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A - Hail
AAA - (or AAB, AAC ... etc., in sequence)
Amended meteorological message (message type designator)
AAL - Above aerodrome level
ABM - Abeam
ABNDT - Abundant
ABNML - Abnormal
ABT - About
ABV - Above
Ac or AC - Altocumulus
AC - Anticipated Convection Outlook.
ACC - Area Control Center or area control
ACCAS - Altocumulus Castellanus
ACCID - Notification of an aircraft accident
ACCUM - Accumulate
ACFT - Aircraft
ACK - Acknowledge
ACLT - Accelerate
ACLTD - Accelerated
ACLTG - Accelerating
ACLTS - Accelerates
ACPT - Accept or accepted
ACPY - Accompany
ACRS - Across
ACSL - Altocumulus
Standing Lenticular
ACT - Active or activated or activity
ACTV - Active
ACTVTY - Activity
ACYC - Anticyclone
AD - aerodrome
ADA - advisory area
ADDN - Addition or additional
ADJ - Adjacent
ADL - Additional
ADM - Administrative Messages
ADQT - Adequate
ADQTLY - Adequately
ADR - Advisory route
ADRNDCK - Adirondack
ADVCT - Advect
ADVCTD - Advected
ADVCTG - Advecting
ADVCTN - Advection
ADVCTS - Advects
ADVIS - Headwater Advisory Program
ADVN - Advance
ADVNG - Advancing
ADVS - Advisory service
ADVY - Advisory
ADVYS - Advisories
ADZ - Advise
AFCT - Affect
AFCTD - Affected
AFCTG - Affecting
AFD - Area Forecast Discussion
AFDK - After dark
AFOS - Automation of Field Operations and Services.
AFT - After ... (time or place)
AFTN - Afternoon
AGC - Automatic Gain Control
AGL - Above ground level
AGN - Again
AGRD - Agreed
AGRMT - Agreement
AGRS - Agrees
AHD - Ahead
AHOS-S - Automatic Hydrologic Observing System - Satellite
AHOS - Automatic Hydrologic Observing System
AHOS-T - Automatic Hydrologic Observing System - Telephone
AIREP - Air Report
AAL - Above aerodrome level
AIRMET - AIRman's METeorological Information
AK - Alaska
AL - Alabama
ALERT - Automated Local Evaluation in Real Time
ALF - Aloft
ALG - Along
ALGHNY - Allegheny
ALQDS - All quadrants
ALSTG - Altimeter setting
ALT - Altitude
ALTA - Alberta
ALTHO - Although
ALTM - Altimeter
ALUTN - Aleutian
AMD - Amend or amended (used to indicate amended meteorological
message; message type designator)
AMDD - Amended
AMDG - Amending
AMDT - Amendment
AMOS - Automatic Meteorological Observing System
AMPG - Amplifying
AMPLTD - Amplitude
AMS - Air mass
AMSL - Above mean sea level
AMT - Amount
ANLYS - Analysis
ANS - Answer
A01 - Automatic observation with no precip discriminator
(rain/snow)
A02 - Automatic observation with precip
discriminator (rain/snow)
AOB - At or Below
AP - Anomalous Propagation or Airport
APCH - Approach
APCHG - Approaching
APCHS - Approaches
API - Antecedent Precipitation Index
APLCN - Appalachian
APLCNS - Appalachians
APPR - Appear
APPRG - Appearing
APPRS - Appears
APR - April
APRNT - Apparent
APRNTLY - Apparently
APRX - Approximate or approximately
APRXLY - Approximately
APSG - After passing
AQI - Air Quality Statement
AR - Arkansas
Arcus - Arc Cloud
ARFOR - Area forecast (in aeronautical meteorological code)
ARND - Around
ARPT - Airport
ARR - Arrive or arrival
ART - Automatic Radio Theodolite Master Control Unit
As or AS - Altostratus
ASAP - AHOS SHEF Automatic Processing System or as soon as
possible
ASAPTRAN - The software component of ASAP.
ASC - Ascent to or ascending to
ASH - Assistant Service Hydrologist
ASL - Above Sea Level
ASMD - As amended
ASOS - Automated Surface Observing System.
ASSOCD - Associated
ASSOCN - Association
AT... - At (followed by time at which weather change is forecast
to occur)
ATAD - Automated Telephone Answering Device.
ATDTDCS - Automated Tone Dial Telephone Data Collection System
ATLC - Atlantic
ATMU - Air Transportable Mobile Unit
ATP... - At... (time or place)
ATTM - At this time
ATTN - Attention
AUG - August
AURBO - Aurora Borealis
AUTOB - Automatic Weather Reporting System
AVBL - Available or availability
AVG - Average
AVN - AViatioN model
AWC - Aviation Weather Center
AWHPS - Area Wide Hydrologic Prediction System
AWIPS - Advanced Weather Interactive Processing System.
AWOS - Automated Weather Observation System.
AWT - Awaiting
AZ - Arizona
AZM - Azimuth
B- - Convective Inhibition
B - Blue
B+ - Convective Available Potential Energy
BA - Braking action
BACLIN - Baroclinic
BAJA - Baja California
BASE - Cloud base
BATROP - Barotropic
BC - British Columbia
BCFG - Fog patches
BCH - Beach
BCKG - Backing
BCM - Become
BCMG - Becoming
BCMS - Becomes
BD - Blowing dust
BDA - Bermuda
BDRY - Boundary
BECMG - Becoming
BFDK - Before dark
BFR - Before
BGN - Begin
BGNG - Beginning
BGNS - Begins
BHND - Behind
BINOVC - Breaks in overcast
BKN - Broken
BL... - Blowing
(followed by DU = dust, SA = sand or SN = snow)
BLD - Build
BLDG - Building
BLDS - Builds
BLDU - Blowing Dust
BLDUP - Buildup
BLKHLS - Black Hills
BLKT - Blanket
BLKTG - Blanketing
BLKTS - Blankets
BLO - Below
BLSA - Blowing Sand
BLSN - Blowing Snow
BLW - Below ...
BLZD - Blizzard
BM - Benchmark BM - Benchmark
BN - Blowing Sand
BND - Bound
BNDRY - Boundary
BNDRYS - Boundaries
BNTH - Beneath
BOOTHEEL - Bootheel
BOVC - Base of Overcast
BR - Mist
BRF - Brief
BRAF - Braking Action Fair
BRG - Branching
BRAG - Braking Action Good
BRAN - Braking Action Nil
BRAP - Braking Action Poor
BRF - Brief
BRG - Branching
BRK - Break
BRKG - Breaking
BRKHIC - Breaks in higher clouds
BRKS - Breaks
BRKSHR - Berkshire
BRKSHRS - Berkshires
BRM - Barometer
BRN - Bulk Richardson Number
BRS - Branches
BS - Blowing Snow
BT - Bathythermograph
BTL - Between layers
BTWN - Between
BWER - Bounded Weak
Echo Region
BYD - Beyond
BRAF - Braking Action Fair
BY - Blowing Spray
C - Center (runway indentification) or Degrees
Celcius (Centigrade)
CA - Cloud-Air Lightning or California
CAA - Cold Air Advection
CADAS - Centralized Automated Data Acquisition System
CAN - Canada
CAPE - Convective Available Potential Energy
CAPPI - Constant Altitude PPI.
CARIB - Caribbean
CASCDS - Cascades
CAS - Clear and Smooth
CAT - Category or Clear Air Turbulence
CAVOK - Visibility, cloud and present weather better than
prescribed values or conditions
CAVU - Ceiling and visibility unlimited
Cb or CB - Cumulonimbus Cloud
CBMAM - Cumulonimbus Mammatus
CBS - Cumulonimbi
Cc or CC - Cirrocumulus
CC - Cloud-Cloud Lightning
CCA - (or CCB, CCC ... etc, in sequence) Corrected
meteorological message (message type designator)
CCL - Convective Condensation Level
CCLDS - Clear of clouds
CCLKWS - Counter-clockwise
CCSL - Cirrocumulus Standing Leticular
CD - Climatological Data
CDA - NOAA or NESDIS Command and Data Acquisition (CDA)
Station
CDC - Climate Diagnostics Center
CDFNT - Cold front
CDFNTL - Cold frontal
CEM - Civil Emergency Message
CFP - Cold front passage
CFS - Cubic Feet per Second
CG - Cloud-Ground Lightning
CHC - Chance
CHCS - Chances
CHG - Change
CHGD - Changed
CHGG - Changing
CHGS - Changes
CHSPK - Chesepeake
Ci or CI - Cirrus
CIG - Ceiling
CIGS - Ceilings
CIN - Convective
Inhibition
CISK -
Conditional Instability of the Second Kind.
CLA - Clear type
of ice formation
CLD - Cloud
CLDNS - Cloudiness
CLDS - Clouds
CLEGLFGLS - Great Lakes Marine Synopsis
CLEGLOCLE - Great Lakes Storm Outlook
CLEGLSCLE - Great Lakes Storm Summary
CLEICEFBO - Great Lakes Freeze-Up Outlook or Great Lakes Ice
Outlook for the Opening of Navigation
CLEICEIO - Great Lakes 5-Day Ice Outlook
CLKWS - Clockwise
CLR - Clear
CLRG - Clearing
CLRS - Clears
CM - Centimeter
CMPLX - Complex
CNCL - Cancel
CNCLD - Cancelled
CNCLG - Cancelling
CNCLS - Cancels
CNDN - Canadian
CNFDC - Confidence
CNIF - Calibration Network Information Files
CNL - Cancel or cancelled
CNTR - Center
CNTRD - Centered
CNTRL - Central
CNTRLN - Centerline
CNTRS - Centers
CNTY - County
CNTYS - Counties
CNVG - Converge
CNVGG - Converging
CNVGNC - Convergence
CNVTN - Convection
CNVTV - Convective
CNVTVLY - Convectively
CO - Colorado
COE - An acronym for Corps of Engineers
COM - Communications
COMPAR - Compare
COMPARD - Compared
COMPARG - Comparing
COMPARS - Compares
COND - Conditions
CONS - Continuous
CONSHELF - Continental Shelf
CONT - Continue(s) or continued
CONTD - Continued
CONTDVD - Continental Divide
CONTG - Continuing
CONTLY - Continually
CONTRAILS - Condensation Trails
CONTS - Continues
CONUS - Continental United States.
COOR - Co-ordinate or co-ordination
COORD - Coordinate
COR - Correction
COT - At the coast
COV - Cover or covered or covering
CPBL - Capable
CPC - Climate Prediction Center
CPHC - Central Pacific Hurricane Center
CR - Composite Reflectivity
CRC - Composite Reflectivity Contour
CRC - Circle
CRCLC - Circulate
CRCLN - Circulation
CRNR - Corner
CRNRS - Corners
CRP - Critical
Rainfall Probability
CRS - Course
Cs or CS - Cirrostratus
CS - Combined Shear
CSC - Combined Shear Contour
CSDR - Consider
CSDRBL - Considerable
CSI - Conditional Symmetric Instability
CST - Coast
CSTL - Coastal
CT - Connecticut or Cross Totals
CTGY - Category
CTSKLS - Catskills
Cu or CU - Cumulus.
CUF - Cumuliform
CUFRA - Cumulus
Fractus
CVR - Cover
CVRD - Covered
CVRG - Covering
CVRS - Covers
CW - Cloud-Water
Lightning or Continuous Wave
CWA - County Warning Area
CWF - Coastal Marine Forecasts
CYC - Cyclonic
CYCLGN - Cyclogenesis
D-MAWDS - Digital Marine Weather Dissemination
System
DABRK - Daybreak
DALGT - Day light
DAMBRK - The Dam Break Forecasting Model.
DAPM - The Data Acquisition Program Manager.
DATACOL - The Software System that supports RFC gateway
functions.
DATANET - Hydrologic Data Network Analysis Software.
dB - decibels
DBL - Double
dBm - A logarithmic expression for power. See decibel.
dBZ - A logarithmic expression for reflectivity factor. See
decibel.
DC - District of Columbia
DCP - Data Collection Platform
DCR - Decrease
DCRD - Decreased
DCRG - Decreasing
DCRGLY - Decreasingly
DCRS - Decreases
DCS - Data Collection System
DDS - Data Distribution System.
DE - Delaware
DEC - December
DEG - Degree
DEGS - Degrees
DELMARVA - Delaware-Maryland-Virginia
DEP - Depart or departure
DES - Descend or descending to
DEV - Deviation or deviating
DFCLT - Difficult
DFCLTY - Difficulty
DFNT - Definite
DFNTLY - Definitely
DFRS - Differs
DFUS - Diffuse
DGNL - Diagonal
DGNLLY - Diagonally
DIF - Diffuse
DIGG - Digging
DIR - Direction
DISC - Discontinue
DISCD - Discontinued
DISCG - Discontinuing
DISRE - Disregard
DISRED - Disregarded
DISREG - Disregarding
DIST - Distance
DIV - Divert or diverting
DKTS - Dakotas
DLA - Delay or delayed
DLAD - Delayed
DLT - Delete
DLTD - Deleted
DLTG - Deleting
DLY - Daily
DMG - Damage
DMGD - Damaged
DMGG - Damaging
DMNT - Dominant
DMSH - Diminish
DMSHD - Diminished
DMSHG - Diminishing
DMSHS - Diminishes
DNDFTS - Downdrafts
DNR - Department of Natural Resources.
DNS - Dense
DNSLP - Downslope
DNSTRM - Downstream
DNWND - Down wind
DOH - Development and Operations Hydrologist.
DOM - Domestic
DP - Dew point temperature or Deep
DPND - Deepened
DPNG - Deepening
DPNS - Deepens
DPR - Deeper
DPTH - Depth
DR... - Low drifting (followed by DU = dust, SA = sand or SN =
snow)
DRFT - Drift
DRFTD - Drifted
DRFTG - Drifting
DRFTS - Drifts
DRG - During
DRZL - Drizzle
DS - Dust Storm
DSA - Special Tropical Disturbance Statement
DSCNT - Descent
DSF - Day-Second Feet
DSIPT - Dissipate
DSIPTD - Dissipated
DSIPTG - Dissipating
DSIPTN - Dissipation
DSIPTS - Dissipates
DSND - Descend
DSNDG - Descending
DSNDS - Descends
DSNT - Distant
DSTBLZ - Destabilize
DSTBLZD - Destabilized
DSTBLZG - Destablizing
DSTBLZN - Destablization
DSTBLZS - Destablizes
DSTC - Distance
DTG - Date-time group
DTRT - Deteriorate or
deterioring
DTRTD - Deteriorated
DTRTG - Deteriorating
DTRTS - Deteriorates
DU - Dust
DUC - Dense upper cloud
DUR - Duration
DURG - During
DURN - Duration
DVLP - Develop
DVLPD - Developed
DVLPG - Developing
DVLPMT - Development
DVLPS - Develops
DVRG - Diverge
DVRGG - Diverging
DVRGNC - Divergence
DVRGS - Diverges
DVV - Downward vertical velocity
DWNDFTS - Downdrafts
DWOPER - Dynamic Wave Routing Model
DWPNT - Dewpoint
DWPNTS - Dewpoints
DX - Duplex
DZ - Drizzle
E - East or eastern longitude
EB - Eastbound
EBND - East bound
ECMWF - European Centre for Medium-Range Weather Forecasting
model
EFCT - Effect
EHI - Energy Helicity Index
EIF - Enhanced IFLOWS Format.
EL - Equilibrium Level
ELEV - Elevation
ELNGT - Elongate
ELNGTD - Elongated
ELSW - Elsewhere
EMBD - Embedded in a layer (to indicate cumulonimbus embedded in
layers of other clouds)
EMBDD - Embedded
EMC - Environmental Modeling Center
EMERG - Emergency
EMWIN - Emergency Managers Weather Information Network
ENCTR - Encounter
ENDG - Ending
ENE - East-northeast
ENELY - East-northeasterly
ENERN - East-northeastern
ENEWD - East-northeastward
ENHNC - Enhance
ENHNCD - Enhanced
ENHNCG - Enhancing
ENHNCMNT - Enhancement
ENHNCS - Enhances
ENRT - En route
ENSO - El Nino Southern Oscillation
ENTR - Entire
EPD - Extended Forecast Discussion
ER - Here...or herewith
ERD - Excessive Rainfall Discussion
ERL - Environmental Research Laboratories
ERN - Eastern
ERY - Early
ERYR - Earlier
ESA - Electronic Systems Analyst
ESE - East-southeast
ESELY - East-southeasterly
ESERN - East-southeastern
ESEWD - East-southeastward
ESF - Flood Potential Outlook
ESNTL - Essential
ESP - Extended Streamflow Prediction.
ESPINIT - ESP Initialization Program
ESS - Water Supply Outlook Product
EST - Eastern Standard Time or Estimate or estimated or
estimate (message type designator)
ESTAB - Establish
ESTS - Estimates
ET - Echo Tops or Electronic Technician
ETA - Eta model or Estimated time of arrival or estimating
arrival
ETC - Et cetera or Echo Tops Contour
ETD - Estimated time of departure or estimating departure
ETIM - Elapsed time
EV - Every
EVAD - See VAD.
EVAD - Extended Velocity - Azimuth
EVE - Evening
EWD - Eastward
EXC - Except
EXCLV - Exclusive
EXCLVLY - Exclusively
EXCP - Except
EXER - Excercises or excercising or to exercise
EXP - Expect or expected or expecting
EXPC - Expect
EXPCD - Expected
EXPCG - Expecting
EXTD - Extend or extending
EXTDD - Extended
EXTDG - Extending
EXTDS - Extends
EXTN - Extension
EXTRAP - Extrapolate
EXTRAPD - Extrapolated
EXTRM - Extreme
EXTRMLY - Extremely
EXTSV - Extensive
F scale - See Fujita Scale.
F - Farenheit
FA - Aviation Area Forecast
FAA - Federal Aviation Administration
FAH - Farenheit
FAM - Familiar
FAX - Facsimile transmission
+FC - Funnel cloud
(tornado or waterspout)
FCEXEC - A component of the NWSRFS FCST Program.
FCST - Forecast
FCSTD - Forecasted
FCSTG - Forecasting
FCSTR - Forecaster
FCSTS - Forecasts
FDR - Fire Danger Rating
FEB - February
FEMA - Federal Emergency Management Agency
FEW - Few
FFA - Flood or Flash
Flood Watch
FFG - Flash Flood Guidance
FFS - Flash Flood Statement
FFW - Flash Flood Warning
FG - Fog
FIC - Flight information center
FIG - Figure
FILG - Filling
FIR - Flight information region
FIRAV - First available
FIS - Flight information service
FL - Flight level or Florida
FLD - Field
FLG - Flashing or Falling
FLN - National Flood Summary
FLRY - Flurry
FLRYS - Flurries
FLS - River Flood Statement
FLT - Flight
FLUC - Fluctuating or fluctuation or fluctuated
FLW - River Flood Warning, follow(s) or following
FLWG - Following
FLY - Fly or flying
FM - From
FMT - Format
FNCTN - Function
FNT - Front
FNTGNS - Frontogenesis
FNTL - Frontal
FNTLYS - Frontolysis
FNTS - Fronts
FORNN - Forenoon
FOS - Family of Services
FOS - Family of Services
FPM - Feet per minute
FPO - Flood Potential Outlook
FQT - Frequent
FQTLY - Frequently
FREQ - Frequency
FRI - Friday
FRM - Form
FRMG - Forming
FRMN - Formation
FRONT - Front (relating to weather)
FROPA - Frontal passage
FROSFC - Frontal surface
FRQ - Frequent
FRST - Frost
FRWF - Forecast wind factor
FRZ - Freeze
FRZG - Freezing
FRZN - Frozen
FST - First
FT - Feet (dimensional unit) or Terminal forecast
FTHR - Further
FTP - File Transfer Protocol
FU - Smoke
FVRBL - Favorable
FWD - Forward
FYI - For your information
FZ - Freezing
FZDZ - Freezing drizzle
FZFG - Freezing fog
FZRA - Freezing rain
G - Gust or Green
GA - Georgia
GEN - General
GENLY - Generally
GEO - Geographic or true
GEOREF - Geographical reference
GF - Ground fog
GICG - Glaze icing
GLFALSK - Gulf of Alaska
GLFCAL - Gulf of California
GLFMEX - Gulf of Mexico
GLFSTLAWR - Gulf of St. Lawrence
GMDSS - Global Maritime Distress and Safety System
GND - Ground
GNDFG - Ground fog
GOES - Geostationary Orbiting Environmental Satellite
GOM - Global Ocean Model
GPS - Global Positioning System
GR - Hail
GRAD - Gradient
GRDL - Gradual
GRDLY - Gradually
GRID - Processed meteorological data in the form of grid point
values
GRT - Great
GRTLKS - Great Lakes
GRTLY - Greatly
GRTR - Greater
GRTST - Greatest
GS - Small hail and/or snow pellets
GSTS - Gusts
GSTY - Gusty
GV - Ground visibility
HADS - Hydrometeorological Automated Data
System
HAZ - Hazard
HCVIS - High clouds
visible
HDFRZ - Hard
freeze
HDG - Heading
HDRAIN - An Hourly Digital Rainfall Product of the WSR-88D.
HDSVLY - Hudson Valley
HDWND - Head wind
HEL - Helicopter
HGT - Height or height above
HI - High, Hail Index, or Heat Index
HIC - Hydrologist in Charge or Hydrometeorological Information
Center of the Office of Hydrology (OH)
HIER - Higher
HIFOR - High level forecast
HIGH - High
HJ - Sunrise to sunset
HLF - Half
HLS - Hurricane Local Statement
HLSTO - Hailstones
HLTP - Hilltop
HLYR - Haze layer aloft
HMD - Hemispheric Map Discussion
HMT - Hydrometeorological Technicians
HN - Sunset to sunrise
HND - Hundred
HOD - The Hydrologist on Duty or Hydrologic Operations
Division of the Office of Hydrology (OH).
HOL - Holiday
HP - High Precipitation
HPA - Hectapascal
HPC - Hydrometeorological Prediction Center
HPD - Hourly Precipitation Data
HR - Hour
HRL - The Hydrological Research Laboratory at the Office of
Hydrology (OH).
HRS - Hours
HRZN - Horizon
HSA - Hydrologic Service Area
HSB - The Hydrologic Systems Branch in the Office of Hydrology
(OH).
HSD - Heavy Snow Discussion
HSF - High Seas Forecasts
HTC - The Hydrometeorological Training Council
HTG - Heating
HURCN - Hurricane
HUREP - Hurricane report
HV - Have
HVY - Heavy
HVYR - Heavier
HVYST - Heaviest
HWO - Severe Weather Potential Statement
HWVR - However
HWY - Highway
HYR - Higher
Hz - Hertz (Hz)
HZ - Haze
i - i = square root of (-1)
'I' - See inphase
IA - Iowa
IAO - In and out of clouds
IC - Ice Crystals, Diamond dust (very small ice crystals in
suspension), or In-Cloud Lightning
ICAO - International Civil Aviation Organization
ICE - Icing
ICG - Icing
ICGIC - Icing in clouds
ICGIP - Icing in precipitation
ID - Identifier, identify, or Idaho
IFFDP - International Flight Folder Documentation Program
IFLOWS - The Integrated Flood Observing and Warning System.
IFR - Instrument Flight Rules
IL - Illinois
IMC - Instrument meteorological conditions
IMDT - Immediate
IMDTLY - Immediately
IMPL - Impulse
IMPLS - Impulses
IMPR - Improve or improving
IMPT - Important
IMT - Immediate or immediately
INBD - Inbound
INC - In cloud
INCL - Include
INCLD - Included
INCLG - Including
INCLS - Includes
INCR - Increase
INCRD - Increased
INCRG - Increasing
INCRGLY - Increasingly
INCRS - Increases
INDC - Indicate
INDCD - Indicated
INDCG - Indicating
INDCS - Indicates
INDEF - Indefinite
INFO - Information
INLD - Inland
INOP - Inoperative
INP - If not possible
INPR - In progress
INS - Inertial Navigation System
INSTBY - Instability
INSTF - Intensify or intensifying
INSTL - Install or installed or installation
INTCNTL - Intercontinental
INTL - International
INTMD - Intermediate
INTMT - Intermittent
INTMTLY - Intermittently
INTR - Interior
INTRMTRGN - Intermountain region
INTRP - Interupt or interruption or interrupted
INTS - Intense
INTSFCN - Intensification
INTSFY - Intensify
INTSFYD - Intensified
INTSFYG - Intensifying
INTSFYS - Intensifies
INTST - Intensity
INTSTY - Intensity
INTVL - Interval
INU - Inertial Navigation Unit
INVOF - In vicinity of
INVRN - Inversion
IOVC - In overcast
IP - Ice pellets
IPV - Improve
IPVG - Improving
IR - Infrared or Ice on runway
ISA - International standard atmosphere
ISOL - Isolated or Isolate
ISOLD - Isolated
ITCZ - Intertropical Convergence Zone
J/KG - Joules per Kilogram.
JAN - January
JCTN - Junction
JTST - Jet stream
JTSTR - Jet
stream
JUL - July
JUN - June
KBDI - Keetch-Byram Drought Index
KFRST - Killing frost
KG - Kilograms
KLYR - Smoke layer aloft
KM - Kilometers
KMH - Kilometers per hour
KOCTY - Smoke over city
KPA - Kilopascal
KS - Kansas
KT - Knots
KW - Kilowatts
KY - Kentucky
LA - Louisiana
LABRDR - Labrador
LAM - Logical acknowledgment (message type designator)
LAN - Inland
LAT - Latitude
LCL - Local
LCLY - Locally
LCTD - Located
LCTMP - Little change in
temperature
LCTN - Location
LDG - Landing
LEN - Length
LEVEL - Level
LEWP - Line Echo Wave
Pattern
LFM - Limited Fine Mesh Model
LFTG - Lifting
LGRNG - Long range
LGT - Light or lighting
LGTD - Lighted
LGTR - Lighter
LGWV - Long wave
LI - Lifted Index
LIS - Lifted indices
LK - Lake
LKLY - Likely
LKS - Lakes
LLJ - Low Level Jet
LLWAS - Low level wind shear alert system
LLWS - Low Level Wind Shear
LMT - Local mean time
LMTD - Limited
LMTG - Limiting
LMTS - Limits
LN - Line or Lines
LO - Low
LOC - Local or locally or location or located
LONG - Longitude
LONGL - Longitudnal
LP - Low Precipitation
LRG - Large
LRGLY - Largely
LRGR - Larger
LRGST - Largest
LSQ - Line squall
LSR - Local Storm Report.
LST - Local standard time
LTD - Limited
LTG - Lightning
LTGCC - Lightning cloud-to-cloud
LTGCCCG - Lightning cloud-to-cloud cloud-to-ground
LTGCG - Lightning cloud-to-ground
LTGCW - Lightning cloud-to-water
LTGIC - Lightning in cloud
LTL - Little
LTLCG - Little change
LTR - Later
LTST - Latest
LV - Light and variable (relating to wind) or Leaving
LVL - Level
LVLS - Levels
LWR - Lower
LWRD - Lowered
LWRG - Lowering
LYR - Layer or layered
LYRD - Layered
LYRS - Layers
M - Mesocyclone, Mach number (followed by
figures), or Meters (preceded by figures)
m2/s2 - meters squared per second squared, equivalent to
J/kg. See CAPE and CIN.
MA - Massachusetts
MAN - Manitoba
MAP - Mean Areal Precipitation or Aeronautical maps and charts
MAR - March
MAREP - Marine Reporting Program
MAX - Maximum
MAY - May
MB or mb - Millibars.
MCC - Mesoscale Convective Complex
MCD - Mesoscale Discussion
MCDW - Monthly Climatic Data of the World
McIDAS - Man-computer Interactive Data Access System.
MCS - Mesoscale Convective System
MCW - Modulated continuous wave
MD - Maryland
MDFY - Modify
MDFYD - Modified
MDFYG - Modifying
MDL - Model
MDLS - Models
MDS - Minimum Discernible Signal
MDT - Moderate
MDTLY - Moderately
ME - Maine
MED - Medium
MEGG - Merging
MESO - Mesocyclone or Mesoscale
MET - Meteorological or meteorology
METAR - Aviation rountine weather report (in aeronautical
meteorological code)
METRO - Metropolitan
MEX - Mexico
MHKVLY - Mohawk Valley
MI - Michigan
MIC - Meteorologist-In-Charge
Micro-ART - Microcomputer Automatic Radiotheodolite Master
Control Unit
MID - Middle
MIDN - Midnight
MIFG - Shallow fog
MIL - Military
MIN - Minutes or Minimum
MISG - Missing
MLCAPE - Mean Layer CAPE
MLLI - Mean Layer Lifted Index
MLLW - Mean Lower Low Water
MLOS - Microwave Line-Of-Site
MLTLVL - Melting level
MLW - Mean Low Water
MN - Minnesota
MNLND - Mainland
MNLY - Mainly
MNM - Minimum
MNT - Monitor or monitoring or monitored
MO - Missouri
MOD - Meteorological Operations Division or Moderate
MOGR - Moderate or
greater
MON - Above mountains or Monday
MOS - Model Output Statistics
MOV - Move or moving or movement
MOVD - Moved
MOVG - Moving
MOVMT - Movement
MOVS - Moves
MPC - Marine Prediction Center
MPH - Miles per hour
MPL - Max Parcel Level
MRF - Medium-Range Forecast model
MRGL - Marginal
MRGLLY - Marginally
MRNG - Morning
MRTM - Maritime
MS - Mississippi or Minus
MSG - Message
MSL - Mean Sea Level
MST - Most
MSTLY - Mostly
MSTR - Moisture
MT - Montana or Mountain
MTN - Mountain
MTNS - Mountains
MTU - Metric units
MTW - Mountain waves
MUCAPE - Most Unstable CAPE
MULI - Most Unstable Lifted Index
MULT - Multiple
MULTILVL - Multi-level
MWO - Meteorological watch office
MX - Mixed type of ice formation (white and clear)
MXD - Mixed
N - North or Refractivity
NAB - Not above
NAT - North Atlantic
NATL - National
NAV - Navigation
Navtex - Navigational Telex
NB - New Brunswick or Northbound
NBFR - Not before
NBND - Northbound
NBRHD - Neighborhood
NC - North Carolina or No change
NCCF - NOAA Central Computer Facility.
NCDC - National Climatic Data Center
NCEP - National Centers for Environmental Prediction
NCWX - No change in weather
ND - North Dakota
NE - Northeast or Nebraska
NEB - North-eastbound or Nebraska
NEC - Necessary
NEG - No, negative, permission not granted, or that is not
correct
NEGLY - Negatively
NELY - Northeasterly
NERN - Northeastern
NESDIS - National Environmental Satellite, Data, and
Information Service
NEW ENG - New England
NEWD - Northeastward
NEXRAD - NEXt generation of weather RADar
NFDRS - National Fire Danger Rating System
NFLD - Newfoundland
NGM - Nested Grid Model
NGT - Night
NH - New Hampshire
NHC - National Hurricane Center
NIDS - NEXRAD Information Dissemination Service
NIL - None or I have nothing to send to you
NJ - New Jersey
NL - No layers
NLT - Not later than
NLY - Northerly
NM - Nautical mile or New Mexico
NMBR - Number
NMBRS - Numbers
NMC - National Meteorological Center. This was the former
name of NCEP
NML - Normal
NMRS - Numerous
NNE - North north east
NNELY - North-northeasterly
NNERN - North-northeastern
NNEWD - North-northeastward
NNNN - End of message
NNW - North-northwest
NNWLY - North-northwesterly
NNWRN - North-northwestern
NNWWD - North-northwestward
NOAA - National Oceanic and Atmospheric Administration
NOHRSC - The National Operational Hydrologic Remote Sensing
Center
NOPAC - Northern Pacific
NOSIG - No significant change (used in trend-type landing
forecasts)
NOTAM - A notice containing information concerning the
establishment, condition or change in any aeronautical facility
NOV - November
NOW - Short Term Forecast
NOWcast - Short Term Forecast
NPRS - Nonpersistent
NR - Number or Near
NRCS - Natural Resources Conservation Service
NRLY - Nearly
NRN - Northern
NRW - Narrow
Ns - Nimbostratus
NS - Nimbostratus or Nova Scotia
NSC - Nil significant cloud
NSH - Nearshore Lake Forecast
NSSFC - National Severe Storms Forecast Center now known as
SPC
NSSL - National Severe Storms Laboratory
NSW - Nil significant weather
NTFY - Notify
NTFYD - Notified
NV - Nevada
NVA - Negative Vorticity Advection
NW - Northwest
NWB - North-westbound
NWD - Northward
NWFO - National Weather Service Forecast
Office
NWLY - Northwesterly
NWP - Numerical Weather Prediction.
NWR - NOAA Weather Radio
NWRN - Northwestern
NWS - National Weather Service.
NWSH - National Weather Service Headquarters.
NWSO - National Weather Service Office
NWSRFS V5.0 - National Weather Service River Forecast Model
Version 5
NWWS - NOAA Weather Wire System
NXT - Next
NY - New York
OAC - Oceanic area control center
OAT - Outside Air Temperature OBND - Outbound
OBS - Observe or observe or observation
OBSC - Obscure or obscured or obscuring
OBSCD - Obscured
OBSCG - Obscuring
OBST - Obstacle
OCFNT - Occluded front
OCLD - Occlude
OCLDD - Occluded
OCLDG - Occluding
OCLDS - Occludes
OCLN - Occlusion
OCNL - Occasional or occasionally
OCNLY - Occasionally
OCR - Occur
OCRD - Occurred
OCRG - Occurring
OCRS - Occurs
OCT - October
OFC - Office
OFF - Offshore Forecast
OFP - Occluded frontal passage
OFSHR - Offshore
OH - Ohio or Office of Hydrology, located in Silver Springs,
MD.
OHD - Overhead
OHP - One-Hour Rainfall Rate
OK - Oklahoma
OML - Operations Manual Letter
OMTNS - Over mountains
ONSHR - Onshore
OPA - Opaque, white type of ice formation
OPMET - Operational meteorological (information)
OPN - Open or opening or opened
OPR - Operator or operate or operative or operating or
operational
OPS - Operations
OR - Oregon
ORGPHC - Orographic
ORIG - Original
OSV - Ocean station vessel
OTLK - Outlook
OTP - On top
OTR - Other
OTRW - Otherwise
OUBD - Outbound
OUTFLO - Outflow
OVC - Overcast
OVNGT - Overnight
OVR - Over
OVRN - Overrun
OVRNG - Overrunning
OVTK - Overtake
OVTKG - Overtaking
OVTKS - Overtakes
PA - Pennsylvania
PAC - Pacific
PARL - Parallel
PBL - Planetary boundary layer
PC-GRIDDS - PC-Gridded Interactive Display and Diagnostic
System
PCD - Proceed or proceeding
PCPN - Precipitation
PD - Period
PDMT - Predominant
PDS - Particularly Dangerous Situation or Periods
PE - Ice pellets
PEN - Peninsula
PERM - Permanent
PFD - QPF Discussion
PGTSND - Puget Sound
PHYS - Physical
Pibal - pilot-balloon observation
PIBAL - Pilot balloon observation
PIBALS - Pilot balloon reports
PIREP - Pilot Weather Report
Pixel - A contraction of "picture element"
PL - Ice Pellets or
Sleet
PLNS - Plains
PLS - Please
PLTO - Plateau
PLVL - Present level
PM - Post meridian
PMD - Prognostic Discussion
PNHDL - Panhandle
PNS - Public Information Statement
PO - Dust devils
PoP - Precipitation Probability
POS - Positive
POSLY - Positively
POSS - Possible
PPINE - Plan Position Indicates No Echoes
PPSN - Present position
PQPF - Probabilistic Quantitative Precipitation Forecast
PRBL - Probable
PRBLTY - Probability
PRBLY - Probably
PRECD - Precede
PRECDD - Preceded
PRECDG - Preceding
PRECDS - Precedes
PRES - Pressure
PRESFR - Pressure
falling rapidly
PRESRR - Pressure
rising rapidly
PRF - Pulse Repetition Frequency
PRI - Primary
PRIM - Primary
PRIN - Principal
PRIND - Present indications are
PRJMP - Pressure jump
PROB - Probability
PROC - Procedure
PROD - Produce
PRODG - Producing
PROG - Forecast
PROGD -
Forecasted
PROGS - Forecasts
PRSNT - Present
PRSNTLY - Presently
PRST - Persist
PRSTNC - Persistence
PRSTNT - Persistent
PRSTS - Persists
PRT - Pulse Repetition Time
PRVD - Provide
PRVDD - Provided
PRVDG - Providing
PRVDS - Provides
PS - Plus
PSBL - Possible
PSBLTY - Possiblity
PSBLY - Possibly
PSG - Passing or Passage
PSH - Preliminary Tropical Storm Report
PSN - Position
PSND - Positioned
PTCHY - Patchy
PTLY - Partly
PTNL - Potential
PTNLY - Potentially
PTNS - Portions
PUGET - Puget Sound
PUP - Principle User Processor
PVA - Positive Vorticity Advection
PVL - Prevail
PVLD - Prevailed
PVLG - Prevailing
PVLS - Prevails
PVLT - Prevalent
PW - Precipitable Water
PWO - Public Severe Weather Outlook
PWR - Power
PY - Spray
Q' - Quadrature
QBI - Compulsory IFR flight
QFE - Atmospheric pressure at aerodrome elevation (or at runway threshold)
QG - An abbreviation for quasigeostrophic.
QN - Question
QPF - Quantitative Precipitation Forecast
QPFERD - NMC excessive rainfall discussion
QPFHSD - NCEP Heavy Snow Discussion
QPFPFD - NCEP Precipitation Forecast Discussion
QPFSPD - NMC special precipitation discussion
QSTNRY - Quasistationary
QUAD - Quadrant
QUE - Quebec
R - Base Reflectivty, red, right, or restricted
area
RA - Rain
RADAT - Radiosonde observation data
RAFC - Regional Area Forecast Center
RAFS - Regional Analysis and Forecasting System.
RAG - Ragged
RAMSDIS - RAMM Advanced Meteorological Satellite Demonstration
and Interpretation System
RAOB - Radiosonde Observation
RAOBS - Radiosonde observations
RCH - Reach or reaching
RCHD - Reached
RCHG - Reaching
RCHS - Reaches
RCKY - Rocky
RCKYS - Rockies
RCM - Radar Coded Message
RCMD - Recommend
RCMDD - Recommended
RCMDG - Recommending
RCMDS - Recommends
RCRD - Record
RCRDS - Records
RCS - Reflectivity Cross Section
RCV - Receive
RCVD - Received
RCVG - Receiving
RCVS - Receives
RDA - Radar Data Acquisition
RDC - Reduce
RDGG - Ridging
RDR - Radar
RDVLP - Redevelop
RDVLPG - Redeveloping
RDVLPMT - Redevelopment
RE - Regard or Recent
REC - Recreation Report
RECON - Reconnaissance
REF - Reference
REP - Report or reporting or reporting point
REPL - Replace
REPLD - Replaced
REPLG - Replacing
REPLS - Replaces
REQ - Request or requested
REQS - Requests
REQSTD - Requested
RES - Reserve
RESP - Response
RESTR - Restrict
RFC - River Forecast Center
RFD - Rear Flank Downdraft
RGD - Ragged
RGL - Regional Model
RGLR - Regular
RGN - Region
RGNS - Regions
RGT - Right
RH - Relative Humidity
RHI - Range-Height Indicator
RHINO - RHI not operative
RI - Rhode Island
RIOGD - Rio Grande
RL - Report leaving
RLBL - Reliable
RLTV - Relative
RLTVLY - Relatively
RMK - Remark
RMN - Remain
RMND - Remained
RMNDR - Remainder
RMNG - Remaining
RMNS - Remains
RNFL - Rainfall
ROBEX - Regional OPMET bulletin exchange (scheme)
ROC - Rate of climb
ROD - Rate of descent
ROFOR - Route forecast (in aeronautical meteorological code)
ROML - Regional Operations Manual Letter.
ROSA - Remote Observing System Automation
ROT - Rotate
ROTD - Rotated
ROTG - Rotating
ROTS - Rotates
RPD - Rapid
RPDLY - Rapidly
RPG - Radar Product Generator
RPLC - Replace or replaced
RPLCD - Replaced
RPLCG - Replacing
RPLCS - Replaces
RPRT - Report
RPRTD - Reported
RPRTG - Reporting
RPRTS - Reports
RPT - Repeat
RPTG - Repeating
RPTS - Repeats
RQR - Require
RQRD - Required
RQRG - Requiring
RQRS - Requires
RR - Report reaching
RRA - (or RRB, RRC ... etc., in sequence) Delayed meteorological
message (message type designator)
RS - Receiver station
RSG - Rising
RSN - Reason
RSNG - Reasoning
RSNS - Reasons
RSTR - Restrict
RSTRD - Restricted
RSTRG - Restricting
RSTRS - Restricts
RTD - Delayed (used to indicate delayed meteorological message;
message type designator)
RTE - Route
RTN - Return or returned or returning
RTRN - Return
RTRND - Returned
RTRNG - Returning
RTRNS - Returns
RUC - Rapid Update Cycle
RUF - Rough
RUFLY - Roughly
RVA - River Summary
RVF - River Forecast
RVI - River Ice Statement
RVR - River Recreation Statement or Runway Visual Range
RVS - River Statement or Revise
RVSD - Revised
RVSG - Revising
RVSS - Revises
RW - Rain Shower
RWY - Runway
S - South or southern latitude
SA - Surface observation or Sand
SACSMA - Sacramento Soil Moisture Accounting Model
SAO - Surface
observation
SAOS - Surface observations
SAP - As soon as possible
SARPS - Standards and Recommended Practices (ICAO)
SASK - Saskatchewan
SAT - Saturday
SATFY - Satisfactory
SAW - Preliminary Notification of Forthcoming Watch
SAWRS - Supplementary Aviation Weather Reporting Station
SB - Southbound
SBCAPE - CAPE calculated using a Surface based parcel
SBLI - Lifted Index (LI) calculated using surfaced based
parcel
SBND - South bound
SBSD - Subside
SBSDD - Subsided
SBSDNC - Subsidence
SBSDS - Subsides
Sc - Stratocumulus
SC - South Carolina or Stratocumulus
SCA - Small Craft Advisory
SCC - Tropical Storm Summary
SCND - Second
SCNDRY - Secondary
SCS - Spectrum Width Cross Section or Soil Conservation
Service
SCSL - Standing
lenticular stratocumulus
SCT - Scattered
SCTD - Scattered
SCTR - Sector
SD - Storm Data or South Dakota
SDF - Second-Day Feet
SDM - Senior Duty Meteorologist or Station Duty Manual
SE - Southeast
SEB - South-eastbound
SEC - Space Environmental Center, second, or seconds
SEL - Severe
Thunderstorm Watch, Tornado Watch
SEL - Watch Cancellation
SELS - SEvere Local Storms Unit
SELY - Southeasterly
SEP - September
SEPN - Separation
SEQ - Sequence
SERN - Southeastern
SEV - Severe (used e.g. to qualify icing and turbulence reports)
SEWD -Southeastward
SFC - Surface
SFD - State Forecast Discussion
SFERICS - Atmospherics
SFP - State Forecast Product
SG - Snow Grains
SGFNT - Significant
SGFNTLY - Significantly
SH... - Shower (followed by RA = rain, SN = snow, PE = ice
pellets)
SHARP - Skew-T Hodograph Analysis and Research Program
SHARS - Subtle Heavy
Rainfall Signature
SHEF - Standard Hydrologic Exchange Format
SHEFPARS - A software decoder for SHEF Data.
SHFT - Shift
SHFTD - Shifted
SHFTG - Shifting
SHFTS - Shifts
SHLD - Shield
SHLW - Shallow
SHRT - Short
SHRTLY - Shortly
SHRTWV - Shortwave
SHRTWVS - Shortwaves
SHSN - Snow Shower
SHUD - Should
SHWR - Shower
SHWRS - Showers
SIERNEV - Sierra Nevada
SIG - Signature
SIGMET - SIGnificant METeorlogical Information
SIGWX - Significant weather
SIMUL - Simultaneous or simultaneously
SKC - Sky clear
SKED - Schedule or scheduled
SLD - Solid
SLGT - Slight
SLGTLY - Slightly
SLO - Slow
SLOLY - Slowly
SLOR - Slower
SLP - Slope
SLPG - Sloping
SLS - Watch Redefining Statement
SLT - Sleet
SLW - Slow
SLY - Southerly
SM - Statute mile
SMA - Soil Moisture Accounting Model or Subtropical
Forecast/Advisory
SMK - Smoke
SML - Small
SMLR - Smaller
SMPDBK - The Simplified Dam Break (DAMBRK) Model
SMRY - Summary
SMS - Synchronus meteorological satellite
SMTH - Smooth
SMTHR - Smoother
SMTHST - Smoothest
SMTM - Sometime
SMW - Special Marine Warning
SMWHT - Somewhat
SN - Snow
SNBNK - Snow bank
SND - Sand
SNFLK - Snow flake
SNGL - Single
SNOINCR - Snow increase
SNOINCRG - Snow increasing
SNOTEL - SNOw TELemetry
SNR - Signal-to-Noise Ratio
SNST - Sunset
SNW - Snow
SNWFL - Snowfall
SO - Southern Oscillation
SOO - Scientific & Operations Officer
SOLAS - Safety of Life at Sea Convention
SOP - Standard operating procedure
SP - Snow pellets
SPA - Subtropical Cyclone Public Advisory
SPC - Storm Prediction Center
SPCLY - Especially
SPD - Speed
SPDS - Speeds
SPECI - Aviation selected special weather report (in
aeronautical meteorological code)
SPECIAL - Special meteorological report (in abbreviated plain
language)
SPENES - Satellite precipitation estimate statement
SPF - Probability of Tropical Cyclone Conditions
SPKL - Sprinkle
SPKLS - Sprinkles
SPLNS - Southern Plains
SPOT - Spot wind
SPRD - Spread
SPRDG - Spreading
SPRDS - Spreads
SPRL - Spiral
SPS - Severe Weather Potential Statement or Special Weather
Statement
SQ - Squall
SQAL - Squall
SQLN - Squall line
SQSN - Snow Squalls
SR - Sunrise
SRH - Storm-relative Helicity.
SRM - Storm Relative Mean Radial Velocity Map
SRN - Southern
SRND - Surround
SRNDD - Surrounded
SRNDG - Surrounding
SRNDS - Surrounds
SRR - Storm Relative Mean Radial Velocity Region
SRY - Secondary
SS - Sandstorm or sunset
SSE - South-southeast
SSELY - South-southeasterly
SSERN - South-southeastern
SSEWD - South-southeastward
SSHP - Site Specific Hydrologic Prediction System
SST - sea surface temperature
SSW - South southwest
SSWLY - South-southwesterly
SSWRN - South-southwestern
SSWWD - South-southwestward
St or ST - Stratus
STAGN - Stagnation
STBL - Stable
STBLTY - Stability
STD - Standard
STDY - Steady
STF - Stratiform
STFR - Stratus fractus
STFRM - Stratiform
STG - Strong
STGLY - Strongly
STGR - Stronger
STGST - Strongest
STI - Storm Tracking Information
STLT - Satellite
STM - Storm
STMS - Storms
STN - Station
STN - Station
STNR - Stationary
STNRY - Stationary
STNS - Stations
STP - Storm Total Precipitation
SUB - Substitute
SUBTRPCL - Subtropical
SUF - Sufficient
SUFLY - Sufficiently
SUG - Suggest
SUGG - Suggesting
SUGS - Suggests
SUN - Sunday
SUP - Supply
SUPG - Supplying
SUPR - Superior
SUPS - Supplies
SUPSD - Supersede
SUPSDG - Superseding
SUPSDS - Supersedes
SVG - Serving
SVR - Severe Thunderstorm Warning or Severe
SVRL - Several
SW - Southwest or Spectrum Width
SWA - Severe Weather Analysis (SWA)
SWB - South-westbound
SWD - Southward
SWE - Snow Water Equivalent
SWEAT Index - Severe WEAther Threat Index
SWI - Showalter Index
SWLG - Swelling
SWLY - Southwesterly
SWO - SPC Mesoscale Discussions or Convective Outlook
SWODY1 - Day-1 Convective Outlook
SWODY2 - Day 2 Convective Outlook
SWOMCD - SELS Mesoscale Discussion
SWP - Severe Weather Probability
SWR - State Weather Roundup
SWRN - Southwestern
SWS - Severe Weather Statement
SWWD - Southwestward
SX - Stability index
SXN - Section
SXNS - Sections
SYNOP - Synoptic
SYNS - Synopsis
SYS - System
T - Thunder or Temperature
T. D. - Tropical Depression
T.S. - Tropical Storm
TAF - Terminal Aerodrome Forecast
TAFB - Tropical Analysis and Forecast Branch
TAS - True airspeed
TC - Tropical cyclone
TCE - Tropical Cyclone Position Estimate
TCM - Tropical Cyclone Forecasts/Advisory
TCNTL - Transcontinental
TCP - Public Tropical Cyclone Advisory
TCU - Towering Cumulus or Tropical Cyclone Update
TDA - Today
TDO - Tornado
TDWR - Terminal Doppler Weather Radar.
TEMP - Temperature
TEMPO - Temporary or temporarily
TEN - Theta-e Index
TEND - Trend forecast
THD - Thunderhead
THDR - Thunder
THK - Thick
THKNG - Thickening
THKNS - Thickness
THKR - Thicker
THKST - Thickest
THN - Thin
THNG - Thinning
THNR - Thinner
THNST - Thinnest
THP - Three-Hour Rainfall Rate
THR - Threshold
THRFTR - Thereafter
THRU - Through
THRUT -
Throughout
THSD - Thousand
THTN - Threaten
THTND -
Threatened
THTNG -
Threatening
THTNS - Threatens
THU - Thursday
TIL - Until
TIP - Until past ... (place)
TL... - Till (followed by time by which weather change is
forecast to end)
TMPRY - Temporary
TMPRYLY - Temporarilly
TMW - Tomorrow
TN - Tennessee
TNDCY - Tendency
TNDCYS - Tendencies
TNGT - Tonight
TNTV - Tentative
TNTVLY - Tentatively
TO - To... (place)
TOP - Cloud top
TOPS - Tops
TOR - Tornado Warning
TOVC - Top of overcast
TPC - Tropical Prediction Center
TPG - Topping
TR - Track
TRBL - Trouble
TRIB - Tributary
TRKG - Tracking
TRML -Terminal
TRMT - Terminate
TRMTD - Terminated
TRMTG - Terminating
TRMTS - Terminates
TRNSP - Transport
TRNSPG - Transporting
TROF - Trough
TROFS - Troughs
TROP - Tropopause
TRPCD - Tropical continental
TRPCL - Tropical
TRRN - Terrain
TRSN - Transition
TRW - Thunderstorm
TRW+ - Thunderstorm with heavy rain shower
TS - Thunderstorm
TSB - Technical Support Branch
TSFR - Transfer
TSFRD - Transfered
TSFRG - Transfering
TSFRS - Transfers
TSHWR - Thundershower
TSHWRS - Thundershowers
TSNT - Transient
TSQLS - Thundersqualls
TSTM - Thunderstorm
TSTMS - Thunderstorms
TT - Total Totals or Teletypewriter
TUE - Tuesday
TURB - Turbulence
TURBC - Turbulence
TURBT - Turbulent
TVS - Tornado Vortex Signature
TWD - Toward or Tropical Weather Discussion
TWDS - Towards
TWEB - Transcribed Weather Broadcasts Route Forecast
TWI - Twilight
TWO - Tropical Weather Outlook
TWRG - Towering
TWS - Tropical Weather Summary
TX - Texas
TYP - Type of aircraft
TYPH - Typhoon
U/S -
Unservicable
UAB - Until advised by ...
UCP - Unit Control Position
UDDF - Up and down
drafts
UFN - Until further notice
UIR - Upper flight information region
UKMET - United Kingdom METeorological Agency
ULJ - Upper Level Jet
UN - Unable
UNA - Unable
UNAVBL - Unavailable
UNEC - Unnecessary
UNKN - Unknown
UNL - Unlimited
UNREL - Unreliable
UNRELBL - Unreliable
UNRSTD - Unrestricted
UNSATFY - Unsatisfactory
UNSBL - Unseasonable
UNSTBL - Unstable
UNSTDY - Unsteady
UNSTL - Unsettle
UNSTLD - Unsettled
UNUSBL - Unusable
UPDFTS - Updrafts
UPR - Upper
UPSLP - Upslope
UPSTRM - Upstream
URG - Urgent
USACE - U.S. Army Corps of Engineers
USBL - Usable
USBR - U.S. Bureau of Reclamation
USFS - U.S. Forest Service
USGS - U.S. Geological Survey
UT - Utah
UTC - Coordinated Universal Time
UV - Ultraviolet
UVM - Upward Vertical Motion.
UVV - Upward Vertical Velocity
UVVS - Upward vertical velocities
UWNDS - Upper winds
V - Base Velocity
VA - Virginia or Volcanic Ash
VAD - Velocity-Azimuth Display
VAL - In valleys
VARN - Variation
VC - Vicinity
VCNTY - Vicinity
VCOT - VFR conditions on top
VCS - Velocity Cross Section
VCTR - Vector
VCY - Vicinity
VDUC - VAS Data Utilization Center (NSSFC)
VER - Vertical
VFR - Visual Flight Rules
VFY - Verify
VFYD - Verified
VFYG - Verifying
VFYS - Verifies
VHF - Very high frequency [30 to 300 MHz)
VIL - Vertically
Integrated Liquid Water
VIL - Vertically-Integrated Liquid water
VIP - Very important person
VIP - Video Integrator and Processor
VIS - Visibility or Visible
VLCTY - Velocity
VLCTYS - Velocities
VLNT - Violent
VLNTLY - Violently
VLY - Valley
VLYS - Valleys
VMC - Visual meteorological conditions
VOL - Volume
VOLMET - Meteorological information for aircraft in flight
VOMIT - VIL Of the Moment In Time
VOR - VHF omnidirectional radio range
VORT - Vorticity
VR - Veer
VRB - Variable
VRBL - Variable
VRG - Veering
VRISL - Vancouver Island, BC
VRS - Veers
VRT MOTN - Vertical Motion
VRY - Very
VSA - By visual reference to the ground
VSB - Visible
VSBY - Visibility
VSBYDR - Visibility decreasing rapidly
VSBYIR - Visibility increasing rapidly
VT - Vertical Totals or Vermont
VV - Vertical velocity
VVP - Volume Velocity Processing
VWP - Velocity Azimuth Display (VAD) Wind Profile
W - White, west, or west longitude
WA - Washington
WAA - Warm Air Advection
WAC - World Aeronautical Chart
WADL - West African Disturbance Line
WAFC - World area forecast center
WB - Westbound
WBND - West bound
WBZ - Wet-Bulb Zero
WCM - Warning Coordination Meteorologist
WDI - Wind direction indicator
WDLY - Widely
WDSPR - Widespread
WDSPRD - Widespread
WEA - Weather
WED - Wednesday
WEF - With effect from or effective from
WER - Weak Echo Region
WFO - Weather Forecast Office
WFOS - Weather Forecast Offices
WFP - Warm front passage
WI - Within or Wisconsin
WIBIS - Will be issued
WID - Width
WIE - With immediate effect or effective immediately
WILCO - Will comply
WIMS - Weather Information Management System
WINT - Winter
WINTEM - Forecast upper wind and temperature for aviation
WIP - Work in progress
WK - Weak
WKDAY - Weekday
WKEND - Weekend
WKN - Weaken or weakening
WKNG - Weakening
WKNS - Weakens
WKR - Weaker
WKST - Weakest
WL - Will
WLY - Westerly
WMO - World Meteorological Organization
WND - Wind
WNDS - Winds
WNW - West-northwest
WNWLY - West-northwesterly
WNWRN - West-northwestern
WNWWD - West-northwestward
WO - Without
WPLTO - Western Plateau
WRM - Warm
WRMFNT - Warm front
WRMFNTL - Warm Frontal
WRMG - Warming
WRMR - Warmer
WRMST - Warmest
WRN - Western
WRNG - Warning
WRNGS - Warnings
WRS - Worse
WS - Wind shear
WSFO - Weather Service Forecast Office
WSFOS - Weather Service Forecast Offices
WSHFT - Wind shift
WSHFTS - Wind Shifts
WSOM - National Weather Service Operations Manual
WSR-88D - Weather Surveillance Radar - 1988 Doppler; NEXRAD
unit.
WSR-74 - A NWS Weather Surveillance Radar designed in 1974.
WSR-57 - A NWS Weather Surveillance Radar designed in 1957.
WSTCH - Wasatch Range
WSW - West-southwest
WSWLY - West-southwesterly
WSWRN - West-southwestern
WSWWD - West-southwestward
WTR - Water
WTRS - Waters
WTSPT - Waterspout
WTSPTS - Waterspouts
WUD - Would
WV - West Virginia or Water Vapor
WVS - Waves
WW - Severe Thunderstorm Watch or Tornado Watch
WWA - Severe Thunderstorm Watch, Tornado Watch, or Watch
Status Reports
WWAMKC - Severe Thunderstorm or Tornado Watch Status Report
WWD - Westward
WWS - Severe Weather Watches
WX - Weather
WY - Wyoming
X - Cross
XBT - Abbreviation for expendable bathythermograph.
XCP - Except
XNG - Crossing
XPC - Expect
XPCD - Expected
XPCG - Expecting
XPCS - Expects
XPLOS - Explosive
XS - Atmospherics
XTND - Extend
XTNDD - Extended
XTNDG - Extending
XTRM - Extreme
XTRMLY - Extremely