| A |
| 表 記 |
意 味 |
| A |
Preceding 4 Digits Altimeter (METAR) |
| A |
Absolute (Temperature) |
| A |
Alaskan Standard Time (Time Groups Only) |
| A |
Arctic (Air Mass) |
| A01 |
Automated Observation Without
Precipitation Discriminator (Rain/Snow) (METAR) |
| A02 |
Automated Observation With Precipitation Discriminator (Rain/Snow) (METAR) |
| AAWF |
Auxiliary Aviation Weather Facility |
| AC |
Altocumulus |
| ACC |
Altocumulus Castellanus (ICAO) |
| ACCAS |
Altocumulus Castellanus |
| ACSL |
Standing Lenticular Altocumulus |
| ACYC |
Anticyclonic |
| ADRNDCK |
Adirondack |
| ADV |
Advise |
| ADVCTN |
Advection |
| ADVY |
Advisory |
| AFC |
Area Forecast Center |
| AFDK |
After Dark |
| ALF |
Aloft |
| ALGHNY |
Allegheny |
| ALQDS |
All Quadrants |
| ALSEC |
All Sectors |
| ALTA |
Alberta |
| ALUTN |
Aleutian |
| ALWF |
Actual Wind Factor |
| AM |
Ante Meridiem |
| AMD |
Amended Forecast (TAF) |
| AMPLTD |
Amplitude |
| AMS |
Air Mass |
| AMS |
American Meteorological Society |
| ANLYS |
Analysis |
| APLCN |
Appalachian |
| AS |
Altostratus |
| 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 |
| C |
| 表 記 |
意 味 |
| 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 (GEN) |
| CAVOK |
Cloud and Visibility OK (METAR) |
| CAVU |
Clear or Scattered Clouds and Visibility Greater Than Ten Miles |
| CAWS |
Common Aviation Weather Sub-system |
| CB |
Cumulonimbus |
| CBMAM |
Cumulonimbus Mammatus |
| CC |
Cirrocumulus |
| CCLKWS |
Counterclockwise |
| CCSL |
Standing Lenticular Cirrocumulus |
| CDFNT |
Cold Front |
| CFP |
Cold Front Passage |
| CHARC |
Characteristic |
| CHC |
Chance |
| CHSPK |
Chesapeake |
| CI |
Cirrus |
| CIG |
Ceiling |
| CLD |
Cloud |
| CLR |
Clear |
| CLR |
Clear At Or Below 12,000 Feet (AWOS/ASOS Report) (METAR) |
| CLRS |
Clear and Smooth |
| CNCL |
Cancel |
| CNDN |
Canadian |
| CNVTV |
Convective |
| CONFDC |
Confidence |
| CONT |
Continue or Continuously (GEN) |
| CONTDVD |
Continental Divide |
| CONTRAILS |
Condensation Trails |
| COR |
Correction to the Observation (METAR) |
| CS |
Cirrostratus |
| CST |
Coast |
| CTGY |
Category |
| CTSKLS |
Catskills |
| CU |
Cumulus |
| CUFRA |
Cumulus Fractus |
| CYC |
Cyclonic |
| CYCLGN |
Cyclogenesis |
| E |
| 表 記 |
意 味 |
| E |
Eastern Standard Time (Time Groups Only)
|
| E |
Ending of Precipitation (Time in Minutes)(Weather Reports Only) |
| 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 |
| L |
| 表 記 |
意 味 |
| 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 (GEN) |
| 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 |
| 表 記 |
意 味 |
| M |
Maritime (Air Mass) |
| M |
In Temperature Field Means
"Minus" or Below Zero (METAR) |
| M |
In RVR Field, Indicates Visibility Less
Than Lowest Reportable Sensor Value (e.g. M0600FT) |
| 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 |
| N |
| 表 記 |
意 味 |
| 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 |
Nimbostratus |
| 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) |
| P |
| 表 記 |
意 味 |
| P |
Pacific Standard Time (Time Group Only) |
| P |
Polar (Air Mass) |
| P |
In RVR Field, Indicates Visibility Greater Than Highest Reportable Sensor Value (e.g. P6000FT) |
| P6SM |
Visibility Greater Than 6 Statute Miles (TAF Only) |
| PAC |
Pacific |
| PBL |
Probable |
| PCPN |
Precipitation |
| PDMT |
Predominant |
| PDMT |
Predominate |
| PDW |
Priority Delayed Weather |
| PE |
Ice Pellets (METAR) |
| 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 |
| PL |
Ice Pellets (METAR) |
| PLW |
Plow (Snow) |
| PNHDL |
Panhandle |
| PO |
Dust/Sand Whirls (METAR) |
| PPINE |
Radar Weather Report No Echoes Observed |
| PPINA |
Radar Weather Report Not Available (Or Omitted For a Reason Different Than Those Otherwise Stated) |
| PPINO |
Radar Weather Report Equipment Inoperative Due To Breakdown |
| 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, Probability 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) |
| PY |
Spray (METAR) |
| R |
| 表 記 |
意 味 |
| R |
Runway (Used In RVR Measurement) |
| RA |
Rain (METAR) |
| RABA |
No RAWIN Obs., No Balloons Available |
| RABAL |
Radiosonde Balloon Wind Data |
| RABAR |
Radiosonde Balloon Release |
| RACO |
No RAWIN Obs., 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 Obs., 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 obs., Unfavorable Weather |
| RAWI |
No RAWIN Obs., High and Gusty Winds |
| RAWIN |
Upper Winds Obs. (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 Detector Inoperative Due to Breakdown Until |
| RCDOM |
Radar Cloud Detector Inoperative Due to Maintenance Until |
| RCKY |
Rockies (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(s) |
| RNFL |
Rainfall |
| ROBEPS |
Radar Operating Below Prescribed Standard |
| RPD |
Rapid |
| RSG |
Rising |
| RUF |
Rough |
| RY/RWY |
Runway |
| S |
| 表 記 |
意 味 |
| SA |
Sand (METAR) |
| SASK |
Saskatchewan |
| SBSD |
Subside |
| SC |
Stratocumulus |
| SCSL |
Standing Lenticular Stratocumulus |
| SCT |
Scattered |
| SELS |
Severe Local Storms |
| SELY |
Southeasterly (Weather Reports Only) |
| SERN |
Southeastern (Weather Reports Only) |
| SEV |
Severe (ICAO) |
| SFERICS |
Atmospherics |
| SG |
Snow Grains (METAR) |
| SGD |
Solar-Geophysical Data |
| SH |
Showers (METAR) |
| SHFT |
Shift (Weather Reports Only) |
| SHGR |
Hail Showers |
| SHGS |
Small Hail Showers |
| SHLW |
Shallow |
| SHRA |
Rain Showers |
| SHRTLY |
Shortly |
| SHSN |
Snow Showers |
| SHWR |
Shower |
| SIERNEV |
Sierra Nevada |
| SIR |
Snow and Ice on Runway |
| /SK |
Sky Conditions (PIREP Only) |
| SKC |
Sky Clear (METAR) |
| SKC |
Clear |
| SLD |
Solid |
| SLP |
Sea Level Pressure (e.g. 1013.2 Reported as 132) |
| SLR |
Slush on Runway |
| SLT |
Sleet |
| SM |
Statute Mile(s) |
| SMK |
Smoke |
| SMTH |
Smooth |
| SN |
Snow (METAR) |
| SNBNK |
Snowbank |
| SNFLK |
Snowflake |
| SNOINCR |
Snow Depth Increase in Past Hour |
| SNW |
Snow |
| SNWFL |
Snowfall |
| SP |
Station Pressure |
| SPECI |
Special Report (METAR) |
| SPKL |
Sprinkle |
| SPLNS |
South Plains |
| SPRD |
Spread |
| SQ |
Squall (METAR) |
| SQAL |
Squall |
| SQLN |
Squall Line |
| SS |
Sandstorm (METAR) |
| SSERN |
South-southeastern (Weather Reports Only) |
| SSEWD |
South-southeastward (Weather Reports Only) |
| SSWRN |
South-southwestern (Weather Reports Only) |
| SSWWD |
South-southwestward (Weather Reports Only) |
| ST |
Stratus |
| STAGN |
Stagnation |
| STFRA |
Stratus Fractus |
| STFRM |
Stratiform |
| 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 |
| 表 記 |
意 味 |
| T |
Trace (Weather Reports Only) |
| T |
Tropical (Air Mass) |
| /TA |
Air Temperature (PIREP) |
| TAF |
Aviation Terminal Forecast |
| /TB |
Turbulence (PIREPS Only) |
| TCU |
Towering Cumulus |
| TEMPO |
Temporary Changes Expected (Between 2 Digit Beginning Hour and 2 Digit Ending Hour) (TAF) |
| 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 (METAR) |
| TSGR |
Thunderstorm With Hail (METAR) |
| TSGS |
Thunderstorm With Small Hail (METAR) |
| TSHWR |
Thundershower (Non METAR) |
| TSPL |
Thunderstorm With Ice Pellets |
| TSQLS |
Thundersqualls (Non METAR) |
| TSRA |
Thunderstorm With Rain (METAR) |
| TSSA |
Thunderstorm With Duststorm or Sandstorm (METAR) |
| TSSN |
Thunderstorm With Snow (METAR) |
| TSTM |
Thunderstorm (Non METAR) |
| TURBC |
Turbulence |
| TURBT |
Turbulent |
| TWRG |
Towering |
| W |
| 表 記 |
意 味 |
| 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 |
Weather |
| 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) |
| WS |
SIGMET |
| WSHFT |
Wind Shift |
| WSOM |
Weather Service Operations Manual |
| WSR |
Wet Snow on Runway |
| WSTCH |
Watch Range |
| WSWRN |
West-southwestern (Weather Reports Only) |
| WSWWD |
West-southwestward (Weather Reports Only) |
| WTR |
Water |
| WTSPT |
Waterspout |
| WV |
Wave |
| /WV |
Wind at Altitude Only (PIREP Only) |
| WW |
Severe Weather Forecast |
| /WX |
Flight visibility and Flight Weather (PIREP) |
| WXCON |
Weather Reconnaissance Flight Pilot Report |
