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Scientific & Educational >> Weather Abbreviations

Look through 2217 acronyms and abbreviations related to Weather:

• MIFG — Shallow Fog (METAR Code)
• M2/S2 — Meters squared per second squared
• NB — New Brunswick
• J/KG — Joules per Kilogram
• FIRAV — First Available
• OPS — Operations
• LAN — Local Area Network
• TRRN — Terrain
• ADQTLY — Adequately
• BTWN — Between
• PTNL — Potential
• DLTD — Deleted
• Z DR — Differential Reflectivity
• ABT — About
• ASAP — As Soon As Possible (pronounced AY-sap)
• PLS — Please
• FTP — File Transfer Protocol
• LCLY — Locally
• MSG — Message
• BLDU — Blowing Dust (METAR Code)
• ACCUM — Accumulate
• DATANET — Hydrologic Data Network Analysis Software
• F SCALE — See Fujita Scale
• GUI — Graphical User Interface (goo-ey)
• T.S. — Tropical Storm
• MS — Mississippi
• RFP — Request For Proposal
• B- — Convective Inhibition
• FEMA — Federal Emergency Management Agency
• FWD — Forward
• WX — Weather
• CONTS — Continues
• RF — Radio Frequency
• T. D. — Tropical Depression
• FAA/AWR — Federal Aviation Administration/Aviation Weather Research Division
• D-MAWDS — Digital Marine Weather Dissemination System
• EXTRAP — Extrapolate
• ATTN — Attention
• MOA — Memorandum Of Agreement
• VIP — Very Important Person
• G-AIRMET — Graphical Airmet
• FY — Fiscal Year
• PIXEL — Picture Element
• CHG — Change
• FYI — For Your Information
• GPS — Global Positioning System (ex-NAVSTAR)
• OBSCD — Obscured
• DOD — United States Department of Defense
• FAA/ARW — Federal Aviation Administration/Aviation Requirements - Weather Group
• ACK — Acknowledge (telecommunications; Cf. NAK)

• LYRS — Layers
• INCLS — Includes
• RAOBS — Radiosonde Observations
• N-TFS — New Tactical Forecast System
• CTGY — Category
• SACSMA — Sacramento Soil Moisture Accounting Model
• NSF — National Sanitation Foundation
• TACMET-MOD — Tactical Meteorological Observing System Modification
• LABRDR — Labrador
• WAMPS — Weather Automated Mission Planning Software
• AGC — Automatic Gain Control
• BACLIN — Baroclinic
• ATA — Area Transportation Authority
• OBSCG — Obscuring
• NBFR — Not Before
• FROPA — Frontal Passage
• AFDK — After Dark
• KG — Kilogram
• AL — Alabama
• UPS — United Parcel Service, Inc.
• AGL — Above Ground Level
• DATACOL — The Software System that supports RFC gateway functions
• RQRD — Required
• FLRY — Flurry
• CA — California
• PC — Personal computer (host)
• BLDG — Building
• DABRK — Daybreak
• NLT — Not Later Than
• FAA — Federal Aviation Administration
• SYS — System
• STD — Standard
• CONUS — Continental United States (48 Contiguous States and DC)
• ATC — Air traffic control
• ICAO — International Civil Aviation Organization
• REQSTD — Requested
• SMRY — Summary
• ACFT — Aircraft
• CM — Centimeter
• AK — Alaska
• NTSB — US National Transportation Safety Board
• TNTV — Tentative
• LVL — Level
• HZ — cycles per second (hertz)
• KPA — kiloPascal (pressure above ambient (100 kPa = 1 atmosphere excess))
• BHND — Behind
• AAL — Above Aerodrome Level
• CFO — Communication Filing Officer
• MSL — Mean Sea Level
• LYRD — Layered

• SUFLY — Sufficiently
• UTC — Coordinated Universal Time
• THRUT — Throughout
• ASL — Above Sea Level
• NNNN — End of Message
• IATA — International Air Transport Association
• VHF — Very High Frequency
• RUFLY — Roughly
• APR — April River Airport, April River, Papua New Guinea
• GSA — U.S. General Services Administration
• INFO — Information
• WILCO — Will Comply
• CNCLD — Canceled
• RTRND — Returned
• GND — Ground
• OFC — Office
• DTG — Date-Time Group
• AAAS — American Association for the Advancement of Science
• HJ — Sunrise to sunset
• AMSL — Above Mean Sea Level
• GRT — Great
• TSTMS — Thunderstorms
• MPH — Miles Per Hour
• WWW — World Weather Watch
• MD — Maryland
• SUPSD — Supersede
• USGS — United States Geological Survey (DOI)
• NOAA — National Oceanic and Atmospheric Administration (US)
• BLM — Bureau of Land Management of United States Department of the Interior
• KW — Kilowatt (one thousand watts) (measurement)
• IR — Infrared
• LA — Louisiana
• ALSTG — Altimeter Setting
• SWLY — Southwesterly
• CONT — Continue
• KOCTY — Smoke Over City
• AR — Arkansas
• MIL — Military
• CAT — Category (e.g. CAT-5 cable)
• EXTRM — Extreme
• ACPT — Accept
• S — South
• MIN — Minimum
• LTD — Limited
• ALT — Altitude
• INTMD — Intermediate
• FTE — Full-Time Employee
• TN — Tennessee
• DMG — Damage
• WMO — World Meteorological Organization (ICSU)

• MAX — Maximum
• PM — post meridian
• GEN — General Motors
• NM — Nautical Mile
• OH — Ohio
• CO — Colorado
• CNTRS — Centers
• UT — Utah
• CT — Connecticut
• ETD — Estimated Time of Departure
• UFN — Until Further Notice
• MI — Michigan
• YR — Your
• NEG — NEGative
• PRIN — Principal
• MN — Minnesota
• SD — South Dakota
• MO — Missouri
• UV — Ultraviolet (Light)
• NY — New York
• RFI — Radio Frequency Interference
• SMTM — Sometime
• WIP — Work In Progress (process)
• NGT — Night
• Y2K — Year 2000
• C — Center
• USAF — United States Air Force
• RI — Rhode Island
• RVR — Runway Visual Range
• CW — Continuous Wave
• CONSHELF — Continental Shelf
• PWR — Power
• SEC — Second
• PA — Pennsylvania
• CAVU — Ceiling And Visibility Unlimited
• ACTV — Active
• HTG — Heating
• SNR — Signal-to-Noise Ratio
• PTLY — Partly
• KY — Kentucky
• AVG — Average Voltage Gain
• DEC — December
• AMT — Amount
• NJ — New Jersey
• FCST — Forecast
• VT — Vermont
• EXER — Exercise
• BM — Benchmarking
• POSLY — Positively
• NATL — National

• OR — Oregon
• N — North
• HR — Hour
• DIST — Distance
• LAT — Latitude
• WV — West Virginia
• WAC — World Aeronautical Chart
• DBL — Double
• OTLK — Outlook
• AZ — Arizona
• LMT — Local Mean Time
• WI — Wisconsin
• MA — Massachusetts
• MED — Medium
• SQAL — Squall
• UPS — Uninterruptible Power Supply
• C — Celsius
• NE — Nebraska
• ME — Maine
• ETC — Et Cetera
• CFS — Cubic Feet per Second
• OPMET — Operational Meteorological
• FT — Feet
• COORD — Coordinate
• VOL — Volume
• RTE — Route
• NV — Nevada
• LTR — Later
• STGST — Strongest
• CRS — Course
• NEB — Nebraska
• WO — Without
• FAR — Federal Aviation Regulation
• CLR — Clear
• WEF — With Effect From
• E — East
• CAPE — Convective Available Potential Energy
• SNGL — Single
• THKNS — Thickness
• BCH — Beach
• XPCD — Expected
• TX — TEXAS
• SHSN — Snow Showers (METAR Code)
• BC — British Columbia
• PROD — Produce
• WY — Wyoming
• LST — Local Standard Time
• SEQ — Sequence
• NH — New Hampshire
• ANS — Answer

• KS — Kansas
• NESDIS — National Environmental Satellite, Data, and Information Service
• FLW — Follow
• INCL — Include
• ELEV — Elevator
• SMS — Synchronous Meteorological Satellite
• ADDS — Aviation Digital Data Service
• DISC — Discontinue
• DE — DELAWARE
• PRF — Pulse Repetition Frequency
• MT — Montana
• RH — Relative Humidity
• OK — Oklahoma
• NOV — November
• NC — No Change
• PRIM — Primary
• FD — Winds and Temperatures Aloft Forecasts
• R — Right
• MEX — Mexico
• VFR — Visual Flight Rule
• THRU — Through
• TEMP — Temperature
• ISA — International Standard Atmosphere
• ADQT — Adequate
• GMDSS — Global Maritime Distress and Safety System (IMO)
• REQ — Request
• ACT — Active
• MT — Mountain
• THR — Threshold
• COE — Creek Corps of Engineers
• BLKT — Blanket
• PRODG — Producing
• FLT — Flight
• MOS — Model Output Statistics
• PHYS — Physical
• ASD — Aircraft Situation Display
• JAN — January
• OTR — Other
• OPR — Operator
• CVR — Cover
• QN — Question
• NASA — National Aeronautics and Space Administration (US)
• AUG — August
• WTR — Water
• SW — South West
• W — West
• BLSN — Blowing Snow (METAR Code)
• NAB — Not Above
• F — Degrees Fahrenheit
• CONTD — Continued

• BRK — Break
• AGN — Again
• THK — Thick
• NOTAM — Notice to Airmen
• MCW — Modulated Continuous Wave
• SC — South Carolina
• AFTN — Afternoon
• NS — Nova Scotia
• LMTD — Limited
• OCT — October
• NEC — Necessary
• ABV — Above
• ALQDS — All Quadrants
• RCV — Receive
• BL — Blowing (METAR descriptor)
• POS — Positive
• MCS — Mesoscale Convective System
• PERM — Permanent
• LRG — Large
• HV — Have
• NE — North-East
• NAS — National Airspace System
• DFNT — Definite
• PBL — Planetary Boundary Layer
• SML — Small
• ARINC — Aeronautical Radio Incorporated
• FIG — Figure
• MDFY — Modify
• FZRA — Freezing Rain (METAR Code)
• SIG — Signature
• NXT — Next
• RPT — Repeat
• CRNR — Corner
• VOLMET — Meteorological information for aircraft in flight
• RCVG — Receiving
• Z — Zulu (Greenwich mean time)
• SXNS — Sections
• SMK — Smoke
• MUCAPE — Most Unstable CAPE
• TELCON — Telephone Conversation
• FL — Florida
• LLWAS — Low Level Wind Shear Alert System
• SCNDRY — SECONDARY
• ND — North Dakota
• NEGLY — Negatively
• FZFG — Freezing Fog
• ID — IDentifier
• SHRTLY — Shortly
• HRS — Hours
• PD — Period

• SEP — September
• CLD — Cloud
• AFSS — Automated Flight Service Station
• SH — Showers
• AWIPS — Advanced weather Interactive Processing System (NOAA)
• HGT — Height
• DX — Duplex
• PRESFR — Pressure Falling Rapidly
• POD — Probability Of Detection
• R — Red
• DIR — Directory
• INTL — International
• CDA — Command and Data Acquisition
• AD — Aerodrome
• SARPS — Standards and Recommended Practices
• MNT — Monitor
• CNTRL — Central
• DC — District of Columbia
• ATTM — At This Time
• TYPH — Typhoon
• MLLW — Mean Lower Low Water (nautical Charts)
• INS — Inertial Navigation System
• ETA — Eta model
• LCL — Local
• W — White
• ARTCC — Air Route Traffic Control Center
• GOES — Geostationary Operational Environmental Satellite
• CWT — Combat Weather Team
• RFC — River Forecast Center
• NWS — National Weather Service (formerly U.S. Weather Bureau)
• AC — Altocumulus
• WINTEM — Forecast upper wind and temperature for aviation
• GF — Ground Fog
• WADL — West African Disturbance Line
• MOVD — Moved
• ADJ — Adjacent
• NTFYD — Notified
• PAC — Pacific Region
• WDLY — Widely
• UNAVBL — Unavailable
• NM — New Mexico
• FZDZ — Freezing Drizzle
• FIS — Flight Information Service
• VMC — visual meteorological conditions
• PVA — Positive Vorticity Advection
• ASOS — Automated Surface Observing System
• IL — Illinois
• DCS — Data Collection System (NOAA Polar Orbiting Satellites)
• EPRI — Electric Power Research Institute (US)
• SHWR — Shower

• SNOINCRG — Snow increasing
• AP — Airport
• HOL — Holiday
• DFNTLY — Definitely
• HDRAIN — An Hourly Digital Rainfall Product of the WSR-88D
• SPENES — Satellite precipitation estimate statement
• DCP — Data Collection Platform
• PSN — Position
• LGTD — Lighted
• CAT — Clear Air Turbulence
• DOH — Development and Operations Hydrologist
• FSS — Flight Service Station
• FCSTS — Forecasts
• B — Blue
• AVBL — available
• TCU — Towering Cumulus
• RGT — Right
• WRN — Western
• PROC — Procedure
• TAS — True Airspeed
• TKE — Turbulent Kinetic Energy
• VOR — VHF Omnidirectional Range
• FU — Smoke
• BR — Mist
• CISK — Conditional Instability of the Second Kind
• HWY — Highway
• MCC — Mesoscale Convective Complex
• RTN — Return
• VSBY — Visibility
• HPC — Hydrometeorological Prediction Center
• RCMD — Recommend
• HI — High
• ATCSCC — Air Traffic Control System Command Center
• STN — Station
• VAD — Velocity-Azimuth Display
• TRMTD — Terminated
• FVRBL — Favorable
• MTNS — Mountains
• HZ — Haze (METAR Code)
• LGT — Light
• BRN — Bulk Richardson Number
• TRMM — Tropical Rainfall Measuring Mission (US-Japan)
• TSFRD — Transferred
• LTGCG — Lightning Cloud-to-Ground
• IMC — Instrument Meteorological Conditions
• DRFTG — Drifting
• MID — Middle
• AGRMT — Agreement
• Y — Yellow
• COND — Conditions

• BA — Braking Action
• TMW — Tomorrow
• OTRW — Otherwise
• DFCLT — Difficult
• SRN — Southern
• RCVD — Received
• MAY — May Department Stores Company
• RGN — Region
• MICRO-ART — Microcomputer Automatic Radiotheodolite Master Control Unit
• RDA — Radar Data Acquisition
• FST — First
• BCFG — Fog Patches
• MVFR — Marginal Visual Flight Rules
• DEG — Degree
• SO — Southern Oscillation
• RQRS — Requires
• ALTHO — Although
• ADR — Advisory Route
• EST — Estimate
• NCAR — National Center for Atmospheric Research (US)
• DISCD — Discontinued
• NW — North West
• TRNSP — Transport
• MLW — Mean Low Water (nautical Charts)
• ANLYS — Analysis
• R — Required
• DTRTD — Deteriorated
• LOC — Local
• CDM — Collaborative Decision Making
• PRI — Primary
• NHC — United States National Hurricane Center
• NC — North Carolina
• POSS — Possible
• IFR — Instrument Flight Rules
• ITCZ — Intertropical Convergence Zone (of Seawater)
• EXTD — Extend
• BLDS — Builds
• SXN — Section
• NSSL — National Severe Storms Laboratory
• CNL — Cancel
• HDG — Heading
• LTL — Little
• CONTLY — Continually
• TC — Tropical Cyclone
• V — Velocity
• INU — Inertial Navigation Unit
• JUL — July
• MB — Millibar(s)
• INTVL — Interval
• QUAD — Quadrant

• REPLD — Replaced
• MDL — Model
• INCR — Increase
• PRBLY — Probably
• CMPLX — Complex
• CU — Cumulus
• RESP — Response
• T — Temperature
• AOB — At or Below
• FCSTR — Forecaster
• PW — Precipitable Water
• SFC — Surface
• SHFT — Shift
• HSD — Heavy Snow Discussion
• XBT — expendable bathythermograph (oceanography)
• FIR — Flight Information Region
• LI — Lifted Index
• PDT — Product Development Team
• FLD — Field
• WTSPT — Waterspout
• AFT — Afternoon
• UNKN — Unknown
• EMC — Environmental Modeling Center
• MNM — Minimum
• WUD — Would
• INSTL — Install
• LONG — Longitude
• ACCID — Notification of an aircraft accident
• JAN — January
• IMPT — Important
• AOML — Atlantic Oceanographic and Meteorological Laboratory (Miami, Florida) (ERL)
• NCEP — National Centers For Environmental Prediction (form. NMC; NWS Center)
• NOSIG — No Significant Change
• NRCS — Natural Resources Conservation Service
• MPC — Marine Prediction Center
• YDA — Yesterday
• LCTMP — Little change in temperature
• BYD — Beyond
• SWE — Snow Water Equivalent
• APRX — Approximate
• BWER — Bounded Weak-Echo Region
• PRES — Pressure
• THSD — Thousand
• PUP — Principal User Processor (NEXRAD)
• LEN — Length
• RPRTS — Reports
• COMPARD — Compared
• WV — Water Vapor
• NLY — Northerly
• LIFR — Low Instrument Flight Rules

• ADVCTN — Advection
• GFDL — Geophysical Fluid Dynamics Laboratory (NOAA US)
• BLD — Build
• UNREL — Unreliable
• EXTN — Extension
• SUPSDS — Supersedes
• NBRHD — Neighborhood
• RPTS — Repeats
• TAF — Terminal Aerodrome Forecast
• CNCL — Cancel
• NRN — Northern
• NAV — Navigator
• CNTR — Center
• THTN — Threaten
• AAA — Amended meteorological message
• SPD — speed of pupillary dilation
• SPCLY — Especially
• SRH — Storm-relative Helicity
• VC — Vicinity
• COV — Cover
• FREQ — Frequency
• FPM — Feet Per Minute
• BCKG — Backing
• SUP — Supply
• RECON — Reconnaissance
• VVP — Volume Velocity Processing
• FEW — Few
• AFD — Area Forecast Discussion
• ALERT — Automated Local Evaluation in Real Time
• ADA — Advisory Area
• LLJ — Low Level Jet stream
• PIREP — Pilot (weather) Report
• ARPT — Airport
• SLP — Slope
• ADVY — Advisory
• HWVR — However
• SWEAT INDEX — Severe WEAther Threat Index
• NELY — Northeasterly
• IA — Iowa
• HAZ — Hazard
• DMNT — Dominant
• OML — Operations Manual Letter
• DES — Descend
• VFYD — Verified
• USMC — United States Marine Corporation
• SGFNT — Significant
• INTMT — Intermittent
• IAO — In And Out
• PRSNT — Present
• UVV — Upward Vertical Velocity

• RWY — Runway
• ETIM — ELAPSED TIME
• REPL — Replace
• GFS — Global Forecast System
• BLSA — Blowing Sand (METAR Code)
• AWDS — Automated Weather Distribution System
• KM — Kilometers to Miles
• INTCNTL — Intercontinental
• FEB — February
• AFWA — Air Force Weather Agency
• PRT — Pulse Repetition Time
• LINUX — UNIX-like computer operating system
• MOD — moderate dysplasia
• ARR — Arrive
• LDG — Landing (aviation)
• DEP — Depart
• TURB — Turbulence
• ACC — Area Control Center
• BND — Bound
• JUN — June
• RSTRG — Restricting
• AMDT — Amendment
• NNICE — Neural Network for Icing
• RAOB — Radiosonde Observation
• NMC — National Meteorological Center (US)
• HN — Sunset to sunrise
• SAT — Saturday
• WFO — Weather Forecast Office
• CLRG — Clearing
• FORNN — Forenoon
• VIS — Visible
• TROFS — Troughs
• TURBC — Turbulence
• NCAR/RAP — National Center for Atmospheric Research/Research Applications Program
• THNG — Thinning
• SG — Snow Grains (weather reports)
• CNTY — County
• VER — Vertical
• ROFOR — Route Forecast
• ACLTS — Accelerates
• AZM — Azimuth
• WSR-57 — A NWS Weather Surveillance Radar designed in 1957
• CAEM — Commission for Aeronautical Meteorology (WMO)
• UCAR — University Corporation for Atmospheric Research
• METRO — Metropolitan
• CB — Cumulonimbus
• DZ — Drizzle
• COMPARS — Compares
• EV — every
• DLY — Daily

• CIN — Convective Inhibition
• TROP — Tropopause
• VFYG — Verifying
• SKED — Schedule
• AFOS — Automation of Field Operations and Services
• SMG — Space Flight Meteorology Group
• TURBT — Turbulent
• AMOS — Automated Meteorological Observing System
• APCHS — Approaches
• CI — Cirrus
• SUB — Substitute
• OWS — Operational Weather Squadron
• ADDN — Addition
• WMSCR — Weather Message Switching Center Replacement
• RUC — Rapid Update Cycle
• ADZ — Advise
• WB — Westbound
• VFY — Verify
• SUPS — Supplies
• CNTRD — Centered
• HND — Hundred
• X — Cross
• NVA — Negative Vorticity Advection
• RPG — Radar Product Generator
• VRY — Very
• OAT — Outside Air Temperature
• AGFS — Aviation Gridded Forecast System
• CIG — Ceiling
• ATLC — Atlantic
• VLCTYS — Velocities
• PY — Spray
• DVRG — Diverge
• APCH — approach
• AFWIN — Air Force Weather Information Network
• SBSDD — Subsided
• VR — Veer
• Q — Quadrature
• NCDC — National Climatic Data Center
• THU — Thursday
• NAMIS — NATO Automated Meteorological Information System
• BINOVC — Breaks in overcast
• SHUD — should
• FRZN — Frozen
• TOP — Cloud Top
• AIRMET — AIRman's METeorological Information
• RPRT — Report
• ACPY — Accompany
• ABNML — Abnormal
• WEFAX — Weather Facsimile
• EAA — Experiment Aircraft Association

• WSW — West-southwest
• RTRN — Return
• EXC — Except
• EUMETSAT — European Organization for the Exploitation of Meteorological Satellites
• RSTRD — Restricted
• PUGET — Puget Sound
• UAB — Until Advised By
• SWPC — Space Weather Prediction Center
• CSI — Conditional Symmetric Instability
• FFS — Flash Flood Statement
• RPRTD — Reported
• DRFT — Drift
• CNDN — Canadian
• SLY — Southerly
• AOPA — Aircraft Owners and Pilots Association
• ACLTG — Accelerating
• HVY — Heavy
• ITWS — Integrated Terminal Weather System
• CHSPK — Chesapeake
• EL — Equilibrium Level
• VLY — Valley
• WIBIS — Will Be Issued
• NML — Normal
• RDR — Radar
• LO — Low
• UVVS — Upward Vertical Velocities
• IMPR — Improve
• FRQ — Frequent
• ERN — Eastern
• FM — From
• PPINE — Plan Position Indicates No Echoes
• WMC — World Meteorological Center
• AS — Altostratus
• RVSD — Revised
• DDS — Data Distribution System
• WSR-74 — A NWS Weather Surveillance Radar designed in 1974
• CNFDC — Confidence
• SM — Statute Mile
• UNL — Unlimited
• SS — Sandstorm
• NWP — Numerical Weather Prediction
• TDWR — Terminal Doppler Weather Radar
• TOR — Tornado Warning
• WA — Western Approaches
• ROML — Regional Operations Manual Letter
• LLP — Lightning Location and Protection, Inc
• BDRY — Boundary
• RDC — Reduce
• TWIP — Terminal Weather Information for Pilots
• BKN — Broken

• SST — Sea surface temperature
• LN — Line
• FFW — Flash Flood Warning
• BFR — Before
• DMSHG — Diminishing
• LCTD — Located
• VISSR — visible and infrared spin scan radiometer (GOES)
• ZN — Zone
• RSN — Reason
• IMDTLY — Immediately
• SE — Southeast
• RCRD — Record
• XPLOS — Explosive
• BNDRY — Boundary
• NBAA — National Business Aviation Association, Inc.
• NSW — Nil Significant Weather
• WND — Windsor
• INPR — in progress
• SPC — Storm Prediction Center
• PRBL — Probable
• ACCAS — Altocumulus Castellanus
• INOP — Inoperative
• BCM — Become
• FFG — Flash Flood Guidance
• T — Thunderstorm (weather reports)
• CCL — Convective Condensation Level
• LKLY — Likely
• GA — Georgia
• ARND — Around
• RMK — Remark
• SATFY — Satisfactory
• DNSTRM — Downstream
• CDC — Climate Diagnostics Center
• INVOF — In vicinity of
• ADVYS — Advisories
• VV — Vertical Velocity
• DDS — Domestic Data Service
• RA — Rain
• PCPN — Precipitation
• TNGT — Tonight
• GR — Hail
• ENDG — ending
• ALTM — Altimeter
• CPC — Climate Prediction Center (NWS Center)
• WBZ — Wet-Bulb Zero
• SFERICS — Atmospherics
• NSSFC — National Severe Storms Forecast Center
• WNW — West-northwest
• MULT — Multiple
• G — Green

• SUGG — Suggesting
• NCO — NCEP Central Operations
• PTCHY — Patchy
• BRF — Brief
• SPD — Speed
• THKR — Thicker
• VAS — VISSR Atmospheric Sounder
• SHFTD — Shifted
• COM — Communications Society
• ID — Idaho
• LCTN — Location
• API — Antecedent Precipitation Index
• COT — At the Coast
• LMTG — Limiting
• LAM — Logical acknowledgment
• WI — Within
• CNVTV — Convective
• PRVDD — Provided
• METAR — Meteorological Terminal Aviation Routine Weather Report
• PRST — Persist
• BASE — Cloud base
• WKEND — Weekend
• MAR — March
• NNW — North-Northwest
• WER — WEAK ECHO REGION
• WSWLY — West-Southwesterly
• ABNDT — Abundant
• RHI — Range-Height Indicator
• LSR — Local Storm Report
• PRESRR — Pressure Rising Rapidly
• SHFTG — Shifting
• VIP — Video Integrator and Processor
• REQS — Requests
• SMWHT — Somewhat
• CRC — Circle
• MTN — Mountain
• GAMA — General Aviation Manufacturers Association's
• BGN — Begin
• THNR — Thinner
• RMNG — Remaining
• PROB — probability
• FMT — Format
• NNE — North-North-East
• TSTM — Thunderstorm
• FLG — Flashing
• ENCTR — Encounter
• NEXRAD — Next-Generation Weather Radar (NWS)
• UPR — Upper
• MCIDAS — Man-computer Interactive Data Access System
• RQR — Require

• ESTAB — Establish
• CPBL — Capable
• CUFRA — Cumulus Fractus
• WSFOS — Weather Service Forecast Offices
• KLYR — Smoke Layer Aloft
• SN — Snow
• AOB — Aviation Operations Branch
• UIR — Upper Flight Information Region
• VIL — Vertically-Integrated Liquid water
• VRB — Variable
• NFDRS — National Fire Danger Rating System
• RCH — Reach
• CRCLN — Circulation
• SMPDBK — The Simplified Dam Break Model
• SHRT — Short
• RQRG — Requiring
• WB — Weather Bureau
• MIDN — Midnight
• ACARS — ARINC Communications Addressing and Reporting System
• XNG — Crossing
• OPN — Open
• TDL — Techniques Development Laboratory
• AMIS — Automated Meteorological Information System
• FG — Fog Gun
• TSNT — Transient
• TRNSPG — Transporting
• GEO — Geographic
• NR — Number
• OVR — Over
• STG — Strong
• OAC — Oceanic Area Control Center
• LTG — Lightning
• EB — Eastbound
• PEN — Peninsula
• LVLS — Levels
• CD — Climatological Data
• ALF — Aloft
• FSL — Forecast Systems Laboratory (a NOAA ERL)
• BLO — Below
• EHI — Energy Helicity Index
• INDCD — Indicated
• RGNS — Regions
• SWO — Staff Weather Officers
• UCP — Unit Control Position
• LK — Lake
• OVNGT — Overnight
• AWOS — Automated Weather Observation System
• PTNLY — Potentially
• STFRM — Stratiform
• ZR — Freezing Rain

• AHOS-S — Automatic Hydrologic Observing System - Satellite
• SUG — Suggest
• FLUC — fluctuation
• BAMS — Bulletin of the American Meteorological Society
• TSFR — Transfer
• THKNG — Thickening
• FA — Area Forecast
• FAR — False Alarm Ratio
• WRNG — Warning
• OUBD — Outbound
• DVLPMT — Development
• APCHG — Approaching
• TSB — Technical Support Branch
• VAL — Valley
• ICGIC — Icing in Clouds
• MNLY — Mainly
• AIV — Aviation Impact Variable
• OCS — Oklahoma Climatological Survey
• PRECD — Precede
• WRNGS — Warnings
• SMTH — Smooth
• PARL — Parallel
• UNSTLD — Unsettled
• SRND — Surround
• KT — Knots
• ERL — Environmental Research Laboratories (absorbed By OAR Or NOAA Research)
• ZNS — Zones
• RTRNS — Returns
• MST — Mosta
• TT — Teletype
• DPNG — Deepening
• DLT — Delete
• DPTH — Depth
• CAA — Cold Air Advection
• DNR — Department of Natural Resources
• WINT — Winter
• SASK — Saskatchewan
• NIL — None
• FNCTN — Function
• PNHDL — Panhandle
• SHWRS — Showers
• ST — Stratus
• LTGCC — Lightning Cloud-to-Cloud
• OVTK — Overtake
• CNTRLN — Centerline
• WKNS — Weakens
• INSTF — Intensify
• SCA — Small Craft Advisory
• LOT — Local Office Team
• CYC — Cyclonic

• DIFAX — Digital Facsimile
• IMT — immediate
• BRM — Barometer
• TRMTS — Terminates
• TWDS — Towards
• SSWWD — South-Southwestward
• INP — If Not Possible
• OVC — Overcast (METAR Code)
• RMNDR — Remainder
• CFP — Cold Front Passage
• APST — Aviation Products and Services Team
• NAWAU — National Aviation Weather Advisory Unit
• TIL — Until
• ULJ — Upper-Level Jet
• SUF — Sufficient
• WAA — Warm Air Advection
• ERY — Early
• OPS-II — Operational Weather Squadron Production System II
• WNWLY — West-northwesterly
• SDF — Second-Day Feet
• DISRED — Disregarded
• INBD — Inbound
• HURCN — Hurricane
• VLYS — Valleys
• CDB — Computing Development Branch
• CUF — Cumuliform
• DVLP — Develop
• USWB — United States Weather Bureau
• TOVC — Top of Overcast
• LEWP — Line Echo Wave Pattern
• NEXRAD — Next Generation Weather Radar
• STNRY — Stationary
• DEGS — Degrees
• AWT — Awaiting Trial
• PRSTNC — Persistence
• HPA — Hectapascal
• LMTS — Limits
• EXP — Expect
• CDFNT — Cold Front
• THDR — Thunder
• AFTN — Air Force Television Network
• ADM — Administrative Messages
• GV — Ground Visibility
• QBI — Compulsory IFR flight
• SIGMET — Significant Meteorological Advisory
• AVN — Aviation Model
• ACTVTY — Activity
• ROTD — Rotated
• PRBLTY — Probability
• FRZ — Freeze

• WLY — Westerly
• AC — Anticipated Convection Outlook
• WND — Wind
• ACSL — Altocumulus Standing Lenticular
• FAM — Familiar
• HEL — Helicopter
• ADVN — Advance
• HIFOR — High Level Forecast
• REPLG — Replacing
• PSND — Positioned
• BLW — Below
• HPD — Hourly Precipitation Data
• ADL — Additional
• RCHD — Reached
• CADAS — Centralized Automated Data Acquisition System
• ETA — estimating arrival
• ALTA — Alberta
• RIOGD — Rio Grande
• LYR — Layer
• MSTR — Moisture
• EFCT — Effect
• RPLC — Replace
• PRECDG — Preceding
• HLYR — Haze Layer Aloft
• DMSH — Diminish
• AFW — Air Force Weather
• CHGD — Changed
• CS — Cirrostratus
• NMRS — Numerous
• INCRD — Increased
• TPC — Tropical Prediction Center
• AFCTD — Affected
• PRSTNT — Persistent
• FQT — Frequent
• EPV — Equivalent Potential Vorticity
• SHEFPARS — A software decoder for SHEF Data
• FLWG — Following
• ESEWD — East-Southeastward
• MIC — Meteorologist-In-Charge
• RFD — Rear Flank Downdraft
• OFP — Occluded Frontal Passage
• VCY — Vicinity
• WIST — Weather Information for Surface Transportation
• RCM — Radar Coded Message
• AFCTG — Affecting
• COMET — Cooperative Program for Operational Meteorology, Education and Training
• ACYC — Anticyclone
• NCCF — NOAA Central Computer Facility
• TVS — Tornado Vortex Signature
• YKN — Yukon

• SCND — Second
• WSHFT — Wind Shift
• CLKWS — Clockwise
• FRMG — Forming
• BGNG — Beginning
• RVA — River Summary
• WKDAY — Weekday
• KBDI — Keetch-Byram Drought Index
• SKC — Sky Clear
• RSNS — Reasons
• PUP — Principle User Processor
• DSIPT — Dissipate
• RPRTG — Reporting
• TDO — Tornado
• EC — Environment Canada
• FAH — Fahrenheit
• DOM — Domestic
• MTW — Mountain Waves
• ADVS — Advisory Service
• USWRP — United States Weather Research Program
• RPLCS — Replaces
• ERD — Excessive Rainfall Discussion
• SBSD — Subside
• WK — Weak
• ETA — Greek letter, describes a constant height coordinate model system
• WL — will
• TRPCD — Tropical Continental
• ROC — Rate of Climb
• TRML — Terminal
• AOA — At or Above
• OVRN — Overrun
• DNSLP — Downslope
• CONS — Continuous
• ACLT — Accelerate
• BECMG — Becoming
• DTRTG — Deteriorating
• BLZD — Blizzard
• BRG — Branching
• AMPG — Amplifying
• WSHFTS — Wind Shifts
• STF — Stratiform
• BTL — Between layers
• TROF — Trough
• SCTR — Sector
• DISRE — Disregard
• QPFHSD — Ncep Heavy Snow Discussion
• HADS — Hydrometeorological Automated Data System
• URG — Urgent
• AHD — Ahead
• DUR — Duration

• QUE — Quebec
• ADVCTD — Advected
• RTRNG — Returning
• VRISL — Vancouver Island, BC
• IMDT — Immediate
• PDS — Periods
• CAVOK — conditions
• AMDD — Amended
• SPKLS — Sprinkles
• FC — Funnel Cloud
• VIL — Vertically Integrated Liquid
• HSF — High Seas Forecasts
• PRVDS — Provides
• CAFTI — Committee on Analysis and Forecast Techniques Implementation
• XTRM — Extreme
• AWHPS — Area Wide Hydrologic Prediction System
• RPTG — Repeating
• AAWU — Alaskan Aviation Weather Unit
• RPD — Rapid
• IPV — Improve
• RSTR — Restrict
• GEMPAK — General Environmental Meteorological Package
• NEW ENG — New England
• EXCP — Except
• MDLS — Models
• OMTNS — Over Mountains
• CHGS — Changes
• SBLI — Lifted Index calculated using surfaced based parcel
• RE — Regard
• NC — National Center
• METOC — Meteorological and Oceanographic
• RTD — Delayed
• OTP — On Top
• NGM — Nested Grid Model
• SVG — Serving
• STBL — Stable
• LLWS — Low Level Wind Shear
• WAFS — World Area Forecast System
• DSND — Descend
• PIREP — Pilot Report
• SQSN — Snow Squalls
• KMH — Kilometers per hour
• VRT MOTN — Vertical Motion
• TSFRS — Transfers
• BT — Bathythermograph
• CANAM — Canadian/American
• MORENET — Missouri Research & Education Network
• OFCM — Office of the Federal Coordinator for Meteorological Services and Supporting Research
• AGRS — Agrees
• GAI — Global Atmospherics Inc

• WRMST — Warmest
• RMN — Remain
• EWD — Eastward
• NMBRS — Numbers
• TF — Terminal Forecast
• STLT — Satellite
• PS — Plus
• SHFTS — Shifts
• VLNT — Violent
• OBST — Obstacle
• PDMT — Predominant
• CNCLG — Cancelling
• INDC — indicate
• OSO — Office of Systems Operations
• BLKTS — Blankets
• BRS — Branches
• WTU — Weather Technology Unit
• HRZN — Horizon
• MWO — Meteorological Watch Office
• MCD — Mesoscale Discussion
• SLD — Supercooled Large Drops
• IP — Ice Pellets
• ATAD — Automated Telephone Answering Device
• LGRNG — Long Range
• CC — Cirrocumulus
• CLDS — Clouds
• AIRMET — Airman's Meteorological advisory
• NTFY — Notify
• COMPAR — Compare
• CARIB — Caribbean
• DURN — Duration
• MAY — Mayaro
• OCLN — Occlusion
• TOPS — Tops
• NAT — North Atlantic
• CCLKWS — Counter-Clockwise
• WID — Width
• RSNG — Reasoning
• AMD — amend
• ESPINIT — ESP Initialization Program
• HLF — Half
• INC — in cloud
• DVV — Downward Vertical Velocity
• APRNT — Apparent
• PSBL — Possible
• CEM — Civil Emergency Message
• NADIN — National Airspace Data Interchange Network
• DEV — Deviation
• AMP — Amplify
• DLA — Delay

• SPOT — Spot Wind
• OCNL — Occasional
• RAFS — Regional Analysis and Forecasting System
• AHOS-T — Automatic Hydrologic Observing System - Telephone
• GEOREF — Geographical reference
• TCNTL — Transcontinental
• STNS — Stations
• ENHNC — Enhance
• DSIPTN — Dissipation
• BDA — Bermuda Island
• XTRMLY — Extremely
• SPRD — Spread
• RW — Rain Shower
• APRNTLY — Apparently
• NSC — Nil Significant Cloud
• INDCG — Indicating
• DSCNT — Descent
• ELNGT — Elongate
• NCWX — No Change in Weather
• ADVCT — Advect
• AFT — After
• SAW — Preliminary Notification of Forthcoming Watch
• SMTHR — Smoother
• HYR — Higher
• ADVIS — Headwater Advisory Program
• SUPG — Supplying
• ICG — Icing
• MAP — Mean Areal Precipitation
• WVS — Waves
• TIP — Until past
• APRXLY — Approximately
• WRS — Worse
• QG — An abbreviation for quasigeostrophic
• TEMPO — Temporary
• OTW — Owning The Weather
• OBS — Observe
• FZ — Freezing
• MPL — Max Parcel Level
• LONGL — Longitudinal
• RSG — Rising
• RE — Recent
• ASSOCN — Association
• PSBLTY — Possibility
• SSW — South Southwest
• SS — Sunset
• XS — Atmospherics
• INTSFYS — Intensifies
• QFE — Atmospheric Pressure At Aerodrome Elevation
• DIF — Diffuse
• CASC — Central Administrative Support Center

• INDEF — Indefinite
• DSF — Day-Second Feet
• UDDF — Up and Down Drafts
• SEV — Severe
• HTC — The Hydrometeorological Training Council
• WED — Wednesday
• SELS — SEvere Local Storms Unit
• RES — Reserve
• ESNTL — Essential
• EFF — Experimental Forecast Facility
• PROG — Forecast
• RAFC — Regional Area Forecast Center
• MRNG — Morning
• WWD — Westward (weather reports)
• NAVPACMETOCCEN — Naval Pacific Meteorology and Oceanography Center, Pearl Harbor, Hawaii
• AWC — Aviation Weather Center
• FLG — Falling
• NOHRSC — The National Operational Hydrologic Remote Sensing Center
• SUGS — Suggests
• TDA — Today
• SLD — Solid
• ARTYMET — Artillery Meteorological
• IPVG — Improving
• DSTC — Distance
• RCS — Reflectivity Cross Section
• DVRGG — Diverging
• DLAD — Delayed
• LFM — Limited Fine Mesh
• ASSOCD — Associated
• RCMDD — Recommended
• CDFS — Cloud Depiction and Forecast System
• TR — Track
• PSG — Passing
• NMBR — Number
• ACRS — Across
• FRI — Friday
• AFCT — affect
• DRZL — Drizzle
• INTSFYG — Intensifying
• INCLD — Included
• R — Reduction
• CONTRAILS — Condensation Trails
• FRM — Form
• VOR — VHF Omnidirectional Radio Range
• DMGD — Damaged
• GOES — Geostationary Orbiting Environmental Satellite
• CSTAR — Collaborative Science, Technology and Applied Research
• ADVCTG — Advecting
• CONTDVD — Continental Divide
• ADVCTS — Advects

• TRBL — Trouble
• DAPM — The Data Acquisition Program Manager
• NWSTC — National Weather Service Training Center
• PSCZ — Puget Sound Convergence Zone
• SPECI — Aviation selected special weather report
• AMDG — Amending
• EMBD — Embedded in a layer
• EVE — Evening
• CRCLC — Circulate
• SLW — Slow
• MON — Monday
• UNRSTD — Unrestricted
• CIGS — Ceilings
• MHKVLY — Mohawk Valley
• INCRS — Increases
• RVS — Revise
• JMA — Japanese Meteorological Agency
• MLLI — Mean Layer Lifted Index
• ARAM — Aviation, Range and Aerospace Meteorology
• VCNTY — Vicinity
• ISOL — Isolate
• ENELY — East-northeasterly
• AWSS — Aviation Weather Sensor System
• AWN — Automated Weather Network
• DVRGNC — Divergence
• RMNS — Remains
• WSFO — Weather Service Forecast Office
• XPC — Expect
• DSIPTG — Dissipating
• SR — Sunrise
• ASH — Assistant Service Hydrologist
• WIMS — Weather Information Management System
• ANBURS — Alphanumeric Backup Replacement System
• CTSKLS — Catskills
• ADRNDCK — Adirondack
• REP — Report
• SPDS — Speeds
• KFRST — Killing Frost
• RPLCD — Replaced
• MSTLY — Mostly
• SBCAPE — CAPE calculated using a Surface based parcel
• WTRS — Waters
• VCTR — Vector
• NFLD — Newfoundland
• ALG — Along
• OCFNT — Occluded Front
• APSG — After passing
• EXCLV — Exclusive
• IC — Ice Crystals
• SEWD — Southeastward

• SQ — Squall
• TWI — Twilight
• SBSDS — Subsides
• OM — Office of Meteorology
• NRW — Narrow
• INTSTY — Intensity
• DTRT — Deteriorate
• ESERN — East-Southeastern
• WCM — Warning Coordination Meteorologist
• MDCRS — Meteorological Data Communications and Reporting System
• OSV — Ocean Station Vessel
• AVARS — Aircraft Vertical Acceleration Reporting System
• NWSRFS V5.0 — National Weather Service River Forecast Model Version 5
• SYNS — Synopsis
• QPF — Quantitative Precipitation Forecast
• SHLD — SHieLD
• RVS — River Statement
• TRMT — Terminate
• CONTG — Continuing
• LTGCW — Lightning Cloud-to-Water
• NLDN — National Lightning Detection Network
• LGWV — Long Wave
• NWB — North-westbound
• NRLY — Nearly
• BGNS — Begins
• OU — University of Oklahoma
• EMERG — Emergency
• ZL — Freezing Drizzle
• DAMBRK — The Dam Break Forecasting Model
• XTNDG — Extending
• BRKS — Breaks
• SAWRS — Supplementary Aviation Weather Reporting Station
• CSW — Committee for Space Weather
• PRECDD — Preceded
• TRMTG — Terminating
• PRVD — Provide
• MMS-P — Meteorological Measuring System-Profiler
• JCTN — Junction
• LTST — Latest
• HDWND — Head Wind
• RGLR — Regular
• TFU — Theater Forecast Unit
• DP — Deep
• FT — Terminal Forecast
• INTST — Intensity
• DVRGS — Diverges
• GLFMEX — Gulf of Mexico
• OHD — Overhead
• CLA — Clear type of ice formation
• FNTS — Fronts

• OCLDD — Occluded
• OBSC — Obscure
• PSBLY — Possibly
• HDSVLY — Hudson Valley
• DSNT — Distant
• THTNS — Threatens
• SRY — Secondary
• CBMAM — Cumulonimbus Mammatus
• U/S — Unserviceable
• WS — Wind Shear
• FAWS — Flight Advisory Weather Service
• CIP — Current Icing Potential
• TWRG — Towering
• BNDRYS — Boundaries
• BD — Blowing Dust
• HMD — Hemispheric Map Discussion
• ERYR — Earlier
• ICGIP — Icing in Precipitation
• FNTL — Frontal
• DELMARVA — Delaware-Maryland-Virginia
• APPRG — Appearing
• INSTBY — Instability
• DWOPER — Dynamic Wave Routing Model
• TRW — Thunderstorm
• SUN — Sunday
• RTA — Remote to AFOS
• PRVDG — Providing
• LWR — Lower
• FOS — FAMILY OF SERVICES
• CASCDS — Cascades
• HVYST — Heaviest
• LKS — Lakes
• OCNLY — Occasionally
• GTG — Graphical Turbulence Guidance
• MDFYD — Modified
• SCT — Scattered
• RTVS — Real Time Verification System
• DVLPD — Developed
• FTHR — Further
• VSA — By Visual Reference to the Ground
• MCIDAS — Man Computer Interactive Data Acquisition System
• SLOLY — Slowly
• ACLTD — Accelerated
• METAR — Meteorological Aviation Report
• DBNET — Distributed Brokered Networking
• IMPLS — Impulses
• NOPAC — Northern Pacific
• ITT — Information Technology Team
• TMPRYLY — Temporarily
• SAP — As soon as possible

• SUPR — Superior
• RMND — Remained
• GLFALSK — Gulf of Alaska
• EXPCG — Expecting
• IWEDA — Integrated Weather Effects Decision Aid
• JTSTR — Jet Stream
• BAJA — Baja California
• RAM — Regional Area Meteorologist
• APPR — Appear
• INVRN — Inversion
• WDSPR — Widespread
• FAX — Facsimile Transmission
• MOV — Move
• DCR — Decrease
• UNSTBL — Unstable
• NWLY — Northwesterly
• WETM — Weather Team
• BLDUP — Buildup
• RSTRS — Restricts
• WFP — Warm Front Passage
• BFDK — Before Dark
• WARP — Weather and Radar Processor
• THTNG — Threatening
• FPO — Flood Potential Outlook
• CHGG — Changing
• SEPN — Separation
• BRKHIC — Breaks in higher clouds
• MAREP — Marine Reporting Program
• WSR-88D — Weather Surveillance Radar - 1988 Doppler
• TPG — Topping
• MRGL — Marginal
• ALUTN — Aleutian
• NWSH — National Weather Service Headquarters
• OVRNG — Overrunning
• FG — Foggia
• ARCUS — Arc Cloud
• MBRFC — Missouri Basin River Forecast Center
• NB — NorthBound
• GRID — Processed meteorological data in the form of grid point values
• MAN — Manitoba
• MEGG — Merging
• SAOS — Surface Observations
• ISCS — International Satellite Communications System
• FIC — Flight Information Center
• RCMDG — Recommending
• NOWCAST — Short Term Forecast
• ICE — icing
• EXTRAPD — Extrapolated
• SIERNEV — Sierra Nevada
• LRGR — Larger

• UVM — Upward Vertical Motion
• ENRT — En Route
• EXTSV — Extensive
• SWODY2 — Day 2 Convective Outlook
• KMARD — Kansas Modernization and Restructuring Demonstration
• ROD — Rate Of Descent
• VGF — Virtual Graphics File
• PLVL — Present Level
• SVRL — Several
• PROGD — Forecasted
• SLO — Slow
• XTNDD — Extended
• CWF — Combat Weather Flight
• MARD — Modernization and Restructuring Demonstration
• LDADS — Local Data Acquisition and Dissemination System
• ELSW — Elsewhere
• EPD — Extended Forecast Discussion
• MDS — Minimum Discernible Signal
• TMPRY — Temporary
• CCSL — Cirrocumulus Standing Lenticular
• BLKTG — Blanketing
• LPATS — Lightning Position And Tracking System
• TAWS — Tactical Acquisition Weather Software
• AGRD — Agreed
• RVSS — Revises
• CGEN — Convective Sigmet Generation
• NWD — Northward
• PL — Ice Pellets or Sleet
• INTS — intense
• ATDTDCS — Automated Tone Dial Telephone Data Collection System
• WEA — Weather
• RPLCG — Replacing
• CAAM — Computer Assisted Artillery Meteorology
• SELY — Southeasterly
• CWA — Center Weather Advisory - CWSU
• LV — Leaving
• GRTLKS — Great Lakes
• DALGT — Day light
• ECMWF — European Center for Medium-Range Weather Forecasting model
• EXCLVLY — Exclusively
• ISOLD — Isolated
• GRTLY — Greatly
• WDI — Wind Direction Indicator
• RCKYS — Rockies
• ESA — Electronic Systems Analyst
• ENSO — El Niño and Southern Oscilation
• RVF — River Forecast
• TNDCYS — Tendencies
• PRSNTLY — Presently
• THD — Thunderhead

• TSSN — Thundersnow
• NWSEO — National Weather Service Employees Organization
• SNFLK — Snow flake
• FIAS — Flight Information Advisory Service
• NATA — National Air Transportation Assoc.
• SRNDG — Surrounding
• CLEICEIO — Great Lakes 5-Day Ice Outlook
• NNELY — North-northeasterly
• SLPG — Sloping
• COOR — Co-ordinate
• CVRD — Covered
• DISREG — Disregarding
• SGFNTLY — Significantly
• RLBL — Reliable
• NAP — NCEP Advisory Panel
• ROTG — Rotating
• RCMDS — Recommends
• CLEGLFGLS — Great Lakes Marine Synopsis
• RGL — Regional Model
• FLRYS — Flurries
• LSQ — Line Squall
• ART — Automatic Radio Theodolite Master Control Unit As
• CVRS — Covers
• VRBL — Variable
• TWEB — Transcribed Weather En route Broadcast
• VORT — Vorticity
• ADVNG — Advancing
• GRDL — Gradual
• ESELY — East-southeasterly
• SHEF — Standard Hydrologic Exchange Format
• NCDB — NCEP Computer Development Branch
• ZE — Equivalent Radar Reflectivity
• SWODY1 — Day 1 Convective Outlook
• TSRA — Thunderstorm with rain
• SPECIAL — Special Meteorological Report
• CVRG — Covering
• VFYS — Verifies
• RPDLY — Rapidly
• LRGLY — Largely
• UNA — Unable
• FNT — Front
• CRNRS — Corners
• SHARP — Skew-T Hodograph Analysis and Research Program
• T — Thunder
• RAG — Ragged
• PQPF — probabilistic quantitative precipitation forecast
• WRM — Warm
• SNWFL — Snowfall
• SIGWX — Significant Weather
• REPLS — Replaces

• SHRTWV — Shortwave
• MS — Minus
• CNVGNC — Convergence
• LAN — Inland
• DGNL — Diagonal
• USACE — Unites States Army Corps of Engineers
• DMSHD — Diminished
• SCTD — Scattered
• ESTS — Estimates
• EXPCD — Expected
• RL — Report Leaving
• DMSHS — Diminishes
• FCSTD — Forecasted
• MESO — Mesoscale Convective Unit
• UNEC — UnNECessary
• SSHP — Site Specific Hydrologic Prediction System
• LDM — Local Data Manager
• XTND — Extend
• SLT — Sleet
• FDR — Fire Danger Rating
• STMS — Storms
• RDVLP — Redevelop
• LTGIC — Lightning in Cloud
• MDFYG — Modifying
• ASIST — Aviation Safety Investment Strategy Team
• DMGG — Damaging
• GRAD — Gradient
• PLNS — Plains
• LFTG — Lifting
• AHOS — Automatic Hydrologic Observing System
• CMFC — Coordinating METOC Forecast Center
• FRWF — Forecast Wind Factor
• SPRL — Spiral
• DCRS — Decreases
• EXTDD — Extended
• LTGCCCG — Lightning cloud-to-cloud cloud-to-ground
• TAFB — Tropical Analysis and Forecast Branch
• FRZG — Freezing
• SEL — Severe Thunderstorm Watch, Tornado Watch
• ASMD — As amended
• RNFL — Rainfall
• CSTL — Coastal
• SMW — Special Marine Warning
• FCMSSR — Federal Committee for Meteorological Services and Supporting Research
• OCWWS — Office of Climate, Water and Weather Services
• BCMG — Becoming
• GSTY — Gusty
• DIGG — Digging
• KCFB — Kansas City Federal Building
• SLGT — Slight

• LWRG — Lowering
• PWO — Public Severe Weather Outlook
• UNRELBL — Unreliable
• NACA — National Advisory Committee on Aeronautics
• UPDFTS — Updrafts
• BRKG — Breaking
• XCP — Except
• STGR — Stronger
• NWR — NOAA Weather Radio
• GLFCAL — Gulf of California
• STDY — Steady
• NEXRAD — NEXt generation of weather RADar
• MRTM — Maritime
• VWP — Velocity Azimuth Display Wind Profile
• WAFC — World Area Forecast Center
• NNWLY — North-northwesterly
• INTR — Interior
• DFRS — Differs
• EXPC — Expect
• ATWIS — Advanced Transportation Weather Information System
• CPHC — Central Pacific Hurricane Center
• SNW — Snow
• SPLNS — Southern Plains
• CLEGLOCLE — Great Lakes Storm Outlook
• DCRG — Decreasing
• DFUS — Diffuse
• ROBEX — Regional OPMET bulletin exchange
• MESO — Mesoscale
• CBOFS — Chesapeake Bay Oceanographic Forecasting System
• PC-GRIDDS — Pc-Gridded Interactive Display and Diagnostic System
• NESDIS/SAB — National Environmental Satellite, Data and Information Service/Satellite Analysis Branch
• SWAFS — Space Weather Analysis and Forecasting System
• RSMC — Regional/Specialized Meteorological Centers
• FFA — Flood
• RCHS — Reaches
• ROT — Rotate
• STM — Storm
• TSFRG — Transferring
• DSNDG — Descending
• VRS — Veers
• LEVEL — Level
• AMS — American Meteorology Society
• HRL — The Hydrological Research Laboratory
• MRGLLY — Marginally
• GRDLY — Gradually
• SNST — Sunset
• RVI — River Ice Statement
• NAVMETOCCOM — Naval Meteorology and Oceanography Command
• SVR — Severe
• MLOS — Microwave Line-Of-Site

• DSIPTD — Dissipated
• INTMTLY — Intermittently
• HUD — Housing and Urban Development, U.S. Department of
• GRTR — Greater
• CNVG — Converge
• CWA — County Warning Area
• SWB — South-Westbound
• SFD — STATE FORECAST DISCUSSION
• WRMFNT — Warm Front
• CNVGG — Converging
• TUE — Tuesday
• USBR — US Bureau of Reclamation
• GSTS — Gusts
• PSG — Passage
• NS — Nimbostratus
• WSP — Weather Systems Processor
• RAWS — Remote Automatic Weather Station
• PRIND — Present indications are
• CWSU — Center Weather Service Unit
• PRECDS — Precedes
• GNDFG — Ground Fog
• SWOMCD — SELS Mesoscale Discussion
• DSTBLZG — Destabilizing
• RCVS — Receives
• FVT — Forecast Verification Tool
• ROSA — Remote Observing System Automation
• SUBTRPCL — Subtropical
• INTRP — Interrupt
• FRST — Frost
• IIDA — Integrated Icing Diagnostic Algorithm
• CAPS — Center for Analysis and Prediction of Storms
• FCSTG — Forecasting
• SWD — Southward
• SERN — Southeastern
• LN — Line Network
• RCRDS — Records
• OCRS — Occurs
• EVAD — Extended Velocity
• STBLTY — Stability
• OHP — One-Hour Rainfall Rate
• EXTRMLY — Extremely
• BLKHLS — Black Hills
• ESF — Flood Potential Outlook
• DCRD — Decreased
• DUC — Dense Upper Cloud
• ELNGTD — Elongated
• DKTS — Dakotas
• SIMUL — Simultaneous
• PROGS — Forecasts
• WNDS — Winds

• ASC — Aviation Services Coordinator
• SAMEX — Storm and Mesoscale Ensemble Experiment
• BPAA — Business Pilots Aircraft Association
• THN — Thin
• NBND — Northbound
• WKNG — Weakening
• SSE — South-Southeast
• WWS — Severe Weather Watches
• BCMS — Becomes
• CDFNTL — Cold frontal
• LWRD — Lowered
• FRMN — Formation
• NERN — Northeastern
• INTRMTRGN — Intermountain Region
• TSIP — Thundersleet
• ASAPTRAN — The software component of ASA
• PVL — Prevail
• CLEGLSCLE — Great Lakes Storm Summary
• IOVC — In Overcast
• FCEXEC — A component of the NWSRFS FCST Program
• PMD — Prognostic Discussion
• CWF — Coastal Marine Forecasts
• ALGHNY — Allegheny
• INTSFCN — Intensification
• EMBDD — Embedded
• KU — University of Kansas
• HMT — Hydrometeorological Technicians
• MWAVE — Mountain Wave Algorithm
• TRSN — Transition
• NIDS — NEXRAD Information Dissemination Service
• SAO — Surface observation
• FLN — National Flood Summary
• AMDAR — Automatic Meteorological Data And Reporting
• CNCLS — Cancels
• IOS — Integrated Operational Services
• INLD — Inland
• OSD — Office of Systems Development
• ASB — Aviation Support Branch
• CNIF — Calibration Network Information Files
• TNTVLY — Tentatively
• SBND — South bound
• USBL — Usable
• GICG — Glaze Icing
• DGNLLY — Diagonally
• NWP — Numerical Weather Predication
• DPNS — Deepens
• NEWD — Northeastward
• WIDA — Weather Impact Decision Aids
• PPI — Plane Position Indicator
• MTU — Metric units

• SIGMET — Significant Meteorlogical Information
• MOVG — Moving
• EPSCOR — Experimental Program for the Stimulation of Competitive Research
• INTSFYD — Intensified
• MXD — Mixed
• SRNDS — Surrounds
• RADAT — RADiosonde Observation Data
• TRIB — Tributary
• NAVTEX — Navigational Telex
• MOVS — Moves
• HSB — Hydrologic Systems Branch in the Office of Hydrology
• SSWLY — South-Southwesterly
• ONSHR — Onshore
• DVLPS — Develops
• CLRS — Clears
• STGLY — Strongly
• DNS — Dense
• UNUSBL — Unusable
• G — Gust
• WRS — Weather Reconnaissance Squadron
• HVYR — Heavier
• GOM — Global Ocean Model
• SWI — Showalter Index
• VDUC — VAS Data Utilization Center
• DURG — During
• FROSFC — Frontal Surface
• IFLOWS — The Integrated Flood Observing and Warning System
• RAMSDIS — RAMM Advanced Meteorological Satellite Demonstration and Interpretation System
• QPFSPD — Nmc Special Precipitation Discussion
• DSTBLZ — Destabilize
• DVLPG — Developing
• RESTR — Restrict
• TWR — Tactical Weather Radar
• TAMU — Tropical Aviation Meteorological Unit
• WIE — With Immediate Effect
• SMLR — Smaller
• SPRDG — Spreading
• IMPL — Impulse
• DIV — Divert
• APLCN — Appalachian
• VA — Virginia Ash
• FOUS — Forecast Output United States
• IFFDP — International Flight Folder Documentation Program
• HIER — Higher
• SA — Surface observation
• CWS — Combat Weather Squadron
• WKN — Weaken
• DLTG — Deleting
• XPCG — Expecting
• HPC — Weather Prediction Center

• STFR — Stratus Fractus
• MOVMT — Movement
• HLSTO — Hailstones
• OFF — Offshore Forecast
• RGD — Ragged
• RLTV — Relative
• UNSTDY — Unsteady
• PVLG — Prevailing
• OUTFLO — Outflow
• MAY — Maysville
• PWS — Precipitable Waters
• RS — Receiver station
• ARFOR — Area Forecast
• DU — Dust
• RDGG — Ridging
• CLEICEFBO — Great Lakes Freeze-Up Outlook
• HDFRZ — Hard Freeze
• MULI — Most Unstable Lifted Index
• EXTDG — Extending
• CNTYS — Counties
• SD — Storm Data
• OCRG — Occurring
• ETC — Echo Tops Contour
• LIS — Lifted indices
• SP — Snow Pellets
• OCLDG — Occluding
• DMCC — DOE Meteorological Coordinating Council
• OFSHR — Offshore
• ENHNCMNT — Enhancement
• PVLD — Prevailed
• FILG — Filling
• METMFR — Meteorological Mobile Facility Replacement
• CHCS — Chances
• ATMU — AIR TRANSPORTABLE MOBILE UNIT
• INCLG — Including
• DWSW — Deployable Weather Satellite Workstation
• HSA — Hydrologic Service Area
• RCHG — Reaching
• GRTST — Greatest
• THRFTR — Thereafter
• YLSTN — Yellowstone
• LIVV — Lifted Index Vertical Velocity
• DPND — Deepened
• ET — Echo Tops
• MLTLVL — Melting Level
• EXTDS — Extends
• TWEB — Transcribed Weather Broadcast
• AQI — Air Quality Statement
• ENHNCS — Enhances
• MLCAPE — Mean Layer CAPE

• INDCS — Indicates
• RUF — Rough
• ARSI — Atmospheric Research System, Inc.
• GDS — GeoMet Data Services, Inc.
• DTRTS — Deteriorates
• CSDR — Consider
• CTWFC — CINC Target Weather Forecast Center
• LGTR — Lighter
• SSELY — South-Southeasterly
• OCLD — Occlude
• INCRGLY — Increasingly
• SWA — Severe Weather Analysis
• CLDNS — Cloudiness
• NWWS — NOAA Weather Wire System
• NCWF — National Convective Weather Forecast
• SLGTLY — Slightly
• SHRTWVS — Shortwaves
• OCLDS — Occludes
• SMOOS — Shipboard Meteorological and Oceanographic Observing Sensor
• AMPLTD — Amplitude
• TT — Total Totals
• CRP — Critical Rainfall Probability
• SWRN — Southwestern
• ENE — east-northeast
• WKR — Weaker
• MDS — Meteorological Distribution System
• ROTS — Rotates
• QTP — Quality Through Partnership
• RHINO — RHI not operative
• STWDSR — Surface Transportation Weather Decision Support Requirements
• BNTH — Beneath
• VLNTLY — Violently
• DSTBLZN — Destabilization
• STP — Storm Total Precipitation
• NWRN — Northwestern
• RMTN — Regional Meteorological Telecommunications Network
• METMF — Meteorological Mobile Facility
• SWLG — Swelling
• LO — Lower Order
• UNSBL — Unseasonable
• APPRS — Appears
• BRKSHR — Berkshire
• VCOT — VFR Conditions on Top
• HIGH — HIGHLAND
• ET — Electronic Technician
• DRFTD — Drifted
• DWPNTS — Dewpoints
• RLTVLY — Relatively
• SOO — Scientific Operations Officer
• NMOC — National Meteorological Operations Centre

• WNWWD — West-Northwestward
• LRGST — Largest
• SNBNK — Snow bank
• VLCTY — Velocity
• OCRD — Occurred
• VRG — Veering
• WFOS — Weather Forecast Offices
• M — Mesocyclone
• DISCG — Discontinuing
• GLFSTLAWR — Gulf of St. Lawrence
• TCE — Tropical Cyclone Position Estimate
• CAWIS — Committee for Automated Weather Information Systems
• RR — Report Reaching
• VA — Volcanic Ash
• UPSTRM — Upstream
• CG — Cloud-Ground Lightning
• VCS — Velocity Cross Section
• CW — Cloud-Water Lightning
• PCD — Proceed
• UKMETO — United Kingdom Meteorological Office
• CCLDS — Clear of Clouds
• COMPARG — Comparing
• INTSFY — Intensify
• CSI — Critical Success Index
• VARN — Variation
• BRKSHRS — Berkshires
• SRNDD — Surrounded
• SRRS — Systems Record Retention System
• THKST — Thickest
• GS — Small hail and snow pellets
• NAWPC — National Aviation Weather Program Council
• RSIS — Rs Information Services, Inc.
• NSH — Nearshore Lake Forecast
• STAGN — Stagnation
• SA — Sand
• HIC — Hydrologist In Charge
• VSBYDR — Visibility Decreasing Rapidly
• MX — Mixed Type of Ice Formation
• FFA — Flood Frequency Analyses
• THNST — Thinnest
• RVR — River Recreation Statement
• DSNDS — Descends
• SHARS — Subtle Heavy Rainfall Signature
• PIBAL — pilot-balloon observation
• TYP — Type of Aircraft
• NCWD — National Convective Weather Diagnostic
• WST — Weather Support Team
• MMS — METEOROLOGICAL MEASURING SYSTEM
• NWFO — National Weather Service Forecast Office
• OVTKS — Overtakes

• MST — Meteorological Support Teams
• APLCNS — Appalachians
• CLEICEFBO — Great Lakes Ice Outlook for the Opening of Navigation
• DRG — During
• MRF — Medium-Range Forecast Model
• PPSN — Present Position
• CHC — Chance
• QPFPFD — Ncep Precipitation Forecast Discussion
• CCA — Corrected meteorological message
• SBSDNC — Subsidence
• SWS — Severe Weather Statement
• ZFP — Zone Forecast Product
• VSBYIR — Visibility Increasing Rapidly
• ESE — East-southeast
• TRPCL — Tropical
• DSTBLZD — Destabilized
• HWO — Severe Weather Potential Statement
• TFS — Tactical Forecast System
• SC — Stratocumulus (cloud formation)
• TOFS — Tactical Observing & Forecasting System
• VAAC — Volcanic Ash Advisory Centers
• CSDRBL — Considerable
• XPCS — Expects
• DWNDFTS — Downdrafts
• NPRA — National Performance Results Act
• MCDW — Monthly Climatic Data of the World
• WRMG — Warming
• STNR — Stationary
• SOO — Scientific and Operations Officer
• RDVLPG — Redeveloping
• NWSTG — National Weather Service Telecommunications Gateway
• HCVIS — High Clouds Visible
• UKMET — United Kingdom Meteorological Agency
• TNDCY — Tendency
• ESS — Water Supply Outlook Product
• FQTLY — Frequently
• CNVTN — Convection
• NOW — Short Term Forecast
• TWS — Tropical Weather Summary
• NAOS — North American Atmospheric Observing System
• NPRS — Nonpersistent
• EMWIN — Emergency Managers Weather Information Network
• TDU — Techniques Development Unit
• IWRS — Improved Weather Reconnaissance System
• HLS — Hurricane Local Statement
• SCSL — Standing lenticular stratocumulus
• OPA — Opaque, white type of ice formation
• RDVLPMT — Redevelopment
• SRM — Storm Relative Mean Radial Velocity Map
• DFCLTY — Difficulty

• SYNOP — Synoptic
• PGTSND — Puget Sound
• ASC — Ascent to
• EBND — East bound
• PE — Ice pellets
• ENHNCD — Enhanced
• WINDS — Weather Information and Display System
• NOWS — NVG Operations Weather Software
• GENLY — Generally
• DCRGLY — Decreasingly
• MDT — Moderate
• SX — Stability Index
• SPF — Probability of Tropical Cyclone Conditions
• NWSO — National Weather Service Office
• PVLS — Prevails
• SPRDS — Spreads
• OVTKG — Overtaking
• CAPPI — CONSTANT ALTITUDE PPI
• ENEWD — East-northeastward
• INCRG — Increasing
• VSB — Visible
• UNSATFY — Unsatisfactory
• UN — Unable
• QPFERD — Nmc Excessive Rainfall Discussion
• PNS — Public Information Statement
• VVSTORM — model-based convection algorithm
• WDSPRD — Widespread
• MC — Meteorological Codes
• SMA — Soil Moisture Accounting Model
• CNVTVLY — Convectively
• PLTO — Plateau
• THTND — Threatened
• PVLT — Prevalent
• MISG — Missing
• SHLW — Shallow
• SND — Sanderson
• SUNYA — State University of New York, Albany
• NNEWD — North-Northeastward
• DSIPTS — Dissipates
• ENHNCG — Enhancing
• SFP — State Forecast Product
• WSDDM — Weather Support to Deicing Decision Making
• PSH — Preliminary Tropical Storm Report
• HIGH — High Core Threshold
• SWR — State Weather Roundup
• FIP — Forecast Icing Potential
• ROB — Radar Coded Observation
• DSTBLZS — Destabilizes
• CST — Coast
• TRKG — Tracking Corporation (OTC Bulletin Board [OTCBB])

• BATROP — Barotropic
• I — See inphase
• NIDS — NEXRAD Information Distribution Service
• VOMIT — VIL Of the Moment In Time
• SSEWD — South-Southeastward
• WSOM — National Weather Service Operations Manual
• RVSG — Revising
• ER — Here
• PIBALS — Pilot Balloon Reports
• JWIS — Joint Weather Impacts System
• HUREP — Hurricane Report
• STI — Storm Tracking Information
• MNLND — Mainland
• PRSTS — Persists
• DNDFTS — Downdrafts
• SLOR — Slower
• IDS — International Data Service
• ORGPHC — Orographic
• CBS — Cumulonimbi
• N-AWIPS — National Centers-AWIPS
• M — Mach number
• WRMR — Warmer
• HP — High Precipitation
• TACWX — Tactical weather
• MULTILVL — Multi-level
• PRC — Planning and Research Corporation
• USFS — U.S. Forest Service
• EIF — Enhanced IFLOWS Format
• WSTCH — Wasatch Range
• DPR — Deeper
• PTNS — Portions
• AWT — Awaiting Test
• POP — Precipitation Probability
• LTLCG — Little Change
• SDM — Senior Duty Meteorologist
• PRJMP — Pressure Jump
• NL — No layers
• SRR — Storm Relative Mean Radial Velocity Region
• QSTNRY — Quasistationary
• NPSU — National Public Service Unit
• CS — Combined Shear
• SDM — Station Duty Manual
• SWP — Severe Weather Probability
• UPSLP — Upslope
• WBND — West Bound
• REC — Recreation Report
• CR — Composite Reflectivity
• ENERN — East-northeastern
• FLS — River Flood Statement
• ENTR — Entire

• TSHWRS — Thundershowers
• PO — Dust devils
• SB — Southbound
• MDTLY — Moderately
• SNOINCR — Snow increase
• CSC — Combined Shear Contour
• GFA — Graphical Area Forecast
• SEB — South-eastbound
• HIC — Hydrometeorological Information Center
• SPS — Special (Weather) Statement
• TCM — Tropical Cyclone Forecasts/Advisory
• DRFTS — Drifts
• HLTP — Hilltop
• MET — Meteorology
• SWWD — Southwestward
• SCC — Tropical Storm Summary
• DNWND — Down wind
• NNWRN — North-Northwestern
• THP — Three-Hour Rainfall Rate
• IC — In-Cloud Lightning
• TWO — Tropical Weather Outlook
• WSWWD — West-Southwestward
• OCR — Occurrence
• MOGR — Moderate, or Greater
• DS — Dust Storm
• WKST — Weakest
• SUPSDG — Superseding
• WTSPTS — Waterspouts
• COR — Corrected/Correction
• PFD — QPF Discussion
• TEND — Trend forecast
• NNERN — North-Northeastern
• SQLN — Squall Line
• UWNDS — Upper Winds
• WRMFNTL — Warm Frontal
• SSERN — South-Southeastern
• TCP — Public Tropical Cyclone Advisory
• SSWRN — South-Southwestern
• WPLTO — Western Plateau
• UNSTL — Unsettle
• FNTLYS — Frontolysis
• TEN — Theta-e Index
• NNWWD — North-Northwestward
• TAP — Transition Aviation Project
• DWPNT — Dewpoint
• SPKL — Sprinkle
• CYCLGN — Cyclogenesis
• MOS — Model Output Statistics applications
• FNTGNS — Frontogenesis
• AMS — Air mass

• TCU — tropical cyclone update
• LP — Low Precipitation
• TSHWR — Thundershower
• ESP — Extended Streamflow Prediction
• WSWRN — West-Southwestern
• TL — Till
• TS — Thunderstorm without precipitation
• DSA — Special Tropical Disturbance Statement
• TSQLS — Thundersqualls
• SLS — Watch Redefining Statement
• SNOTEL — Snow Telemetry
• WNWRN — West-Northwestern
• SMTHST — Smoothest
• SPA — Subtropical Cyclone Public Advisory
• SCS — Spectrum Width Cross Section
• G — Green time
• MET — Meteorological Teams

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