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| Code | Meaning |
Code | Meaning |
| // |
Weather is clear or current weather is not detectable |
METAR |
Aerodrome routine meteorological report |
| /// |
No cumulonimbus or towering cumulus clouds |
MI |
Shallow |
| − |
Light |
MOD |
Moderate |
|
Moderate |
MOV |
Moving |
| + |
Heavy |
MS |
Minus |
| 9999 |
Visibility 10 km or greater |
MTW |
Mountain waves |
| ABT |
About |
NC |
No changes |
| AC |
Altocumulus |
NCD |
No cloud detected (for METAR AUTO) |
| AGL |
Above ground level |
NDV |
No directional variation available (for METAR AUTO) |
| AIP |
Aeronautical information package |
NOSIG |
No significant change |
| AIREP |
Air report from aircraft in flight |
NOTAM |
Notice to airmen |
| AMD |
Amended |
NS |
Nimbostratus |
| AMSL |
Above mean sea level |
NSC |
No significant cloud |
| ARFOR |
Area forecast |
NSW |
No significant weather |
| AS |
Altostratus |
OBSC |
Obscured |
| ATIS |
Automatic terminal information service |
OCNL |
Occasional |
| ATS |
Air traffic service |
OVC |
Overcast (8 oktas) |
| AUTO |
Automatic aerodrome meteorological report |
PIREP |
Pilot report |
| AWIB |
Automatic weather information service |
PL |
Ice pellets |
| AWS |
Automatic weather station |
PO |
Dust devils |
| BC |
Patches |
PR |
Partial |
| BECMG |
Becoming |
PROB |
Probability |
| BKN |
Broken (5—7 oktas) |
PROV |
Provisional |
| BL |
Blowing |
PS |
Plus |
| BR |
Mist |
QNH |
Pressure at sea level |
| BWR |
Basic weather report |
RA |
Rain |
| CAT |
Clear air turbulence |
RE |
Recent |
| CAVOK |
Ceiling and visibility are OK |
RMK |
Remrak |
| CB |
Cumulonimbus |
RVR |
Runway visibility range |
| CLD |
Cloud |
SA |
Sand |
| CNL |
Cancelled |
SC |
Stratocumulus |
| COR |
Corrected |
SCT |
Scattered (3—4 oktas) |
| CU |
Cumulus |
SEV |
Severe |
| DP |
Dew point |
SG |
Snow grains |
| DR |
Drifting |
SH |
Shower |
| DS |
Dust storm |
SIG |
Significant |
| DU |
Dust |
SIGMET |
Significnat meteorological information |
| DZ |
Drizzle |
SKC |
Sky clear |
| EMBD |
Embedded |
SN |
Snow |
| FC |
Funnel cloud |
SPECI |
Special meteorological report |
| FCST |
Forecast |
SQ |
Squall |
| FEW |
Few (1—2 oktas) |
SS |
Sandstorm |
| FG |
Fog |
ST |
Status |
| FIR |
Flight information region |
STNR |
Stationary |
| FL |
Flight level |
SURF |
Surface |
| FM |
From |
T |
Temperature |
| FRQ |
Frequent |
TAF |
Aerodrome forecast |
| FU |
Smoke |
TC |
Tropical cyclone |
| FZ |
Freezing |
TCU |
Towering cumulus |
| FZL |
Freezing level |
TEMPO |
Temporary |
| G |
Gusts |
TL |
Till |
| GOOD |
Visibility greater than 10 km |
TREND |
Trend forecast |
| GR |
Hail (5 mm and more) |
TS |
Thunderstorm |
| GS |
Hail (small than 5 mm) |
TURB |
Trubulence |
| HVY |
Heavy |
UTC |
Coordinated universal time |
| HZ |
Haze |
V |
Variations from mean wind direction |
| IC |
Ice crystals |
VA |
Volcanic ash |
| ICE |
Icing |
VC |
Vicinity of aerodrome |
| IFR |
Instrument flight rules |
VFR |
Visual flight rules |
| IMC |
Instrument meteorological conditions |
VMC |
Visual meteorological conditions |
| INC |
In clouds |
VRB |
Variable |
| INTER |
Intermittently (less than 30 minutes) |
WDSPR |
Widespread |
| INTSF |
Intensify |
WKN |
Weakening |
| ISOL |
Isolated |
WS |
Windshear |
| LSQ |
Line squall |
WX |
Weather |
| LYR |
Layer |
Z |
Coordinated universal time |
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