A |
PREDEDING 4 DIGITS ALTIMETER (METAR) |
A01 |
AUTOMATED OBSERVATION WITHOUT PRECIPITATION DISCRIMINATOR |
A02 |
AUTOMATED OBSERVATION WITH PRECIPITATION DISCRIMINATOR |
AAWF |
AUXILIARY AVIATION WEATHER FACILITY |
ACYC |
ANTICYCLONIC |
ADV |
ADVISE |
ADVCTN |
ADVECTION |
ADVY |
ADVISORY |
AFC |
AREA FORECAST CENTER |
AFDK |
AFTER DARK |
ALF |
ALOFT |
ALSEC |
ALL SECTORS |
ALQDS |
ALL QUADRANTS |
ALWF |
ACTUAL WIND FACTOR |
AMD |
AMENDED FORECAST (TAF) |
AMS |
AIR MASS |
ANLYS |
ANALYSIS |
ASOS |
AUTOMATED SURFACE OBSERVING SYSTEM |
ATLC |
ATLANTIC |
AURBO |
AURORA BOREALIS |
AUTO |
AUTOMATED (METAR) NO HUMAN INTERVENTION |
AWOS |
AUTOMATIC WEATHER OBSERVING/REPORTING SYSTEM |
AWP |
AVIATION WEATHER PROCESSORS |
|
|
B |
BEGINNING OF PRECIPITATION (TIME IN MINUTES) (WX REPORTS ONLY) |
BCH |
BEACH |
BCKG |
BACKING |
BDA |
BERMUDA |
BECMG |
BECOMING(EXPECTED BETWEEN 2 DIGIT BEGINNING HOUR AND 2 DIGIT ENDING HOUR) |
BFDK |
BEFORE DARK |
BINOVC |
BREAKS IN OVERCAST
BKN BROKEN
BL BETWEEN LAYERS |
BL |
BLOWING (METAR) |
BLD |
BUILD |
BLDUP |
BUILDUP |
BLKT |
BLANKET |
BLO |
BELOW (ICAO) |
BLO |
BELOW CLOUDS (METAR) |
BLW |
BELOW (ICAO) |
BLZD |
BLIZZARD |
BMS |
BASIC METEOROLOGICAL SERVICES |
BNDRY |
BOUNDARY |
BOVC |
BASE OF OVERCAST |
BRF |
BRIEF |
BRK |
BREAK |
BRKHIC |
BREAKS IN HIGHER OVERCAST |
BRM |
BAROMETER |
BTL |
BETWEEN LAYERS |
BTWN |
BETWEEN |
|
|
C |
CENTRAL STANDARD TIME (TIME GROUPS ONLY) |
C |
CONTINENTAL (AIR MASS) |
CA |
CLEAR ABOVE (PIREP ONLY) |
CAN |
CANADA |
CARIB |
CARIBBEAN |
CASCDS |
CASCADES |
CAT |
CLEAR AIR TURBULENCE (GENERAL) |
CAVOK |
CLOUD AND VISIBILITY OK (METAR) |
CAVU |
CLEAR OR SCATTERED CLOUDS AND VISIBILIY GREATER THAN TEN MILES |
CAWS |
COMMON AVIATION WEATHER SUB-SYSTEM |
CCLKWS |
COUNTERCLOCKWISE |
CDFNT |
COLD FRONT |
CFP |
COLD FRONT PASSAGE |
CHARC |
CHARACTERISTIC |
CHC |
CHANCE |
CHSPK |
CHESAPEAKE |
CIG |
CEILING |
CLD |
CLOUD |
CLR |
CLEAR AT OR BELOW 12,000 FEET (AWOS/ASOS/METAR) |
CLR |
CLEAR |
CLRS |
CLEAR AND SMOOTH |
CNCL |
CANCEL |
CNDN |
CANADIAN |
CNVTV |
CONVECTIVE |
CONFDC |
CONFIDENCE |
CONT |
CONTINUE OR CONTINUOUSLY (GEN) |
CONTDVD |
CONTINENTAL DIVIDE |
COR |
CORRECTION TO THE OBSERVATION |
CST |
COAST |
CTGY |
CATEGORY |
CTSKLS |
CATSKILLS |
CYC |
CYCLONIC |
CYCLGN |
CYCLOGENESIS |
|
|
DABRK |
DAYBREAK |
DCAVU |
CLEAR/SCATTERED CLOUDS. VISIBILITY GREATER
THAN 10, REMAINDER OF REPORT MISSING |
DKTS |
DAKOTAS |
DMSH |
DIMINISH |
DNS |
DENSE |
DNSLP |
DOWNSLOPE |
DNSTRM |
DOWNSTREAM |
DPNG |
DEEPENING |
DPTH |
DEPTH |
DR |
LOW DRIFTING (METAR) |
DRFT |
DRIFT |
DRZL |
DRIZZLE |
DSIPT |
DISSIPATE |
DTLN |
INTERNATIONAL DATELINE |
DTRT |
DETERIORATE |
DURC |
DURING CLIMB (PIREP) |
DURD |
DURING DECENT (PIREP) |
DVV |
DOWNWARD VERTICAL VELOCITY |
DWNDRTS |
DOWNDRAFTS |
DWPNT |
DEW POINT |
|
|
E |
EASTERN STANDARD TIME (TIME GROUPS ONLY) |
E |
ENDING OF PRECIPITATION (IN MINUTE-METAR) |
E |
EQUATORIAL (AIR MASS) |
E |
ESTIMATED (WEATHER REPORTS ONLY) |
ELNGT |
ELONGATE |
EMBDD |
EMBEDDED |
EMSU |
ENVIRONMENT METEOROLOGICAL SUPPORT UNIT |
ENERN |
EAST-NORTHEASTERN (WEATHER REPORTS ONLY) |
ENEWD |
EAST-NORTHEASTWARD (WEATHER REPORTS ONLY) |
EOF |
EXPECTED OPERATIONS FORECAST |
ESERN |
EAST-SOUTHEASTERN (WEATHER REPORTS ONLY) |
ESEWD |
EAST-SOUTHEASTWARD (WEATHER REPORTS ONLY) |
EXTRAP |
EXTRAPOLATE |
EXTRM |
EXTREME |
|
|
FA |
AREA FORECAST |
FAH |
FAHRENHEIT |
FEW |
1 OR 2 OCTAS (EIGHTHS) CLOUD COVERAGE |
FIBI |
FILED BUT IMPRACTICAL TO TRANSMIT |
FILG |
FILLING |
FINO |
WEATHER REPORT WILL NOT BE FILED FOR TRANSMISSION |
/FL |
ALTITUDE/FLIGHT LEVEL (PIREP) |
FL |
FLASH ADVISORY |
FLDST |
FLOOD STAGE |
FLG |
FALLING |
FLWIS |
FLOOD WARNING ISSUED |
FM |
FROM (4 DIGIT BEGINNING TIME IN HOURS AND MINUTES) |
FNT |
FRONT |
FNTGNS |
FRONTOGENESIS |
FNTLYS |
FRONTOLYSIS |
FORNN |
FORENOON |
FRMG |
FORMING |
FROPA |
FRONTAL PASSAGE |
FROSFC |
FRONTAL SURFACE |
FRST |
FROST |
FRWF |
FORECAST WIND FACTOR |
FRZ |
FREEZE |
FRZLVL |
FREEZING LEVEL |
FRZN |
FROZEN
FT FEET (GEN) |
FRQ |
FREQUENT (ICAO) |
FULYR |
SMOKE LAYER ALOFT |
FUOCTY |
SMOKE OVER CITY |
FWC |
FLEET WEATHER CENTRAL |
|
|
G |
GUSTS REACHING (KNOTS) (WEATHER REPORTS ONLY) |
GICG |
GLAZE ICING |
GLFALSK |
GULF OF ALASKA |
GLFCAL |
GULF OF CALIFORNIA |
GLFMEX |
GULF OF MEXICO |
GNDFG |
GROUND FOG |
GRAD |
GRADIENT |
GRBNKS |
GRAND BANKS |
GRDL |
GRADUAL |
GRTLKS |
GREAT LAKES |
GSTS |
GUSTS |
GSTY |
GUSTY |
GV |
GROUND VISIBILITY |
|
|
HCVIS |
HIGH CLOUDS VISIBLE |
HDFRZ |
HARD FREEZE |
HDSVLY |
HUDSON VALLEY |
HI |
HIGH |
HIEAT |
HIGHEST TEMPERATURE EQUALED FOR ALL TIME |
HIEFM |
HIGHEST TEMPERATURE EQUALED FOR THE MONTH |
HIESE |
HIGHEST TEMPERATURE EQUALED SO EARLY |
HIESL |
HIGHEST TEMPERATURE EQUALED SO LATE |
HIFOR |
HIGH LEVEL FORECAST |
HITMP |
HIGHEST TEMPERATURE |
HIXAT |
HIGHEST TEMPERATURE EXCEEDED FOR ALL TIME |
HIXFM |
HIGHEST TEMPERATURE EXCEEDED FOR THE MONTH |
HIXSE |
HIGHEST TEMPERATURE EXCEEDED SO EARLY |
HIXSL |
HIGHEST TEMPERATURE EXCEEDED SO LATE |
HLSTO |
HAILSTONES |
HLTP |
HILLTOP |
HLYR |
HAZE LAYER ALOFT |
HURCN |
HURRICANE |
HUREP |
HURRICANE REPORT |
HX |
HIGH INDEX |
|
|
/IC |
ICING (PIREP ONLY) |
ICG |
ICING |
ICGIC |
ICING IN CLOUDS |
ICGICIP |
ICING IN CLOUDS AND PRECIPITATION |
ICGIP |
ICING IN PRECIPITATION |
IMC |
INSTRUMENT METEOROLOGICAL CONDITIONS |
IMDT |
IMMEDIATE |
INLD |
INLAND |
INSTBY |
INSTABILITY |
INTR |
INTERIOR |
INTS |
INTENSE |
INTSFY |
INTENSIFY |
INVRN |
INVERSION |
IOVC |
IN OVERCAST |
IR |
ICE ON RUNWAY |
ISOLD |
ISOLATED (GENERAL) |
|
|
JTSTR |
JET STREAM |
|
|
K |
COLD (AIR MASS) |
KFRST |
KILLING FROST |
KT |
KNOTS (FOLLOWS WIND DIRECTION/SPEED - GENERAL) |
|
|
LABRDR |
LABRADOR |
LCTMP |
LITTLE CHANGE IN TEMPERATURE |
LDG |
LANDING |
LFT |
LIFT |
LGRNG |
LONG RANGE |
LGT |
LIGHT (PIREP) |
LIFR |
LOW IFR (WEATHER REPORTS ONLY) |
LK |
LAKE |
LLWS |
LOW LEVEL WIND SHEAR (PIREP) |
LN |
LINE (GENERAL) |
LOEAT |
LOWEST TEMPERATURE EQUALED FOR ALL TIME |
LOEFM |
LOWEST TEMPERATURE EQUALED FOR THE MONTH |
LOESE |
LOWEST TEMPERATURE EQUALED SO EARLY |
LOESL |
LOWEST TEMPERATURE EQUALED SO LATE |
LOTMP |
LOWEST TEMPERATURE |
LOXAT |
LOWEST TEMPERATURE EXCEEDED FOR ALL TIME |
LOXFM |
LOWEST TEMPERATURE EXCEEDED FOR THE MONTH |
LOXSE |
LOWEST TEMPERATURE EXCEEDED SO EARLY |
LOXSL |
LOWEST TEMPERATURE EXCEEDED SO LATE |
LSR |
LOOSE SNOW ON RUNWAY |
LTG |
LIGHTNING |
LTGCA |
LIGHTNING CLOUD-TO-AIR |
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 CLOUDS |
LTLCG |
LITTLE CHANGE |
LTNG |
LIGHTNING |
LX |
LOW INDEX |
LYR |
LAYER OR LAYERED OR LAYERS |
|
|
M |
MARITIME (AIR MASS) |
|
M IN TEMPERATURE FIELD MEANS "MINUS" OR BELOW ZERO (METAR) |
|
M IN RVR LISTING INDICATES VISIBILITY LESS THAN LOWEST REPORTABLE SENSOR VALUE |
|
M MISSING (WEATHER REPORTS ONLY)
M MOUNTAIN STANDARD TIME (TIME GROUPS ONLY) |
MA |
MAP ANALYSIS |
MAN |
MANITOBA |
MEGG |
MERGING |
METAR |
AVIATION ROUTINE WEATHER REPORT (ICAO) |
MEX |
MEXICO |
MHKVLY |
MOHAWK VALLEY |
MI |
SHALLOW (METAR) |
MIDN |
MIDNIGHT |
MIFG |
PATCHES OF SHALLOW FOG NOT DEEPER THAN TWO METERS (METAR) |
MLTLVL |
MELTING LEVEL |
MMO |
MAIN METEOROLOGICAL OFFICE |
MNLD |
MAINLAND |
MOD |
MODERATE (PIREP) |
MOGR |
MODERATE OR GREATER |
MONTR |
MONITOR |
MOV |
MOVE |
MRGL |
MARGINAL |
MRNG |
MORNING |
MRTM |
MARITIME |
MS |
MINUS |
MSTLY |
MOSTLY |
MSTR |
MOISTURE |
MTN |
MOUNTAIN |
MVFR |
MARGINAL VFR |
MX |
MIXED, ICING TYPE (PIREP) |
MXD |
MIXED |
|
|
NB |
NEW BRUNSWICK |
NCWX |
NO CHANGE IN WEATHER |
NELY |
NORTHEASTERLY (WEATHER REPORTS ONLY) |
NERN |
NORTHEASTERN |
NEW ENG |
NEW ENGLAND |
NFLD |
NEWFOUNDLAND |
NGT |
NIGHT |
NL |
NO LAYERS |
NMBR |
NUMBER |
NNERN |
NORTH-NORTHEASTERN (WEATHER REPORTS ONLY) |
NNEWD |
NORTH-NORTHEASTWARD (WEATHER REPORTS ONLY) |
NNWRN |
NORTH-NORTHWESTERN (WEATHER REPORTS ONLY) |
NNWWD |
NORTHWESTWARD (WEATHER REPORTS ONLY) |
NO |
NOT AVAILABLE (E.G. SLPNO, RVRNO) |
NORPI |
NO PILOT BALLOON OBSERVATION WILL BE FILED. NEXT COLLECTION
UNLESS WEATHER CHANGES SIGNIFICANTLY |
NOSPL |
NO SPECIAL OBSERVATIONS TAKEN (WEATHER REPORTS ONLY) |
NPRS |
NONPERSISTENT |
NS |
NOVA SCOTIA |
NSCSWD |
NO SMALL CRAFT OR STORM WARNING ARE BEING DISPLAYED |
NSW |
NO SIGNIFICANT WEATHER (TAF) |
NVA |
NEGATIVE VORTICITY ADVECTION |
NWLY |
NORTHWESTERLY (WEATHER REPORTS ONLY) |
NWRN |
NORTHWESTERN (WEATHER REPORTS ONLY) |
|
|
OBS |
OBSERVATION |
OBSC |
OBSCURE |
OCFNT |
OCCLUDED FRONT |
OCLD |
OCCLUDE |
OCLN |
OCCLUSION |
OCNL |
OCCASIONAL (GENERAL) |
OFP |
OCCLUDED FRONTAL PASSAGE |
OFSHR |
OFFSHORE |
OMTNS |
OVER MOUNTAINS |
ONSHR |
ON SHORE |
ONT |
ONTARIO |
ORGPHC |
OROGRAPHIC |
OSV |
OCEAN STATION VESSEL |
OTAS |
ON TOP AND SMOOTH |
OTLK |
OUTLOOK |
OTP |
ON TOP (PIREP) |
/OV |
LOCATION (PIREP ONLY) |
OVC |
OVERCAST |
|
|
P |
IN RVR INDICATES VISIBILITY GREATER THAN HIGHEST REPORTABLE SENSOR VALUE E.G. P6000FT |
|
PACIFIC STANDARD TIME (TIME GROUP ONLY) |
|
POLAR (AIR MASS) |
P6SM |
VISIBILITY GREATER THAN 6 SM (TAF ONLY) |
PAC |
PACIFIC |
PBL |
PROBABLE |
PCPN |
PRECIPITATION |
PDMT |
PREDOMINANT |
PDMT |
PREDOMINATE |
PDW |
PRIORITY DELAYED WEATHER |
PEN |
PENINSULA |
PGTSND |
PUGET SOUND |
PIBAL |
PILOT BALLOON OBSERVATION |
PISE |
NO PILOT BALLOON OBSERVATION DUE TO UNFAVORABLE SEA CONDITIONS |
PISO |
NO PILOT BALLOON OBSERVATION DUE TO SNOW |
PIWI |
NO PILOT BALLOON OBSERVATION DUE TO HIGH, OR GUSTY, SURFACE WIND |
PK WND |
PEAK WIND |
PLW |
PLOW (SNOW) |
PNHDL |
PANHANDLE |
PO |
DUST/SAND WHIRLS (METAR) |
PPINA |
RADAR WEATHER REPORTS NOT AVAILABLE |
PPINE |
RADAR WEATHER REPORT NO ECHOES OBSERVED |
PPINO |
RADAR WEATHER REPORT EQUIPMENT INOPEERATIVE DUE TO BREAKSOWN |
PPIOK |
RADAR WEATHER REPORT EQUIPMENT OPERATION RESUMED |
PPIOM |
RADAR WEATHER REPORT EQUIPMENT INOPERATIVE DUE TO MAINTENANCE |
PR |
PARTIAL (METAR) |
PRBLTY |
PROBABILITY |
PRESFR |
PRESSURE FALLING RAPIDLY |
PRESRR |
PRESSURE RISING RAPIDLY |
PRFG |
FOG PARTIAL (METAR) |
PRJMP |
PRESSURE JUMP (WEATHER REPORTS ONLY) |
PROB30 |
SLIGHT CHANCE, PROBABLILITY 30 PERCENT (TAF) |
PROB40 |
PROBABILITY 40 PERCENT (TAF) |
PROG |
PROGNOSIS OR PROGNOSTIC |
PRSNT |
PRESENT |
PS |
PLUS |
PSG PASSAGE |
PSG PASSING |
PSR |
PACKED SNOW ON RUNWAY |
PTCHY |
PATCHY |
PTLY |
PARTLY |
PVA |
POSITIVE VORTICITY ADVECTION |
PWINO |
PRECIPITATION IDENTIFIER INFORMATION NOT AVAILABLE (WEATHER REPORTS ONLY) |
|
|
R |
RUNWAY (USED IN RVR MEASUREMENT) |
RABA |
NO RAWIN OBSERVATION, NO BALLOOS AVAILABLE |
RABAL |
RADIOSONDE BALLOON WIND DATA |
RABAR |
RADIOSONDE BALLOON RELEASE |
RACO |
NO RAWIN OBSERVATION, COMMUNICATIONS OUT |
RADAT |
RADIOSONDE OBSERVATION DATA |
RADNO |
REPORT MISSING ACCOUNT RADIO FAILURE |
RAFI |
RADIOSONDE OBSERVATION NOT FILED |
RAFRZ |
RADIOSONDE OBSERVATION FREEZING LEVELS |
RAHE |
NO RAWIN OBSERVATION, NO GAS AVAILABLE |
RAICG |
RADIOSONDE OBSERVATION ICING AT |
RAOB |
RADIOSONDE OBSERVATION |
RAPI |
RADIOSONDE REPORT ALREADY SENT IN |
PIBAL |
COLLECTION |
RAREP |
RADAR WEATHER REPORT |
RASN |
RAIN AND SNOW (METAR) |
RAVU |
RADIOSONDE ANALYSIS AND VERIFICATION UNIT |
RAWE |
NO RAWIN OBSERVATION, UNFAVORABLE WEATHER |
RAWI |
NO RAWIN OBSERVATION, HIGH AND GUSTY WINDS |
RAWIN |
UPPER WINDS OBSERVATION (BY RADIO METHODS) |
RCD |
RADAR CLOUD DETECTION REPORT |
RCDNA |
RADAR CLOUD DETECTION REPORT NOT AVAILABLE |
RCDNE |
RADAR CLOUD DETECTION REPORT NO ECHOES OBSERVED |
RCDNO |
RADAR CLOUD DECTECTOR INOPERATIVE DUE TO BREAKDOWN UNTIL |
RCDOM |
RADAR CLOUD DETECTOR INOPERATIVE DUE TO MAINTENANCE UNTIL |
RCKY |
ROCKY (MOUNTAINS) |
RDG |
RIDGE |
RDWND |
RADAR DOME WIND |
RESTR |
RESTRICT |
RGD |
RAGGED |
RH |
RELATIVE HUMIDITY |
RHINO |
RADAR ECHO HEIGHT INFORMATION NOT AVAILABLE |
|
RHINO RADAR RANGE HEIGHT INDICATOR NOT OPERATING ON SCAN |
RIOGD |
RIO GRANDE |
/RM |
REMARKS (PIREP) |
RMK |
REMARK |
RNFL |
RAINFALL |
ROBEPS |
RADAR OPERATING BELOW PRESCRIBED STANDARD |
RPD |
RAPID |
RSG |
RISING |
RUF |
ROUGH |
RY/RWY |
RUNWAY |
|
|
SA |
SAND (METAR) |
SASK |
SASKATCHEWAN |
SBSD |
SUBSIDE |
SCT |
SCATTERED |
SELS |
SEVERE LOCAL STORMS |
SELY |
SOUTHEASTERLY (WEATHER REPORTS ONLY) |
SERN |
SOUTHEASTERN (WEATHER REPORTS ONLY) |
SEV |
SEVERE (ICAO) |
SFERICS |
ATMOSPHERICS |
SGD |
SOLAR-GEOPHYSICAL DATA |
SHFT |
SHIFT (WEATHER REPORTS ONLY) |
SHLW |
SHALLOW |
SHRTLY |
SHORTLY |
SIERNEV |
SIERRA NEVADA |
SIR |
SNOW AND ICE ON RUNWAY |
/SK |
SKY CONDITIONS (PIREP ONLY) |
SKC |
SKY CLEAR |
SLD |
SOLID |
SLP |
SEA LEVEL PRESSURE |
SLR |
SLUSH ON RUNWAY |
SLT |
SLEET |
SM |
STATUTE MILE(S) |
SMK |
SMOKE |
SMTH |
SMOOTH |
SNBNK |
SNOWBANK |
SNFLK |
SNOWFLAKE |
SNOINCR |
SNOW DEPTH INCREASE IN PAST HOUR |
SNW |
SNOW |
SNWFL |
SNOWFALL |
SP |
STATION PRESSURE |
SPECI |
SPECIAL REPORT |
SPKL |
SPRINKLE |
SPLNS |
SOUTH PLAINS |
SPRD |
SPREAD |
SQ |
SQUALL (METAR) |
SQAL |
SQUALL |
SQLN |
SQUALL LINE |
SSERN |
SOUTH-SOUTHEASTERN (WEATHER REPORTS ONLY) |
SSEWD |
SOUTH-SOUTHEASTWARD (WEATHER REPORTS ONLY) |
SSWRN |
SOUTH-SOUTHWESTERN (WEATHER REPORTS ONLY) |
SSWWD |
SOUTH-SOUTHWESTWARD (WEATHER REPORTS ONLY) |
STAGN |
STAGNATION |
STG |
STRONG |
STM |
STORM |
STNRY |
STATIONARY |
SWLG |
SWELLING |
SWLY |
SOUTHWESTERLY (WEATHER REPORTS ONLY) |
SWRN |
SOUTHWESTERN (WEATHER REPORTS ONLY) |
SX |
STABILITY INDEX |
SXN |
SECTION |
SYNOP |
SYNOPTIC |
SYNS |
SYNOPSIS |
|
|
T |
TRACE (WEATHER REPORTS ONLY) |
|
TROPICAL (AIR MASS) |
/TA |
AIR TEMPERATURE (PIREP) |
TAF |
AVIATION TERMINAL FORECAST |
/TB |
TURBULENCE (PIREPS ONLY) |
TCU |
TOWERING CUMULUS |
TEMPO |
TEMPORARY CHANGES EXPECTED |
THD |
THUNDERHEAD (NON METAR) |
THDR |
THUNDER (NON METAR) |
THK |
THICK |
THN |
THIN |
TKOF |
TAKEOFF |
/TM |
TIME (PIREP) |
TOP |
CLOUD TOP |
TOVC |
TOP OF OVERCAST |
/TP |
TYPE AIRCRAFT (PIREP ONLY) |
TPG |
TOPPING |
TRIB |
TRIBUTARY |
TROF |
TROUGH |
TROP |
TROPOPAUSE |
TRPCD |
TROPICAL CONTINENTAL (AIR MASS) |
TRPCL |
TROPICAL |
TRPLYR |
TRAPPING LAYER |
TS |
THUNDERSTORM |
TSHWR |
THUNDERSHOWER (NON METAR) |
TSQLS |
THUNDERSQUALLS (NON METAR) |
TSTM |
THUNDERSTORM (NON METAR) |
TURBC |
TURBULENCE |
TURBT |
TURBLENT |
TWRG |
TOWERING |
|
|
UA |
ROUTINE PIREP |
UAG |
UPPER ATMOSPHERE GEOPHYSICS |
UDDF |
UP AND DOWN DRAFTS |
UNSBL |
UNSEASONABLE |
UNSTBL |
UNSTABLE |
UNSTDY |
UNSTEADY |
UNSTL |
UNSETTLE |
UP |
UNKNOWN PRECIPITATION (AUTOMATED OBSERVATIONS) |
UPDFTS |
UPDRAFTS |
UPR |
UPPER |
UPSLP |
UPSLOPE |
UPSTRM |
UPSTREAM |
UUA |
URGENT PIREP |
UVV |
UPWARD VERTICAL VELOCITY |
UWNDS |
UPPER WINDS |
|
|
V |
VARIES (WINDS DIRECTION AND RVR) |
|
VARIABLE (WEATHER REPORTS ONLY) |
VA |
VOLCANIC ASH (METAR) |
VC |
VICINITY |
VCFG |
FOG IN VICINITY (METAR) |
VIS |
VISIBILITY (GENERAL) |
VLCTY |
VELOCITY |
VLNT |
VIOLENT |
VLY |
VALLEY |
VR |
VEER |
VRB |
VARIABLE WIND DIRECTION WHEN SPEED IS LESS THAN OR EQUAL TO 6 KNOTS |
VRISL |
VANCOUVER ISLAND, BC |
VSBY |
VISIBILITY |
VSBYDR |
VISIBILITY DECREASING RAPIDLY |
VSBYIR |
VISIBILITY INCREASING RAPIDLY |
VV |
VERTICAL VISBILITY (INDEFINITE CEILING) |
|
|
W |
WARM (AIR MASS) |
WA |
AIRMET |
WDC-1 |
WORLD DATA CENTERS IN WESTERN EUROPE |
WDC-2 |
WORLD DATA CENTERS THROUGHOUT REST OF WORLD |
WDLY |
WIDELY |
WDSPRD |
WIDESPREAD |
WEA |
SEATHER |
WFP |
WARM FRONT PASSAGE |
WINT |
WINTER |
WND |
WIND |
WNWRN |
WEST-NORTHWESTERN (WEATHER REPORTS ONLY) |
WNWWD |
WEST-NORTHWESTWARD (WEATHER REPORTS ONLY) |
WPLTO |
WESTERN PLATEAU |
WR |
WET RUNWAY |
WRM |
WARM |
WRMFNT |
WARM FRONT |
WRNG |
WARNING |
WS |
WIND SHEAR (IN TAFs, LOW LEVEL AND NOT ASSOCIATED WITH CONVECTIVE ACTIVITY) |
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