Decision Aid
• WAA — Warm Air Advection
• ESA — Electronic Systems Analyst
• SUBTRPCL — Subtropical
• LTGCCCG — Lightning cloud-to-cloud cloud-to-ground
• AGN — Again
• HIFOR — High Level Forecast
• COT — At the Coast
• BASE — Cloud base
• SRNDG — Surrounding
• NNELY — North-northeasterly
• DISCG — Discontinuing
• INSTL — Install
• SHRTWVS — Shortwaves
• WIST — Weather Information for Surface Transportation
• SHRTLY — Shortly
• STBLTY — Stability
• ECMWF — European Center for Medium-Range Weather Forecasting model
• WND — Windsor
• NCWX — No Change in Weather
• BLW — Below
• XNG — Crossing
• SIGMET — Significant Meteorological Advisory
• QG — An abbreviation for quasigeostrophic
• CLEGLSCLE — Great Lakes Storm Summary
• NMBRS — Numbers
• ALF — Aloft
• APCH — approach
• PL — Ice Pellets or Sleet
• RMNDR — Remainder
• BRKG — Breaking
• OAT — Outside Air Temperature
• DISRE — Disregard
• SATFY — Satisfactory
• DEGS — Degrees
• RCKYS — Rockies

• OVRN — Overrun
• GLFMEX — Gulf of Mexico
• THU — Thursday
• VLNT — Violent
• FRZ — Freeze
• KBDI — Keetch-Byram Drought Index
• RSNG — Reasoning
• DLT — Delete
• SNFLK — Snow flake
• SKC — Sky Clear
• SELY — Southeasterly
• DTRTG — Deteriorating
• LGRNG — Long Range
• EUMETSAT — European Organization for the Exploitation of Meteorological Satellites
• EXTRAPD — Extrapolated
• LRGR — Larger
• CONTRAILS — Condensation Trails
• PCPN — Precipitation
• TSNT — Transient
• NAP — NCEP Advisory Panel
• BRM — Barometer
• PRECDG — Preceding
• GOES — Geostationary Orbiting Environmental Satellite
• MDFYG — Modifying
• OPN — Open
• SWODY1 — Day 1 Convective Outlook
• NR — Number
• MDCRS — Meteorological Data Communications and Reporting System
• CLEGLOCLE — Great Lakes Storm Outlook
• ADVCTG — Advecting
• INSTF — Intensify
• TNTVLY — Tentatively
• OBS — Observe
• GRTLY — Greatly
• LONGL — Longitudinal
• FEW — Few
• DVRGS — Diverges
• BRKHIC — Breaks in higher clouds
• AAWU — Alaskan Aviation Weather Unit
• ASSOCN — Association
• HADS — Hydrometeorological Automated Data System
• EB — Eastbound
• ANBURS — Alphanumeric Backup Replacement System
• CAA — Cold Air Advection
• CYC — Cyclonic
• SRNDS — Surrounds
• VRY — Very
• FRM — Form
• ENRT — En Route
• PSBLY — Possibly

• SWO — Staff Weather Officers
• DSTC — Distance
• MRGLLY — Marginally
• COMPAR — Compare
• FLW — Follow
• STGLY — Strongly
• QBI — Compulsory IFR flight
• BNDRYS — Boundaries
• OCLN — Occlusion
• XPLOS — Explosive
• WAFS — World Area Forecast System
• SPRDG — Spreading
• ADVN — Advance
• CFP — Cold Front Passage
• MAREP — Marine Reporting Program
• IMPR — Improve
• COM — Communications Society
• TT — Teletype
• RQRG — Requiring
• ALGHNY — Allegheny
• EXTRM — Extreme
• FCSTG — Forecasting
• GRTST — Greatest
• BLZD — Blizzard
• RVS — Revise
• MLLI — Mean Layer Lifted Index
• LTGCW — Lightning Cloud-to-Water
• LMTS — Limits
• IC — Ice Crystals
• BRG — Branching
• IMT — immediate
• EPV — Equivalent Potential Vorticity
• INTMD — Intermediate
• MTN — Mountain
• CARIB — Caribbean
• SVG — Serving
• NEW ENG — New England
• KFRST — Killing Frost
• RTA — Remote to AFOS
• BYD — Beyond
• LKLY — Likely
• VVP — Volume Velocity Processing
• CNTY — County
• SUB — Substitute
• CONTDVD — Continental Divide
• INTMTLY — Intermittently
• MLOS — Microwave Line-Of-Site
• CTWFC — CINC Target Weather Forecast Center
• ADVNG — Advancing
• CDB — Computing Development Branch

• HN — Sunset to sunrise
• SRNDD — Surrounded
• PS — Plus
• BRKSHRS — Berkshires
• WSHFT — Wind Shift
• EXCLV — Exclusive
• MOVG — Moving
• INCRS — Increases
• CNVGG — Converging
• CMPLX — Complex
• RCRDS — Records
• LTGIC — Lightning in Cloud
• MOD — moderate dysplasia
• CTSKLS — Catskills
• NTFY — Notify
• OUBD — Outbound
• ONSHR — Onshore
• EMBD — Embedded in a layer
• QUE — Quebec
• VCNTY — Vicinity
• CNCLS — Cancels
• ART — Automatic Radio Theodolite Master Control Unit As
• USWB — United States Weather Bureau
• AFW — Air Force Weather
• RCH — Reach
• SWODY2 — Day 2 Convective Outlook
• EXTN — Extension
• EXPCD — Expected
• AWSS — Aviation Weather Sensor System
• OTW — Owning The Weather
• IMDT — Immediate
• FZ — Freezing
• FPO — Flood Potential Outlook
• TROF — Trough
• EXPCG — Expecting
• ROBEX — Regional OPMET bulletin exchange
• ESEWD — East-Southeastward
• DSTBLZN — Destabilization
• PRESRR — Pressure Rising Rapidly
• DPNG — Deepening
• RFD — Rear Flank Downdraft
• COMPARS — Compares
• ASH — Assistant Service Hydrologist
• PIREP — Pilot Report
• ISCS — International Satellite Communications System
• VA — Virginia Ash
• ICG — Icing
• RPTG — Repeating
• APPRG — Appearing
• JMA — Japanese Meteorological Agency

• BRF — Brief
• PEN — Peninsula
• LMTG — Limiting
• SHRTWV — Shortwave
• EXC — Except
• AWC — Aviation Weather Center
• SIERNEV — Sierra Nevada
• CNTRL — Central
• NLDN — National Lightning Detection Network
• OBSC — Obscure
• NNWLY — North-northwesterly
• INDCD — Indicated
• NEXRAD — Next-Generation Weather Radar (NWS)
• OFF — Offshore Forecast
• DVLPD — Developed
• PRECDD — Preceded
• APRNTLY — Apparently
• CUF — Cumuliform
• FQT — Frequent
• NCDB — NCEP Computer Development Branch
• CDFNTL — Cold frontal
• EVAD — Extended Velocity
• DSTBLZ — Destabilize
• CLRG — Clearing
• AC — Anticipated Convection Outlook
• CPC — Climate Prediction Center (NWS Center)
• DIF — Diffuse
• MCIDAS — Man-computer Interactive Data Access System
• WFP — Warm Front Passage
• APCHS — Approaches
• MDLS — Models
• OVC — Overcast (METAR Code)
• DFCLTY — Difficulty
• RS — Receiver station
• NWSRFS V5.0 — National Weather Service River Forecast Model Version 5
• ICGIP — Icing in Precipitation
• TSFR — Transfer
• FNCTN — Function
• LK — Lake
• AWOS — Automated Weather Observation System
• VRT MOTN — Vertical Motion
• ESELY — East-southeasterly
• INCRGLY — Increasingly
• TAFB — Tropical Analysis and Forecast Branch
• USBR — US Bureau of Reclamation
• RE — Regard
• DWOPER — Dynamic Wave Routing Model
• RPRTD — Reported
• AMPLTD — Amplitude
• LEVEL — Level

• FRMG — Forming
• NOPAC — Northern Pacific
• HDSVLY — Hudson Valley
• REQSTD — Requested
• DMSHD — Diminished
• INCLG — Including
• PARL — Parallel
• DSTBLZG — Destabilizing
• GRID — Processed meteorological data in the form of grid point values
• AOA — At or Above
• ERYR — Earlier
• DSIPTD — Dissipated
• DVRGNC — Divergence
• ENERN — East-northeastern
• HMD — Hemispheric Map Discussion
• ETA — estimating arrival
• APLCNS — Appalachians
• SXN — Section
• CAFTI — Committee on Analysis and Forecast Techniques Implementation
• LTG — Lightning
• CLEICEFBO — Great Lakes Ice Outlook for the Opening of Navigation
• NEXRAD — NEXt generation of weather RADar
• FNTS — Fronts
• ACPY — Accompany
• VER — Vertical
• INTSFYD — Intensified
• FG — Fog Gun
• APRNT — Apparent
• TRMTD — Terminated
• SMTH — Smooth
• VRB — Variable
• CNVGNC — Convergence
• SST — Sea surface temperature
• LVLS — Levels
• NAVPACMETOCCEN — Naval Pacific Meteorology and Oceanography Center, Pearl Harbor, Hawaii
• PROC — Procedure
• NSC — Nil Significant Cloud
• INDCG — Indicating
• DCRGLY — Decreasingly
• DBNET — Distributed Brokered Networking
• EXTD — Extend
• ULJ — Upper-Level Jet
• EXCLVLY — Exclusively
• ELNGTD — Elongated
• SSWWD — South-Southwestward
• MAN — Manitoba
• VRBL — Variable
• FCEXEC — A component of the NWSRFS FCST Program
• ASC — Aviation Services Coordinator
• SHSN — Snow Showers (METAR Code)

• CIGS — Ceilings
• DGNLLY — Diagonally
• IIDA — Integrated Icing Diagnostic Algorithm
• AMD — amend
• M — Mesocyclone
• SPD — Speed
• CLKWS — Clockwise
• DSIPTS — Dissipates
• APSG — After passing
• NATA — National Air Transportation Assoc.
• GRTLKS — Great Lakes
• MOVMT — Movement
• OTP — On Top
• SKED — Schedule
• DIGG — Digging
• FILG — Filling
• DVLPG — Developing
• SLY — Southerly
• LPATS — Lightning Position And Tracking System
• TAWS — Tactical Acquisition Weather Software
• VIL — Vertically Integrated Liquid
• HPD — Hourly Precipitation Data
• DSTBLZD — Destabilized
• HRL — The Hydrological Research Laboratory
• FLWG — Following
• ASAPTRAN — The software component of ASA
• NEXRAD — Next Generation Weather Radar
• SCTR — Sector
• LCTD — Located
• MULTILVL — Multi-level
• FAH — Fahrenheit
• APLCN — Appalachian
• ASC — Ascent to
• HVYR — Heavier
• CLEICEFBO — Great Lakes Freeze-Up Outlook
• SNBNK — Snow bank
• SERN — Southeastern
• DELMARVA — Delaware-Maryland-Virginia
• CBMAM — Cumulonimbus Mammatus
• CNTYS — Counties
• MIDN — Midnight
• FLG — Flashing
• SP — Snow Pellets
• OCFNT — Occluded Front
• DPND — Deepened
• OCNLY — Occasionally
• CCSL — Cirrocumulus Standing Lenticular
• ET — Electronic Technician
• RPLC — Replace
• FCSTS — Forecasts

• DNR — Department of Natural Resources
• SASK — Saskatchewan
• CGEN — Convective Sigmet Generation
• DISREG — Disregarding
• EXTRMLY — Extremely
• INDCS — Indicates
• AMP — Amplify
• OUTFLO — Outflow
• LFTG — Lifting
• GRDLY — Gradually
• ACLTD — Accelerated
• ROD — Rate Of Descent
• MBRFC — Missouri Basin River Forecast Center
• FOS — FAMILY OF SERVICES
• INTRMTRGN — Intermountain Region
• DURN — Duration
• SPLNS — Southern Plains
• WTU — Weather Technology Unit
• ESERN — East-Southeastern
• PGTSND — Puget Sound
• ENELY — East-northeasterly
• NNE — North-North-East
• FQTLY — Frequently
• GEOREF — Geographical reference
• NFLD — Newfoundland
• BAMS — Bulletin of the American Meteorological Society
• LFM — Limited Fine Mesh
• MPL — Max Parcel Level
• ATDTDCS — Automated Tone Dial Telephone Data Collection System
• VCTR — Vector
• OVNGT — Overnight
• INCRG — Increasing
• INTRP — Interrupt
• PC-GRIDDS — Pc-Gridded Interactive Display and Diagnostic System
• TSTM — Thunderstorm
• WIDA — Weather Impact Decision Aids
• STLT — Satellite
• FRZG — Freezing
• DWNDFTS — Downdrafts
• NWSTC — National Weather Service Training Center
• BGN — Begin
• I — See inphase
• OCLDD — Occluded
• ENHNCD — Enhanced
• INBD — Inbound
• FRI — Friday
• WLY — Westerly
• IPV — Improve
• WAFC — World Area Forecast Center
• VFYD — Verified

• ACRS — Across
• DRFTD — Drifted
• DSNDG — Descending
• DWPNTS — Dewpoints
• GSTS — Gusts
• IFLOWS — The Integrated Flood Observing and Warning System
• PSND — Positioned
• ENHNCMNT — Enhancement
• ASB — Aviation Support Branch
• AGRS — Agrees
• INTSTY — Intensity
• ENHNCS — Enhances
• NAVMETOCCOM — Naval Meteorology and Oceanography Command
• SVRL — Several
• WCM — Warning Coordination Meteorologist
• SQAL — Squall
• MEGG — Merging
• RL — Report Leaving
• ARFOR — Area Forecast
• PRVDS — Provides
• ADVIS — Headwater Advisory Program
• DIV — Divert
• TCNTL — Transcontinental
• TSSN — Thundersnow
• ERY — Early
• PQPF — probabilistic quantitative precipitation forecast
• CDFS — Cloud Depiction and Forecast System
• INVRN — Inversion
• ELSW — Elsewhere
• DNDFTS — Downdrafts
• INTSFCN — Intensification
• CLA — Clear type of ice formation
• WDSPR — Widespread
• TROP — Tropopause
• PSG — Passing
• RTVS — Real Time Verification System
• ENDG — ending
• FAWS — Flight Advisory Weather Service
• RCMD — Recommend
• IOS — Integrated Operational Services
• HLYR — Haze Layer Aloft
• RSTR — Restrict
• SUF — Sufficient
• NERN — Northeastern
• HEL — Helicopter
• RUFLY — Roughly
• SBND — South bound
• TRML — Terminal
• ICGIC — Icing in Clouds
• PVL — Prevail

• COMPARG — Comparing
• THTNS — Threatens
• LRGST — Largest
• OSV — Ocean Station Vessel
• DP — Deep
• ROSA — Remote Observing System Automation
• STP — Storm Total Precipitation
• FVT — Forecast Verification Tool
• WRS — Weather Reconnaissance Squadron
• EXTDD — Extended
• FRST — Frost
• SMTM — Sometime
• ENEWD — East-northeastward
• MNLND — Mainland
• HND — Hundred
• PPI — Plane Position Indicator
• BDA — Bermuda Island
• KM — Kilometers to Miles
• REPLG — Replacing
• DISCD — Discontinued
• INSTBY — Instability
• FAX — Facsimile Transmission
• EXTDS — Extends
• LV — Leaving
• STAGN — Stagnation
• NADIN — National Airspace Data Interchange Network
• INTVL — Interval
• CLDS — Clouds
• GENLY — Generally
• ENHNCG — Enhancing
• NWLY — Northwesterly
• HURCN — Hurricane
• BLKHLS — Black Hills
• TWI — Twilight
• MOVS — Moves
• CNVTVLY — Convectively
• LO — Low
• METAR — Meteorological Aviation Report
• RGL — Regional Model
• EXP — Expect
• DVLPS — Develops
• ARCUS — Arc Cloud
• WARP — Weather and Radar Processor
• TVS — Tornado Vortex Signature
• RPRTS — Reports
• THTNG — Threatening
• LRGLY — Largely
• WED — Wednesday
• ESTAB — Establish
• HVY — Heavy

• PPINE — Plan Position Indicates No Echoes
• MARD — Modernization and Restructuring Demonstration
• FIC — Flight Information Center
• SAMEX — Storm and Mesoscale Ensemble Experiment
• T — Thunder
• RMNS — Remains
• WKEND — Weekend
• THRFTR — Thereafter
• TPC — Tropical Prediction Center
• CAAM — Computer Assisted Artillery Meteorology
• U/S — Unserviceable
• LMTD — Limited
• ARAM — Aviation, Range and Aerospace Meteorology
• VWP — Velocity Azimuth Display Wind Profile
• WVS — Waves
• NCWF — National Convective Weather Forecast
• UVM — Upward Vertical Motion
• STMS — Storms
• SS — Sunset
• WK — Weak
• WND — Wind
• AHD — Ahead
• DGNL — Diagonal
• AMS — American Meteorology Society
• XS — Atmospherics
• PRI — Primary
• ATWIS — Advanced Transportation Weather Information System
• PRVD — Provide
• UPR — Upper
• DVLPMT — Development
• LGWV — Long Wave
• ISOL — Isolate
• DRFTS — Drifts
• EXTSV — Extensive
• PROB — probability
• RMN — Remain
• EWD — Eastward
• ER — Here
• NRLY — Nearly
• SPOT — Spot Wind
• IOVC — In Overcast
• MESO — Mesoscale
• MTW — Mountain Waves
• XTRM — Extreme
• INTST — Intensity
• CCLKWS — Counter-Clockwise
• VORT — Vorticity
• ADVS — Advisory Service
• CBOFS — Chesapeake Bay Oceanographic Forecasting System
• EXTDG — Extending

• TR — Track
• NML — Normal
• NMBR — Number
• ET — Echo Tops
• TIL — Until
• WIMS — Weather Information Management System
• GS — Small hail and snow pellets
• OVTK — Overtake
• VA — Volcanic Ash
• ICE — icing
• AMDG — Amending
• MCIDAS — Man Computer Interactive Data Acquisition System
• OFSHR — Offshore
• ZE — Equivalent Radar Reflectivity
• DSCNT — Descent
• OFCM — Office of the Federal Coordinator for Meteorological Services and Supporting Research
• ELNGT — Elongate
• INDEF — Indefinite
• SUG — Suggest
• HSA — Hydrologic Service Area
• BTL — Between layers
• CHGD — Changed
• ADVCT — Advect
• GLFALSK — Gulf of Alaska
• HDWND — Head Wind
• MSTLY — Mostly
• RPLCD — Replaced
• DOM — Domestic
• PROGS — Forecasts
• THDR — Thunder
• RES — Reserve
• STNS — Stations
• DSTBLZS — Destabilizes
• LDADS — Local Data Acquisition and Dissemination System
• REPLD — Replaced
• GRTR — Greater
• UVVS — Upward Vertical Velocities
• STDY — Steady
• EPD — Extended Forecast Discussion
• RE — Recent
• PE — Ice pellets
• SPRD — Spread
• MWAVE — Mountain Wave Algorithm
• LKS — Lakes
• FCMSSR — Federal Committee for Meteorological Services and Supporting Research
• OBST — Obstacle
• VCY — Vicinity
• FDR — Fire Danger Rating
• WRNG — Warning
• ALTA — Alberta

• NS — Nimbostratus
• UNSTBL — Unstable
• CAWIS — Committee for Automated Weather Information Systems
• RSTRD — Restricted
• DMCC — DOE Meteorological Coordinating Council
• DMGD — Damaged
• KCFB — Kansas City Federal Building
• VFYG — Verifying
• AGRD — Agreed
• DSNDS — Descends
• MLCAPE — Mean Layer CAPE
• CWSU — Center Weather Service Unit
• WSP — Weather Systems Processor
• BRS — Branches
• EVE — Evening
• TDO — Tornado
• SPDS — Speeds
• SC — Stratocumulus (cloud formation)
• NB — NorthBound
• FNT — Front
• INTSFY — Intensify
• OU — University of Oklahoma
• HYR — Higher
• LGTR — Lighter
• IMPL — Impulse
• CHGG — Changing
• TFU — Theater Forecast Unit
• ZL — Freezing Drizzle
• CWF — Combat Weather Flight
• XPC — Expect
• LCTN — Location
• APPR — Appear
• BAJA — Baja California
• NMRS — Numerous
• ENSO — El Niño and Southern Oscilation
• MRTM — Maritime
• WID — Width
• BRKS — Breaks
• RPD — Rapid
• SFD — STATE FORECAST DISCUSSION
• GTG — Graphical Turbulence Guidance
• LYR — Layer
• NAWPC — National Aviation Weather Program Council
• SWB — South-Westbound
• RSN — Reason
• OCRS — Occurs
• RDVLP — Redevelop
• RAWS — Remote Automatic Weather Station
• SMOOS — Shipboard Meteorological and Oceanographic Observing Sensor
• DEV — Deviation

• INDC — indicate
• NCCF — NOAA Central Computer Facility
• SGFNT — Significant
• WRS — Worse
• NRW — Narrow
• RPRTG — Reporting
• PVLG — Prevailing
• DTRT — Deteriorate
• MDTLY — Moderately
• BFDK — Before Dark
• LWR — Lower
• SPD — speed of pupillary dilation
• FMT — Format
• ATMU — AIR TRANSPORTABLE MOBILE UNIT
• PRVDG — Providing
• SCTD — Scattered
• WNWWD — West-Northwestward
• DFCLT — Difficult
• VLNTLY — Violently
• SLO — Slow
• GLFCAL — Gulf of California
• NBRHD — Neighborhood
• NESDIS/SAB — National Environmental Satellite, Data and Information Service/Satellite Analysis Branch
• BPAA — Business Pilots Aircraft Association
• RPLCG — Replacing
• ROTD — Rotated
• ALG — Along
• MST — Meteorological Support Teams
• CHGS — Changes
• IFFDP — International Flight Folder Documentation Program
• NNEWD — North-Northeastward
• MULI — Most Unstable Lifted Index
• OHD — Overhead
• SEL — Severe Thunderstorm Watch, Tornado Watch
• HWVR — However
• MXD — Mixed
• DRG — During
• SCT — Scattered
• DCR — Decrease
• MRGL — Marginal
• SSE — South-Southeast
• MC — Meteorological Codes
• SHEF — Standard Hydrologic Exchange Format
• NBND — Northbound
• RR — Report Reaching
• OCLDG — Occluding
• MS — Minus
• WKNG — Weakening
• FLG — Falling
• COOR — Co-ordinate

• DSIPT — Dissipate
• THNST — Thinnest
• CRP — Critical Rainfall Probability
• NGM — Nested Grid Model
• STBL — Stable
• AMDAR — Automatic Meteorological Data And Reporting
• QTP — Quality Through Partnership
• MON — Monday
• DFUS — Diffuse
• HRZN — Horizon
• JCTN — Junction
• SIMUL — Simultaneous
• EXCP — Except
• CASCDS — Cascades
• OSD — Office of Systems Development
• PWO — Public Severe Weather Outlook
• BGNS — Begins
• SUPS — Supplies
• TEMPO — Temporary
• UNRSTD — Unrestricted
• MMS — METEOROLOGICAL MEASURING SYSTEM
• SHRT — Short
• SCND — Second
• NWRN — Northwestern
• JTSTR — Jet Stream
• STNRY — Stationary
• QPF — Quantitative Precipitation Forecast
• UNSBL — Unseasonable
• FIAS — Flight Information Advisory Service
• NWSEO — National Weather Service Employees Organization
• MULT — Multiple
• MTU — Metric units
• RAG — Ragged
• NEWD — Northeastward
• ETC — Echo Tops Contour
• ENCTR — Encounter
• CWS — Combat Weather Squadron
• DRZL — Drizzle
• EXPC — Expect
• RAMSDIS — RAMM Advanced Meteorological Satellite Demonstration and Interpretation System
• WINT — Winter
• NAVTEX — Navigational Telex
• MMS-P — Meteorological Measuring System-Profiler
• HCVIS — High Clouds Visible
• UNREL — Unreliable
• DUR — Duration
• SLGT — Slight
• CVRG — Covering
• HV — Have
• TRNSPG — Transporting

• SUN — Sunday
• GNDFG — Ground Fog
• VGF — Virtual Graphics File
• UNUSBL — Unusable
• NNWWD — North-Northwestward
• ESTS — Estimates
• RHINO — RHI not operative
• MAY — Mayaro
• SVR — Severe
• SEV — Severe
• GDS — GeoMet Data Services, Inc.
• NACA — National Advisory Committee on Aeronautics
• RMND — Remained
• ADVCTS — Advects
• CAPPI — CONSTANT ALTITUDE PPI
• FOUS — Forecast Output United States
• GOM — Global Ocean Model
• USWRP — United States Weather Research Program
• WSFO — Weather Service Forecast Office
• SUPG — Supplying
• SAOS — Surface Observations
• WDI — Wind Direction Indicator
• YLSTN — Yellowstone
• BRKSHR — Berkshire
• SNWFL — Snowfall
• RPLCS — Replaces
• TPG — Topping
• RSMC — Regional/Specialized Meteorological Centers
• MLTLVL — Melting Level
• UNEC — UnNECessary
• SSHP — Site Specific Hydrologic Prediction System
• LN — Line Network
• REPLS — Replaces
• CSTL — Coastal
• NOWCAST — Short Term Forecast
• NWWS — NOAA Weather Wire System
• OCWWS — Office of Climate, Water and Weather Services
• SLT — Sleet
• URG — Urgent
• WETM — Weather Team
• RESTR — Restrict
• FROSFC — Frontal Surface
• LAN — Inland
• SSWLY — South-Southwesterly
• RGD — Ragged
• SBSDS — Subsides
• CVRD — Covered
• SNW — Snow
• NWSTG — National Weather Service Telecommunications Gateway
• HOL — Holiday

• INLD — Inland
• SAP — As soon as possible
• LSQ — Line Squall
• RCS — Reflectivity Cross Section
• UNRELBL — Unreliable
• NMOC — National Meteorological Operations Centre
• BD — Blowing Dust
• ISOLD — Isolated
• DLA — Delay
• YDA — Yesterday
• WST — Weather Support Team
• SPRL — Spiral
• WKDAY — Weekday
• ESNTL — Essential
• NAOS — North American Atmospheric Observing System
• EMERG — Emergency
• VLCTY — Velocity
• SQSN — Snow Squalls
• PRBLTY — Probability
• CS — Combined Shear
• INCRD — Increased
• PNS — Public Information Statement
• SIGMET — Significant Meteorlogical Information
• GLFSTLAWR — Gulf of St. Lawrence
• MOV — Move
• VCOT — VFR Conditions on Top
• VAAC — Volcanic Ash Advisory Centers
• OCRG — Occurring
• ROT — Rotate
• LDM — Local Data Manager
• STM — Storm
• PSBL — Possible
• VDUC — VAS Data Utilization Center
• TWEB — Transcribed Weather Broadcast
• NOWS — NVG Operations Weather Software
• INCLD — Included
• DURG — During
• ETIM — ELAPSED TIME
• EFCT — Effect
• NWSH — National Weather Service Headquarters
• SAO — Surface observation
• CG — Cloud-Ground Lightning
• FLN — National Flood Summary
• WL — will
• RVR — River Recreation Statement
• TRPCL — Tropical
• GRAD — Gradient
• TAMU — Tropical Aviation Meteorological Unit
• ESF — Flood Potential Outlook
• PIBAL — pilot-balloon observation

• LWRD — Lowered
• METMFR — Meteorological Mobile Facility Replacement
• DWSW — Deployable Weather Satellite Workstation
• DSNT — Distant
• OCNL — Occasional
• RCRD — Record
• AFT — After
• DCRG — Decreasing
• RVI — River Ice Statement
• OVTKG — Overtaking
• TSIP — Thundersleet
• CMFC — Coordinating METOC Forecast Center
• LWRG — Lowering
• UKMETO — United Kingdom Meteorological Office
• ARSI — Atmospheric Research System, Inc.
• TOFS — Tactical Observing & Forecasting System
• NWR — NOAA Weather Radio
• FRWF — Forecast Wind Factor
• BNTH — Beneath
• CW — Cloud-Water Lightning
• G — Gust
• MCD — Mesoscale Discussion
• WSR-88D — Weather Surveillance Radar - 1988 Doppler
• CRNRS — Corners
• DPNS — Deepens
• THD — Thunderhead
• TURBC — Turbulence
• RMTN — Regional Meteorological Telecommunications Network
• METMF — Meteorological Mobile Facility
• PROG — Forecast
• WRMFNT — Warm Front
• SSERN — South-Southeastern
• LIVV — Lifted Index Vertical Velocity
• SMW — Special Marine Warning
• EPSCOR — Experimental Program for the Stimulation of Competitive Research
• LIS — Lifted indices
• WKN — Weaken
• ZFP — Zone Forecast Product
• TRIB — Tributary
• STNR — Stationary
• VSBYDR — Visibility Decreasing Rapidly
• SSEWD — South-Southeastward
• STFR — Stratus Fractus
• CYCLGN — Cyclogenesis
• HIGH — HIGHLAND
• AFCT — affect
• DFRS — Differs
• M — Mach number
• RGNS — Regions
• BCMG — Becoming

• FFA — Flood Frequency Analyses
• IWRS — Improved Weather Reconnaissance System
• UNSTDY — Unsteady
• EMWIN — Emergency Managers Weather Information Network
• DVLP — Develop
• AQI — Air Quality Statement
• FG — Foggia
• PLNS — Plains
• TWRG — Towering
• VCS — Velocity Cross Section
• SUPR — Superior
• MDS — Meteorological Distribution System
• FNTGNS — Frontogenesis
• VFYS — Verifies
• USACE — Unites States Army Corps of Engineers
• CLRS — Clears
• TFS — Tactical Forecast System
• TOVC — Top of Overcast
• PLVL — Present Level
• CCLDS — Clear of Clouds
• STWDSR — Surface Transportation Weather Decision Support Requirements
• PCD — Proceed
• OVTKS — Overtakes
• NIL — None
• HDFRZ — Hard Freeze
• SHARP — Skew-T Hodograph Analysis and Research Program
• OMTNS — Over Mountains
• DLAD — Delayed
• RCHG — Reaching
• SHLD — SHieLD
• RTRN — Return
• SRRS — Systems Record Retention System
• SWLG — Swelling
• CWF — Coastal Marine Forecasts
• OCRD — Occurred
• TRMT — Terminate
• SWAFS — Space Weather Analysis and Forecasting System
• TMPRY — Temporary
• CAPS — Center for Analysis and Prediction of Storms
• TUE — Tuesday
• HMT — Hydrometeorological Technicians
• PTNLY — Potentially
• HLF — Half
• AMDD — Amended
• DLTG — Deleting
• CONTG — Continuing
• RADAT — RADiosonde Observation Data
• HLSTO — Hailstones
• CWA — Center Weather Advisory - CWSU
• WDSPRD — Widespread

• REQS — Requests
• SB — Southbound
• SBSDNC — Subsidence
• R — Reduction
• FTHR — Further
• LTLCG — Little Change
• SPS — Special (Weather) Statement
• CPHC — Central Pacific Hurricane Center
• SSWRN — South-Southwestern
• ASIST — Aviation Safety Investment Strategy Team
• BCMS — Becomes
• VSA — By Visual Reference to the Ground
• NNWRN — North-Northwestern
• BGNG — Beginning
• CNIF — Calibration Network Information Files
• SNST — Sunset
• FNTLYS — Frontolysis
• HWO — Severe Weather Potential Statement
• SYNOP — Synoptic
• SPRDS — Spreads
• DNS — Dense
• ARND — Around
• CSC — Combined Shear Contour
• HLTP — Hilltop
• RGLR — Regular
• GICG — Glaze Icing
• ROB — Radar Coded Observation
• DCRS — Decreases
• TRBL — Trouble
• NWP — Numerical Weather Predication
• PMD — Prognostic Discussion
• GRDL — Gradual
• SRY — Secondary
• SELS — SEvere Local Storms Unit
• SND — Sanderson
• SDM — Station Duty Manual
• DISC — Discontinue
• EMBDD — Embedded
• FFA — Flood
• IDS — International Data Service
• ORGPHC — Orographic
• NPRA — National Performance Results Act
• SIGWX — Significant Weather
• SLPG — Sloping
• PO — Dust devils
• XTRMLY — Extremely
• OPS-II — Operational Weather Squadron Production System II
• SFP — State Forecast Product
• UPSTRM — Upstream
• HPA — Hectapascal

• CHC — Chance
• CCA — Corrected meteorological message
• TRMTG — Terminating
• MSTR — Moisture
• RLTV — Relative
• SDM — Senior Duty Meteorologist
• VSBYIR — Visibility Increasing Rapidly
• WKNS — Weakens
• DMGG — Damaging
• RDVLPG — Redeveloping
• PRJMP — Pressure Jump
• SOO — Scientific Operations Officer
• ITT — Information Technology Team
• HP — High Precipitation
• MAY — Maysville
• UNSTL — Unsettle
• SHARS — Subtle Heavy Rainfall Signature
• DNWND — Down wind
• ENE — east-northeast
• PIBALS — Pilot Balloon Reports
• HUREP — Hurricane Report
• NWD — Northward
• PVLS — Prevails
• AHOS — Automatic Hydrologic Observing System
• SUPSDG — Superseding
• HUD — Housing and Urban Development, U.S. Department of
• CNVG — Converge
• IC — In-Cloud Lightning
• STG — Strong
• TNDCYS — Tendencies
• MESO — Mesoscale Convective Unit
• ERD — Excessive Rainfall Discussion
• SHLW — Shallow
• CSDRBL — Considerable
• OCLD — Occlude
• QPFERD — Nmc Excessive Rainfall Discussion
• ASMD — As amended
• XTNDG — Extending
• WSWWD — West-Southwestward
• TSHWR — Thundershower
• MCDW — Monthly Climatic Data of the World
• SA — Surface observation
• NIDS — NEXRAD Information Distribution Service
• CLDNS — Cloudiness
• PDMT — Predominant
• INTR — Interior
• HIC — Hydrologist In Charge
• LINUX — UNIX-like computer operating system
• NIDS — NEXRAD Information Dissemination Service
• SA — Sand

• SSW — South Southwest
• AWT — Awaiting Test
• ESP — Extended Streamflow Prediction
• WPLTO — Western Plateau
• HLS — Hurricane Local Statement
• UPSLP — Upslope
• PVLD — Prevailed
• RVSG — Revising
• QPFSPD — Nmc Special Precipitation Discussion
• TRMTS — Terminates
• MDT — Moderate
• FRMN — Formation
• DCRD — Decreased
• IPVG — Improving
• RSTRS — Restricts
• CHCS — Chances
• RDVLPMT — Redevelopment
• WRMST — Warmest
• PWS — Precipitable Waters
• ROTG — Rotating
• DKTS — Dakotas
• AMS — Air mass
• NCWD — National Convective Weather Diagnostic
• TNDCY — Tendency
• XCP — Except
• ESS — Water Supply Outlook Product
• WNDS — Winds
• INTS — intense
• WEA — Weather
• UNSATFY — Unsatisfactory
• NPSU — National Public Service Unit
• DWPNT — Dewpoint
• SWD — Southward
• LO — Lower Order
• SWI — Showalter Index
• PSCZ — Puget Sound Convergence Zone
• MRNG — Morning
• XTND — Extend
• UWNDS — Upper Winds
• MRF — Medium-Range Forecast Model
• RNFL — Rainfall
• WINDS — Weather Information and Display System
• SLGTLY — Slightly
• PSH — Preliminary Tropical Storm Report
• NPRS — Nonpersistent
• GSTY — Gusty
• OHP — One-Hour Rainfall Rate
• OCLDS — Occludes
• SMA — Soil Moisture Accounting Model
• DUC — Dense Upper Cloud

• NWB — North-westbound
• TWDS — Towards
• WNWRN — West-Northwestern
• WSWRN — West-Southwestern
• CR — Composite Reflectivity
• WKST — Weakest
• SMTHR — Smoother
• GFA — Graphical Area Forecast
• SEB — South-eastbound
• STGR — Stronger
• MET — Meteorology
• MISG — Missing
• WTRS — Waters
• DU — Dust
• NNERN — North-Northeastern
• PRC — Planning and Research Corporation
• PDS — Periods
• PRSTS — Persists
• CWA — County Warning Area
• WSTCH — Wasatch Range
• TRKG — Tracking Corporation (OTC Bulletin Board [OTCBB])
• VRG — Veering
• WFOS — Weather Forecast Offices
• THKST — Thickest
• WRM — Warm
• THN — Thin
• TCE — Tropical Cyclone Position Estimate
• HIER — Higher
• BATROP — Barotropic
• PPSN — Present Position
• COR — Corrected/Correction
• QPFPFD — Ncep Precipitation Forecast Discussion
• THNR — Thinner
• SOO — Scientific and Operations Officer
• TDU — Techniques Development Unit
• THTN — Threaten
• TWR — Tactical Weather Radar
• HPC — Weather Prediction Center
• HSB — Hydrologic Systems Branch in the Office of Hydrology
• TDA — Today
• WWS — Severe Weather Watches
• SWRN — Southwestern
• THTND — Threatened
• SNOINCR — Snow increase
• SMLR — Smaller
• REP — Report
• ROTS — Rotates
• CVRS — Covers
• NWSO — National Weather Service Office
• TACWX — Tactical weather

• STI — Storm Tracking Information
• RCVS — Receives
• QN — Question
• UNA — Unable
• EIF — Enhanced IFLOWS Format
• VSB — Visible
• RDGG — Ridging
• WTSPTS — Waterspouts
• XTNDD — Extended
• SWA — Severe Weather Analysis
• SSELY — South-Southeasterly
• SUNYA — State University of New York, Albany
• APPRS — Appears
• DPR — Deeper
• TSHWRS — Thundershowers
• EBND — East bound
• CST — Coast
• VARN — Variation
• KU — University of Kansas
• PTNS — Portions
• ESE — East-southeast
• SUGS — Suggests
• PRIND — Present indications are
• RLBL — Reliable
• SCSL — Standing lenticular stratocumulus
• OPA — Opaque, white type of ice formation
• G — Green time
• OVRNG — Overrunning
• RUF — Rough
• RCMDS — Recommends
• TAP — Transition Aviation Project
• NL — No layers
• SRM — Storm Relative Mean Radial Velocity Map
• FLS — River Flood Statement
• CNVTN — Convection
• SCC — Tropical Storm Summary
• SMTHST — Smoothest
• CSDR — Consider
• SRR — Storm Relative Mean Radial Velocity Region
• USBL — Usable
• TWS — Tropical Weather Summary
• SPKL — Sprinkle
• ENTR — Entire
• CSI — Critical Success Index
• USFS — U.S. Forest Service
• RCHS — Reaches
• WRMFNTL — Warm Frontal
• WSDDM — Weather Support to Deicing Decision Making
• POP — Precipitation Probability
• WRMG — Warming

• DSA — Special Tropical Disturbance Statement
• TRSN — Transition
• NSH — Nearshore Lake Forecast
• MOS — Model Output Statistics applications
• VRS — Veers
• PLTO — Plateau
• TRW — Thunderstorm
• MX — Mixed Type of Ice Formation
• MOGR — Moderate, or Greater
• WIE — With Immediate Effect
• FIP — Forecast Icing Potential
• WKR — Weaker
• DS — Dust Storm
• TSRA — Thunderstorm with rain
• TYP — Type of Aircraft
• UKMET — United Kingdom Meteorological Agency
• JWIS — Joint Weather Impacts System
• NWFO — National Weather Service Forecast Office
• PVLT — Prevalent
• TWEB — Transcribed Weather En route Broadcast
• NOW — Short Term Forecast
• QSTNRY — Quasistationary
• VOMIT — VIL Of the Moment In Time
• OCR — Occurrence
• PFD — QPF Discussion
• TCP — Public Tropical Cyclone Advisory
• HIC — Hydrometeorological Information Center
• PSG — Passage
• SWR — State Weather Roundup
• HIGH — High Core Threshold
• SPF — Probability of Tropical Cyclone Conditions
• REC — Recreation Report
• LP — Low Precipitation
• SCS — Spectrum Width Cross Section
• SQLN — Squall Line
• SWP — Severe Weather Probability
• RSIS — Rs Information Services, Inc.
• CBS — Cumulonimbi
• XPCG — Expecting
• WSOM — National Weather Service Operations Manual
• N-AWIPS — National Centers-AWIPS
• MET — Meteorological Teams
• SX — Stability Index
• WBND — West Bound
• SPECIAL — Special Meteorological Report
• TEN — Theta-e Index
• DTRTS — Deteriorates
• TWO — Tropical Weather Outlook
• UN — Unable
• WER — WEAK ECHO REGION

• TL — Till
• SWS — Severe Weather Statement
• DALGT — Day light
• TCM — Tropical Cyclone Forecasts/Advisory
• SNOTEL — Snow Telemetry
• TCU — tropical cyclone update
• THP — Three-Hour Rainfall Rate
• SWWD — Southwestward
• SLOR — Slower
• SLS — Watch Redefining Statement
• VVSTORM — model-based convection algorithm
• TS — Thunderstorm without precipitation
• WRMR — Warmer
• SPA — Subtropical Cyclone Public Advisory
• TSQLS — Thundersqualls
• XPCS — Expects
• TEND — Trend forecast

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