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Common Weather Abbreviations


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ABNDT
Abundant
ABNML
Abnormal
ABT
About
ABV
Above
AC
Convective outlook
AC
altocumulus
ACC
Altocumulus castellanus clouds
ACCAS
Altocumulus castellanus clouds
ACFT
Aircraft
ACCUM
Accumulate
ACFT
Aircraft
ACLT
Accelerate
ACLTD
Accelerated
ACLTG
Accelerating
ACLTS
Accelerates
ACPY
Accompany
ACRS
Across
ACSL
Altocumulus standing lenticular
ACTV
Active
ACTVTY
Activity
ACYC
Anticyclone
ADJ
Adjacent
ADL
Additional
ADQT
Adequate
ADQTLY
Adequately
ADRNDCK
Adirondack
ADVCT
Advect
ADVCTD
Advected
ADVCTG
Advecting
ADVCTN
Advection
ADVCTS
Advects
ADVN
Advance
ADVNG
Advancing
ADVY
Advisory
ADVYS
Advisories
AFCT
Affect
AFCTD
Affected
AFCTG
Affecting
AFDK
After dark
AFOS
Automated Field Operations System
AFSS
Automated Flight Service Station
AFT
After
AFTN
Afternoon
AGL
Above ground level
AGN
Again
AGRD
Agreed
AGRS
Agrees
AGRMT
Agreement
AHD
Ahead
AIRMET
Airman’s Meteorological Information
AK
Alaska
AL
Alabama
ALF
Aloft
ALG
Along
ALGHNY
Allegheny
ALP
Airport Location Point
ALQDS
All quadrants
ALSTG
Altimeter setting
ALT
Altitude
ALTA
Alberta
ALTHO
Although
ALTM
Altimeter
ALUTN
Aleutian
AMD
Amend
AMDD
Amended
AMDG
Amending
AMDT
Amendment
AMP
Amplify
AMPG
Amplifying
AMPLTD
Amplitude
AMS
Air mass
AMT
Amount
ANLYS
Analysis
ANS
Answer
AO1
Automated Reporting Station
AO2
Automated Reporting Station
AOA
At or above
AOB
At or below
AP
Anomalous Propagation
APCH
Approach
APCHG
Approaching
APCHS
Approaches
APLCN
Appalachian
APLCNS
Appalachians
APPR
Appear
APPRG
Appearing
APPRS
Appears
APRNT
Apparent
APRNTLY
Apparently
APRX
Approximate
APRXLY
Approximately
AR
Arkansas
ARL
Air Resources Lab
ARND
Around
ARPT
Airport
ASAP
As soon as possible
ASL
Above Sea Level
ASMD
As Amended
ASOS
Automated Surface Observing System
ASSOCN
Association
ATCT
Air Traffic Control Tower
ATLC
Atlantic
ATTM
At this time
ATTN
Attention
AUTO
Automated report
AVBL
Available
AVG
Average
AVN
Aviation model
AWC
Aviation Weather Center
AWIPS
Advanced Interactive Weather Processing System
AWOS
Automated Weather Observing system
AWT
Awaiting
AWW
Alert Weather Watch
AZ
Arizona
AZM
Azimuth
B
Began
BACLIN
Baroclinic
BAJA
Baja
BATROP
Barotropic
BC
British Columbia or
BC
patches (descriptor used with FG)
BCFG
Patchy fog
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
BLD
Build
BLDG
Building
BLDS
Builds
BLDUP
Buildup
BLKHLS
Black Hills
BLKT
Blanket
BLKTG
Blanketing
BLKTS
Blankets
BLO
Below
BLO
Below clouds
BLW
Below
BLZD
Blizzard
BN
Blowing sand
BND
Bound
BNDRY
Boundary
BNDRYS
Boundaries
BNTH
Beneath
BOOTHEEL
Bootheel
BR
Branch
BR
mist (METAR
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
BTWN
Between
BWER
Bounded weak echo region
BYD
Beyond
C
Celsius
CA
California
CA
cloudto-air lightning in PIREPs
CAA
Cold air advection
CAPE
Convective available potential energy
CARIB
Caribbean
CAS
Committee for Aviation Services
CASCDS
Cascades
CAT
Clear air turbulence
CAVOK
Ceiling and visibility OK
CAVU
Ceiling and visibility unlimited
CB
Cumulonimbus
CBMAM
Cumulonimbus Mammatus clouds
CC
Cirrocumulus
CCCC
Generic WMO format code group for a four-letter location identifier
CCL
Convective condensation level
CCLDS
Clear of clouds
CCLKWS
Counterclockwise
CCSL
Cirrocumulus standing lenticular
CCx
Code used in the WMO abbreviated heading to indicate a corrected forecast
CDFNT
Cold front
CDFNTL
Cold frontal
CFP
Cold front passage
CHC
Chance
CHCS
Chances
CHG
Change
CHGD
Changed
CHGG
Changing
CHGS
Changes
CHI
Cloud-Height indicator
CHINO
Sky condition at secondary location not available
CHOP
Turbulence type characterized by rapid
CHSPK
Chesapeake
CI
Cirrus
CIG
Ceiling
CIGS
Ceilings
CIN
Convective inhibition
CLD
Cloud
CLDNS
Cloudiness
CLDS
Clouds
CLKWS
Clockwise
CLR
Clear
CLRG
Clearing
CLRS
Clears
CMPLX
Complex
CNCL
Cancel
CNCLD
Canceled
CNCLG
Canceling
CNCLS
Cancels
CNDN
Canadian
CNTR
Center
CNTRD
Centered
CNTRLN
Centerline
CNTRS
Centers
CNTRL
Central
CNTY
County
CNTYS
Counties
CNVG
Converge
CNVGG
Converging
CNVGNC
Convergence
CNVTN
Convection
CNVTV
Convective
CNVTVLY
Convectively
CONFDC
Confidence
CO
Colorado
COMPAR
Compare
COMPARG
Comparing
COMPARD
Compared
COMPARS
Compares
COMPR
Compare
COMPRG
Comparing
COMPRD
Compared
COMPRS
Compares
COND
Condition
CONS
Continuous
CONT
Continue
CONTD
Continued
CONTLY
Continually
CONTG
Continuing
CONTRAILS
Condensation trails
CONTS
Continues
CONTDVD
Continental Divide
CONUS
Continental U.S.
COORD
Coordinate
COR
Correction
CPBL
Capable
CPC
Climate Prediction Center
CRC
Circle
CRCLC
Circulate
CRCLN
Circulation
CRLC
Circulate
CRLN
Circulation
CRNR
Corner
CRNRS
Corners
CRS
Course
CS
Cirrostratus
CSDR
Consider
CSDRBL
Considerable
CST
Coast
CSTL
Coastal
CT
Connecticut
CTC
Contact
CTGY
Category
CTSKLS
Catskills
CU
Cumulus
CUFRA
Cumulus fractus
CVR
Cover
CVRD
Covered
CVRG
Covering
CVRS
Covers
CWSU
Center Weather Service Units
CYC
Cyclonic
CYCLGN
Cyclogenesis
DABRK
Daybreak
DALGT
Daylight
DBL
Double
DC
District of Columbia
DCR
Decrease
DCRD
Decreased
DCRG
Decreasing
DCRGLY
Decreasingly
DCRS
Decreases
DEG
Degree
DEGS
Degrees
DELMARVA
Delaware-MarylandVirginia
DFCLT
Difficult
DFCLTY
Difficulty
DFNT
Definite
DFNTLY
Definitely
DFRS
Differs
DFUS
Diffuse
DGNL
Diagonal
DGNLLY
Diagonally
DIGG
Digging
DIR
Direction
DISC
Discontinue
DISCD
Discontinued
DISCG
Discontinuing
DISRE
Disregard
DISRED
Disregarded
DISREG
Disregarding
DKTS
Dakotas
DLA
Delay
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
DNS
Dense
DNSLP
Downslope
DNSTRM
Downstream
DNWND
Downwind
DP
Deep
DPND
Deepened
DPNG
Deepening
DPNS
Deepens
DPR
Deeper
DPTH
Depth
DR
Low Drifting (descriptor used with DU
DRDU
Drifting dust
DRFT
Drift
DRFTD
Drifted
DRFTG
Drifting
DRFTS
Drifts
DRSA
Low drifting sand
DRSN
Low drifting snow
DRZL
Drizzle
DS
Duststorm
DSCNT
Descent
DSIPT
Dissipate
DSIPTD
Dissipated
DSIPTG
Dissipating
DSIPTN
Dissipation
DSIPTS
Dissipates
DSND
Descend
DSNDG
Descending
DSNDS
Descends
DSNT
Distant
DSTBLZ
Destabilize
DSTBLZD
Destabilized
DSTBLZG
Destabilizing
DSTBLZS
Destabilizes
DSTBLZN
Destabilization
DSTC
Distance
DTRT
Deteriorate
DTRTD
Deteriorated
DTRTG
Deteriorating
DTRTS
Deteriorates
DU
Widespread dust storm
DURC
During climb
DURD
During descent
DURG
During
DURGC
During climb
DURGD
During descent
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
DWPNT
Dew point
DWPNTS
Dew points
DX
Duplex
DZ
Drizzle (METAR)
E
East
EBND
Eastbound
ELNGT
Elongate
ELNGTD
Elongated
ELSW
Elsewhere
EMBD
Embedded
EMBDD
Embedded
EMERG
Emergency
ENCTR
Encounter
ENDG
Ending
ENE
East-northeast
ENELY
East-northeasterly
ENERN
East-northeastern
ENEWD
East-northeastward
ENHNC
Enhance
ENHNCD
Enhanced
ENHNCG
Enhancing
ENHNCS
Enhances
ENHNCMNT
Enhancement
ENRT
Enroute
ENTR
Entire
ERN
Eastern
ERY
Early
ERYR
Earlier
ESE
East-southeast
ESELY
East-southeasterly
ESERN
East-southeastern
ESEWD
East-southeastward
ESNTL
Essential
ESTAB
Establish
EST
Estimate
ESTS
Estimates
ETA
Estimated time of arrival
ETA
ETA Model
ETC
Et cetera
ETIM
Elapsed time
EVE
Evening
EWD
Eastward
EXCLV
Exclusive
EXCLVLY
Exclusively
EXCP
Except
EXPC
Expect
EXPCD
Expected
EXPCG
Expecting
EXTD
Extend
EXTDD
Extended
EXTDG
Extending
EXTDS
Extends
EXTN
Extension
EXTRAP
Extrapolate
EXTRAPD
Extrapolated
EXTRM
Extreme
EXTRMLY
Extremely
EXTSV
Extensive
F
Fahrenheit
FA
Aviation area forecast
FAH
Fahrenheit
FAM
Familiar
FC
Funnel cloud
+FC
Tornado or water spout
FCST
Forecast
FCSTD
Forecasted
FCSTG
Forecasting
FCSTR
Forecaster
FCSTS
Forecasts
FEW
Few (used to describe cloud cover or weather phenomena
FG
Fog (METAR
FIBI
Filed but impracticable to transmit
FIG
Figure
FILG
Filling
FIR
Flight information region
FIRAV
First available
FIS
Flight Information Service
FIS-B
Flight Information Service - Broadcast
FIRST
First observation after a break in coverage at manual station
FL
Florida or flight level
FLG
Falling
FLRY
Flurry
FLRYS
Flurries
FLT
Flight
FLW
Follow
FLWG
Following
FM
From
FMGGgg
From the time (UTC) indicated by GGgg. Generic WMO format code group
FMT
Format
FNCTN
Function
FNT
Front
FNTL
Frontal
FNTS
Fronts
FNTGNS
Frontogenesis
FNTLYS
Frontolysis
FORNN
Forenoon
FPM
Feet per minute
FQT
Frequent
FQTLY
Frequently
FRM
Form
FRMG
Forming
FRMN
Formation
FROPA
Frontal passage
FROSFC
Frontal surface
FRQ
Frequent
FRST
Frost
FRWF
Forecast wind factor
FRZ
Freeze
FRZLVL
Freezing level
FRZN
Frozen
FRZG
Freezing
FT
Feet
FT
Terminal Forecast
FTHR
Further
FU
Smoke
FV
Flight visibility
FVRBL
Favorable
FWD
Forward
FYI
For your information
FZ
Freezing
FZRANO
Freezing rain sensor not available
G
Gust
GA
Georgia
GEN
General
GENLY
Generally
GEO
Geographic
GEOREF
Geographical reference
GF
Fog
GICG
Glaze icing
GLFALSK
Gulf of Alaska
GLFCAL
Gulf of California
GLFMEX
Gulf of Mexico
GLFSTLAWR
Gulf of St. Lawrence
GND
Ground
GNDFG
Ground fog
GOES
Geostationary Operational Environmental Satellite
GR
Hail (greater than 1/4 inch in diameter)
GRAD
Gradient
GRDL
Gradual
GRDLY
Gradually
GRT
Great
GRTLY
Greatly
GRTR
Greater
GRTST
Greatest
GRTLKS
Great Lakes
GS
Small hail or snow pellets (smaller than 1/4 inch in diameter)
GSTS
Gusts
GSTY
Gusty
GTS
Global Telecommunication System
GV
Ground visibility
HAZ
Hazard
HCVIS
High clouds visible
HDFRZ
Hard freeze
HDSVLY
Hudson Valley
HDWND
Head wind
HGT
Height
HI
High or Hawaii
HIER
Higher
HIFOR
High level forecast
HLF
Half
HLTP
Hilltop
HLSTO
Hailstones
HLYR
Haze layer
HND
Hundred
HPC
Hydrometeorological Prediction Center
HR
Hour
HRS
Hours
HRZN
Horizon
HTG
Heating
HURCN
Hurricane
HUREP
Hurricane report
HV
Have
HVY
Heavy
HVYR
Heavier
HVYST
Heaviest
HWVR
However
HWY
Highway
HZ
Haze
IA
Iowa
IC
Ice crystals or ice
ICAO
International Civil Aviation Organization
ICG
Icing
ICGIC
Icing in clouds
ICGICIP
Icing in clouds and
in
precipitation
ICGIP
Icing in precipitation
ID
Idaho
IFR
Instrument flight rules
IL
Illinois
IMC
Instrument meteorolgical conditions
IMDT
Immediate
IMDTLY
Immediately
IMPL
Impulse
IMPLS
Impulses
IMPT
Important
INCL
Include
INCLD
Included
INCLG
Including
INCLS
Includes
INCR
Increase
INCRD
Increased
INCRG
Increasing
INCRGLY
Increasingly
INCRS
Increases
INDCD
Indicated
INDCG
Indicating
INDCS
Indicates
INDEF
Indefinite
INFO
Information
INLD
Inland
INSTBY
Instability
INTCNTL
Intercontinental
INTER
Intermittent
INTL
International
INTMD
Intermediate
INTMT
Intermittent
INTMTLY
Intermittently
INTR
Interior
INTRMTRGN
Intermountain region
INTS
Intense
INTSFCN
Intensification
INTSFY
Intensify
INTSFYD
Intensified
INTSFYG
Intensifying
INTSFYS
Intensifies
INTSTY
Intensity
INTVL
Interval
INVRN
Inversion
IOVC
In overcast
INVOF
In vicinity of
IP
Ice pellets
IPV
Improve
IPVG
Improving
IR
Infrared
ISOL
Isolate
ISOLD
Isolated
JCTN
Junction
JTSTR
Jet stream
KFRST
Killing frost
KLYR
Smoke layer aloft
KOCTY
Smoke over city
KS
Kansas
KT
Knots
KY
Kentucky
L
Left
LA
Louisiana
LABRDR
Labrador
LAPS
Local Analysis and
Prediction
System
LAMP
Local AWIPS MOS Program
LAST
Last observation before a break in coverage at a manual station
LAT
Latitude
LAWRS
Limited aviation weather reporting station
LCL
Local
LCL
Lifted condensation level
LCLY
Locally
LCTD
Located
LCTN
Location
LCTMP
Little change in temperature
LDG
Landing
LEVEL
Level
LFM
Limited fine mesh model
LFTG
Lifting
LGRNG
Long-range
LGT
Light
LGTR
Lighter
LGWV
Long wave
LI
Lifted Index
LIFR
Low instrument flight rules
LIS
Lifted Indices
LK
Lake
LKS
Lakes
LKLY
Likely
LLJ
Low level jet
LLWAS
Low-level wind shear alert system
LLWS
Low-level wind shear
LMTD
Limited
LMTG
Limiting
LMTS
Limits
LN
Line
LNS
LInes
LO
Low
LONG
Longitude
LONGL
Longitudinal
LRG
Large
LRGLY
Largely
LRGR
Larger
LRGST
Largest
LST
Local standard time
LTD
Limited
LTG
Lightning
LTGCA
Lightning cloud-toair
LTGCC
Lightning cloud-tocloud
LTGCG
Lightning cloud-toground
LTGCCCG
Lightning cloud-tocloud cloud-toground
LTGCW
Lightning cloud-towater
LTGIC
Lightning in cloud
LTL
Little
LTLCG
Little change
LTR
Later
LTST
Latest
LV
Leaving
LVL
Level
LVLS
Levels
LWR
Lower
LWRD
Lowered
LWRG
Lowering
LYR
Layer
LYRD
Layered
LYRS
Layers
M
Minus or Less than lowest sensor value
MA
Massachusetts
MAN
Manitoba
MAX
Maximum
MB
Millibars
MCD
Mesoscale discussion
MD
Maryland
MDFY
Modify
MDFYD
Modified
MDFYG
Modifying
MDL
Model
MDLS
Models
MDT
Moderate
MDTLY
Moderately
ME
Maine
MED
Medium
MEGG
Merging
MESO
Mesoscale
MET
Meteorological
METAR
Aviation Routine Weather Report
METRO
Metropolitan
MEX
Mexico
MHKVLY
Mohawk Valley
MI
Michigan
MI
mile
MI
shallow
MID
Middle
MIDN
Midnight
MIL
Military
MIN
Minimum
MIFG
Shallow fog
MISG
Missing
MLTLVL
Melting level
MN
Minnesota
MNLD
Mainland
MNLY
Mainly
MO
Missouri
MOD
Moderate
MOGR
Moderate or greater
MOS
Model Output Statistics
MOV
Move
MOVD
Moved
MOVG
Moving
MOVMT
Movement
MOVS
Moves
MPH
Miles per hour
MRGL
Marginal
MRGLLY
Marginally
MRNG
Morning
MRTM
Maritime
MS
Mississippi
MSG
Message
MSHP
Aircraft mishap
MSL
Mean sea level
MST
Most
MSTLY
Mostly
MSTR
Moisture
MT
Montana
MTN
Mountain
MTNS
Mountains
MULT
Multiple
MULTILVL
Multilevel
MVFR
Marginal visual flight rules
MWO
Meteorological Watch Office
MX
Mixed (characterized as a combination of clear and rime ice
MXD
Mixed
N
North
N/A
Not applicable
NAB
Not above
NAT
North Atlantic
NATL
National
NAV
Navigation
NAVAID
Electronic navigation aid facility (limited to VOR or VORTAC for PIREPs)
NB
New Brunswick
NBND
Northbound
NBRHD
Neighborhood
NC
North Carolina
NCDC
National Climatic Data Center
NCEP
National Center of Environmental Prediction
NCO
NCEP Central Operations
NCWX
No change in weather
ND
North Dakota
NE
Northeast
NEB
Nebraska
NEC
Necessary
NEG
Negative
NEGLY
Negatively
NELY
Northeasterly
NERN
Northeastern
NEWD
Northeastward
NEW
ENG New England
NFLD
Newfoundland
NGM
Nested grid model
NGT
Night
NHC
National Hurricane Center
NIL
None
NJ
New Jersey
NL
No layers
NLT
Not later than
NLY
Northerly
NM
New Mexico
NMBR
Number
NMBRS
Numbers
NMC
National Meteorological Center
NML
Normal
NMRS
Numerous
NNE
North-northeast
NNELY
North-northeasterly
NNERN
North-northeastern
NNEWD
North-northeastward
NNW
North-northwest
NNWLY
North-northwesterly
NNWRN
North-northwestern
NNWWD
North-northwestward
NNNN
End of message
NOAA
National Oceanic and Atmospheric Administration
NOPAC
Northern Pacific
NOS
National Ocean Service
NOSPECI
No SPECI reports are taken at station
NPRS
Nonpersistent
NR
Near
NRLY
Nearly
NRN
Northern
NRW
Narrow
NS
Nova Scotia
NSC
No significant cloud
NSW
No significant weather
NTFY
Notify
NTFYD
Notified
NV
Nevada
NVA
Negative vorticity advection
NW
Northwest
NWD
Northward
NWLY
Northwesterly
NWRN
Northwestern
NWS
National Weather Service
NY
New York
NXT
Next
OAT
Outside air temperature
OBND
Outbound
OBS
Observation
OBSC
Obscure
OBSCD
Obscured
OBSCG
Obscuring
OCFNT
Occluded front
OCLD
Occlude
OCLDS
Occludes
OCLDD
Occluded
OCLDG
Occluding
OCLN
Occlusion
OCNL
Occasional
OCNLY
Occasionally
OCR
Occur
OCRD
Occurred
OCRG
Occurring
OCRS
Occurs
OFC
Office
OFCM
Office of the Federal Coordinator for Meteorology
OFP
Occluded frontal passage
OFSHR
Offshore
OH
Ohio
OHD
Overhead
OK
Oklahoma
OMTNS
Over mountains
ONSHR
On shore
OR
Oregon
ORGPHC
Orographic
ORIG
Original
OSV
Ocean station vessel
OTLK
Outlook
OTP
On top
OTR
Other
OTRW
Otherwise
OUTFLO
Outflow
OV
Over
OVC
Overcast
OVHD
Overhead
OVNGT
Overnight
OVR
Over
OVRN
Overrun
OVRNG
Overrunning
OVTK
Overtake
OVTKG
Overtaking
OVTKS
Overtakes
P
Higher than greatest sensor value
P6SM
Visibility forecast to be greater than 6 statute miles
PA
Pennsylvania
PAC
Pacific
PATWAS
Pilot's automatic telephone weather answering service
PBL
Planetary boundary layer
PCPN
Precipitation
PD
Period
PDS
Periods
PE
Ice pellets
PEN
Peninsula
PERM
Permanent
PGTSND
Puget Sound
PHYS
Physical
PIBAL
Pilot balloon observation
PIREP
Pilot weather report
PK
WND Peak wind
PL
Ice pellets
PLNS
Plains
PLS
Please
PLTO
Plateau
PM
Postmeridian
PNHDL
Panhandle
PNO
Precipitation amount not available
PO
Dust/ sand swirls
POS
Positive
POSLY
Positively
PPINA
Radar weather report not available
PPINE
Radar weather report no echoes observed
PPSN
Present position
PR
Partial
PRBL
Probable
PRBLY
Probably
PRBLTY
Probability
PRECD
Precede
PRECDD
Preceded
PRECDG
Preceding
PRECDS
Precedes
PRES
Pressure
PRESFR
Pressure falling rapidly
PRESRR
Pressure rising rapidly
PRFG
Partial fog
PRIM
Primary
PRIN
Principal
PRIND
Present indications
PRJMP
Pressure jump
PROB
Probability
PROBC
Forecaster’s assessment of the probability of occurrence of a thunderstorm or precipitation event
PROC
Procedure
PROD
Produce
PRODG
Producing
PROG
Forecast
PROGD
Forecasted
PROGS
Forecasts
PRSNT
Present
PRSNTLY
Presently
PRST
Persist
PRSTS
Persists
PRSTNC
Persistence
PRSTNT
Persistent
PRVD
Provide
PRVDD
Provided
PRVDG
Providing
PRVDS
Provides
PS
Plus
PSBL
Possible
PSBLY
Possibly
PSBLTY
Possibility
PSG
Passage
PSN
Position
PSND
Positioned
PTCHY
Patchy
PTLY
Partly
PTNL
Potential
PTNLY
Potentially
PTNS
Portions
PUGET
Puget Sound
PVA
Positive vorticity advection
PVL
Prevail
PVLD
Prevailed
PVLG
Prevailing
PVLS
Prevails
PVLT
Prevalent
PWB
Pilot weather briefing
PWINO
Precipitation identifier sensor not available
PWR
Power
PY
Spray
QN
Question
QPFERD
NCEP excessive rainfall discussion
QPFHSD
NCEP heavy snow discussion
QPFSPD
NCEP special precipitation discussion
QSTNRY
Quasistationary
QTR
Quarter
QUAD
Quadrant
QUE
Quebec
R
Right (with reference to runway designation)
R
rain
RA
Rain (METAR)
RADAT
Radiosonde additional data
RAOB
Radiosonde observation
RCA
Reach Cruising Altitude
RCH
Reach
RCHD
Reached
RCHG
Reaching
RCHS
Reaches
RCKY
Rocky
RCKYS
Rockies
RCMD
Recommend
RCMDD
Recommended
RCMDS
Recommends
RCRD
Record
RCRDS
Records
RCV
Receive
RCVD
Received
RCVG
Receiving
RCVS
Receives
RDC
Reduce
RDGG
Ridging
RDR
Radar
RDVLP
Redevelop
RDVLPG
Redeveloping
RDVLPMT
Redevelopment
RE
Regard
RECON
Reconnaissance
REF
Reference
RES
Reserve
REPL
Replace
REPLD
Replaced
REPLG
Replacing
REPLS
Replaces
REQ
Request
REQS
Requests
REQSTD
Requested
RESP
Response
RESTR
Restrict
RGD
Ragged
RGL
Regional model
RGLR
Regular
RGN
Region
RGNS
Regions
RGT
Right
RH
Relative humidity
RHINO
RHI not operative
RI
Rhode Island
RIME
Type of icing characterized by a rough
RIOGD
Rio Grande
RLBL
Reliable
RLTV
Relative
RLTVLY
Relatively
RM
Remarks
RMK
Remark
RMN
Remain
RMND
Remained
RMNDR
Remainder
RMNG
Remaining
RMNS
Remains
RNFL
Rainfall
RNG
Range
ROT
Rotate
ROTD
Rotated
ROTG
Rotating
ROTS
Rotates
RPD
Rapid
RPDLY
Rapidly
RPLC
Replace
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
RRx
Code used in the WMO abbreviated heading to indicate a delayed forecast
RS
Receiver station
RSG
Rising
RSN
Reason
RSNG
Reasoning
RSNS
Reasons
RSTR
Restrict
RSTRD
Restricted
RSTRG
Restricting
RSTRS
Restricts
RTRN
Return
RTRND
Returned
RTRNG
Returning
RTRNS
Returns
RUC
Rapid Update Cycle
RUF
Rough
RUFLY
Roughly
RVR
Runway Visual Range
RVRNO
RVR system not available
RVS
Revise
RVSD
Revised
RVSG
Revising
RVSS
Revises
RW
Rain shower
RWY
Runway
RY
Runway
S
South
SA
Sand (METAR)
SAB
Satellite Analysis Branch
SASK
Saskatchewan
SATFY
Satisfactory
SBND
Southbound
SBSD
Subside
SBSDD
Subsided
SBSDNC
Subsidence
SBSDS
Subsides
SC
South Carolina
SC
stratocumulus
SCND
Second
SCNDRY
Secondary
SCSL
Stratocumulus standing lenticular
SCT
Scatter
SCT
Scattered (describing cloud cover or weather phenomena
SCTD
Scattered
SCTR
Sector
SD
South Dakota
SE
Southeast
SEC
Second
SELY
Southeasterly
SEPN
Separation
SEQ
Sequence
SERN
Southeastern
SEV
Severe
SEWD
Southeastward
SFC
Surface
SFERICS
Atmospherics
SG
Snow grains
SGFNT
Significant
SGFNTLY
Significantly
SH
Showers
SHFT
Shift
SHFTD
Shifted
SHFTG
Shifting
SHFTS
Shifts
SHLD
Shield
SHLW
Shallow
SHRT
Short
SHRTLY
Shortly
SHRTWV
Shortwave
SHUD
Should
SHWR
Shower
SIERNEV
Sierra Nevada
SIG
Signature
SIGMET
Significant meteorological information
SIMUL
Simultaneous
SK
Sky cover
SKC
Sky clear
SKED
Schedule
SLD
Solid
SLGT
Slight
SLGTLY
Slightly
SLO
Slow
SLOLY
Slowly
SLOR
Slower
SLP
Slope
SLP
sea level pressure
SLPG
Sloping
SLPNO
Sea-level pressure not available
SLT
Sleet
SLW
Slow
SLY
Southerly
SM
Statute mile
SMK
Smoke
SML
Small
SMLR
Smaller
SMRY
Summary
SMS
Synchronous meteorological satellite
SMTH
Smooth
SMTHR
Smoother
SMTHST
Smoothest
SMTM
Sometime
SMWHT
Somewhat
SN
Snow
SNBNK
Snowbank
SND
Sand
SNFLK
Snowflake
SNGL
Single
SNOINCR
Snow increase
SNOINCRG
Snow increasing
SNST
Sunset
SNW
Snow
SNWFL
Snowfall
SOP
Standard operating procedure
SP
Snow pellets
SPC
Storm Prediction Center
SPCLY
Especially
SPD
Speed
SPECI
Special observation
SPENES
Satellite precipitation estimate statement
SPKL
Sprinkle
SPLNS
Southern Plains
SPRD
Spread
SPRDG
Spreading
SPRDS
Spreads
SPRL
Spiral
SQ
Squall
SQAL
Squall
SQLN
Squall line
SRN
Southern
SRND
Surround
SRNDD
Surrounded
SRNDG
Surrounding
SRNDS
Surrounds
SS
Sunset
SS
sand storm (METAR)
SSE
South-southeast
SSELY
South-southeasterly
SSERN
South-southeastern
SSEWD
South-southeastward
SSW
South-southwest
SSWLY
South-southwesterly
SSWRN
South-southwestern
SSWWD
South-southwestward
ST
Stratus
STAGN
Stagnation
STBL
Stable
STBLTY
Stability
STD
Standard
STDY
Steady
STFR
Stratus fractus
STFRM
Stratiform
STG
Strong
STGLY
Strongly
STGR
Stronger
STGST
Strongest
STLT
Satellite
STM
Storm
STMS
Storms
STN
Station
STNRY
Stationary
SUB
Substitute
SUBTRPCL
Subtropical
SUF
Sufficient
SUFLY
Sufficiently
SUG
Suggest
SUGG
Suggesting
SUGS
Suggests
SUP
Supply
SUPG
Supplying
SUPR
Superior
SUPSD
Supersede
SUPSDG
Superseding
SUPSDS
Supersedes
SVG
Serving
SVR
Severe
SVRL
Several
SW
Southwest
SW-
Light snow shower
SW+
Heavy snow shower
SWD
Southward
SWLG
Swelling
SWLY
Southwesterly
SWODY1
SPC Severe Weather Outlook for Day 1
SWOMCD
SPC Mesoscale discussion
SWRN
Southwestern
SWWD
Southwestward
SX
Stability index
SXN
Section
SYNOP
Synoptic
SYNS
Synopsis
SYS
System
T
Thunder
TA
Temperature
TACAN
UHF Tactical Air Navigation Aid
TAF
Terminal Area Forecast
TB
Turbulence
TCNTL
Transcontinental
TCU
Towering cumulus
TDA
Today
TEI
Text element indicator
TEMP
Temperature
TEMPO
Temporary
THD
Thunderhead
THDR
Thunder
THK
Thick
THKNG
Thickening
THKNS
Thickness
THKR
Thicker
THKST
Thickest
THN
Thin
THNG
Thinning
THNR
Thinner
THNST
Thinnest
THR
Threshold
THRFTR
Thereafter
THRU
Through
THRUT
Throughout
THSD
Thousand
THTN
Threaten
THTND
Threatened
THTNG
Threatening
THTNS
Threatens
TIL
Until
TKOF
Takeoff
TM
Time
TMPRY
Temporary
TMPRYLY
Temporarily
TN
Tennessee
TNDCY
Tendency
TNDCYS
Tendencies
TNGT
Tonight
TNTV
Tentative
TNTVLY
Tentatively
TOC
Top of Climb
TOP
Top of Clouds
TOPS
Tops
TOVC
Top of overcast
TP
Type of aircraft
TPG
Topping
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 air mass
TRPCL
Tropical
TRRN
Terrain
TRSN
Transition
TRW
Thunderstorm
TRW+
Thunderstorm with heavy rain shower
TS
Thunderstorm (METAR)
TS
+ Thunderstorm with heavy snow
TSFR
Transfer
TSFRD
Transferred
TSFRG
Transferring
TSFRS
Transfers
TSHWR
Thundershower
TSNO
Thunderstorm information
not
available
TSNT
Transient
TSQLS
Thundersquall
TSTM
Thunderstorm
TSW
Thunderstorm with snow showers
TSW+
Thunderstorm with heavy snow showers
TURBC
Turbulence
TURBT
Turbulent
TWD
Toward
TWDS
Towards
TWI
Twilight
TWR
Tower
TWRG
Towering
TX
Texas
UA
Pilot weather reports
UDDF
Up- and downdrafts
UN
Unable
UNAVBL
Unavailable
UNEC
Unnecessary
UNKN
Unknown
UNL
Unlimited
UNRELBL
Unreliable
UNRSTD
Unrestricted
UNSATFY
Unsatisfactory
UNSBL
Unseasonable
UNSTBL
Unstable
UNSTDY
Unsteady
UNSTL
Unsettle
UNSTLD
Unsettled
UNUSBL
Unusable
UP
Unknown precipitation (used only by automated sites incapable of discrimination)
UPDFTS
Updrafts
UPR
Upper
UPSLP
Upslope
UPSTRM
Upstream
URG
Urgent
USBL
Usable
UT
Utah
UTC
Universal Time Coordinate
UUA
Urgent PIREP Weather Reports
UVV
Upward vertical velocity
UWNDS
Upper winds
V
Varies
VA
Virginia or Volcanic Ash
VAAC
Volcanic Ash Advisory Center
VAAS
Volcanic Ash Advisory Statement
VAD
Velocity azimuth display
VAL
Valley
VARN
Variation
VC
Vicinity
VCNTY
Vicinity
VCOT
VFR conditions on top
VCTR
Vector
VCTS
Thunderstorms in the vicinity
VDUC
VAS Data Utilization Center (NSSFC)
VFR
Visual flight rules
VFY
Verify
VFYD
Verified
VFYG
Verifying
VFYS
Verifies
VIS
Visibility
VSNO
Visibility at secondary location not available
VLCTY
Velocity
VLCTYS
Velocities
VLNT
Violent
VLNTLY
Violently
VLY
Valley
VMC
Visual meteorological conditions
VOL
Volume
VOR
VHF Omnidirectional Radio Range
VORT
Vorticity
VORTAC
VOR and TACAN combination
VR
Veer
VRB
Variable
VRG
Veering
VRBL
Variable
VRISL
Vancouver Island
VRS
Veers
VRT
MOTN Vertical motion
VRY
Very
VSB
Visible
VSBY
Visibility
VSBYDR
Visibility decreasing rapidly
VSBYIR
Visibility increasing rapidly
VT
Vermont
VV
Vertical velocity
VV
vertical visibility
VWP
VAD Wind profiler
W
West
WA
Washington
WAA
Warm air advection
WAFS
Word Area Forecast System
WBND
Westbound
WDLY
Widely
WDSPRD
Widespread
WEA
Weather
WFO
Weather Forecast Office
WFSO
Weather Forecast Service Office
WFP
Warm front passage
WI
Wisconsin
WIBIS
Will be issued
WINT
Winter
WK
Weak
WKDAY
Weekday
WKEND
Weekend
WKNG
Weakening
WKNS
Weakens
WKR
Weaker
WKST
Weakest
WKN
Weaken
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
WRMG
Warming
WRMR
Warmer
WRMST
Warmest
WRMFNT
Warm front
WRMFNTL
Warm frontal
WRN
Western
WRNG
Warning
WRS
Worse
WS
Wind shear
WSHFT
Windshift
WSFO
Weather Service Forecast Office
WSO
Weather service office
WSR-88D
NWS Doppler Radar
WSTCH
Wasatch Range
WSW
West-southwest
WSWLY
West-southwesterly
WSWRN
West-southwestern
WSWWD
West-southwestward
WTR
Water
WTSPT
Waterspout
WUD
Would
WV
West Virginia or wind
WVS
Waves
WW
Severe weather watch
WWAMKC
SPC status report
WWD
Westward
WWS
Severe weather watches
WX
Weather
WY
Wyoming
XCP
Except
XPC
Expect
XPCD
Expected
XPCG
Expecting
XPCS
Expects
XPLOS
Explosive
XTND
Extend
XTNDD
Extended
XTRM
Extreme
XTRMLY
Extremely
YDA
Yesterday
YKN
Yukon
YLSTN
Yellowstone
Z
Zulu time
ZL
Freezing drizzle
ZN
Zone
ZNS
Zones
ZR
Freezing rain