| N |
| N |
North or northerly |
| NAT |
North Atlantic |
| NCD |
No Cloud Detected (on AUTO METARs only) |
| NDV |
No Directional Variation (on AUTO METARs
only) |
| NE |
North-east or north-easterly |
| NIL |
None |
| NM |
Nautical miles |
| NNE |
North-north-east or north-north-easterly |
| NNW |
North-north-west or north-north-westerly |
| NOSIG |
No significant change expected |
| NOTAM |
Notice containing important aeronautical
information to all personnel concerned with flight operations |
| NOV |
November |
| NS |
Nimbostratus |
| NSC |
No significant cloud |
| NSW |
No significant weather |
| NW |
North-west or north-westerly |
| O |
| OCNL |
Occasional, occasionally |
| OCT |
October |
| OVC |
Overcast (8 oktas) |
| P |
| P |
Greater than the highest reportable value
(RVR) |
| PL |
Ice pellets |
| PO |
Dust devils |
| PRFG |
Fog banks |
| PROB |
Probability |
| PS |
Plus |
| PSYS |
Pressure System(s) |
| Q |
| QFE |
Atmospheric pressure at specified datum |
| QNE |
Aerodrome height expressed in pressure
altitude |
| QNH |
Altimeter sub-scale setting to obtain
elevation when on the ground |
| R |
| RA |
Rain |
| RMK |
Remarks |
| RVR |
Runway visual range |
| RWY |
Runway |
| S |
| S |
South or southerly |
| SA |
Sand (in suspension) |
| SC |
Stratocumulus |
| SCT |
Scattered (3 or 4 oktas) |
| SE |
South-east or south-easterly |
| SEA |
At sea |
| SEP |
September |
| SEV |
Severe |
| SFC |
Surface |
| SG |
Snow grains |
| SH... |
Shower (followed by RA, SN, PL, GR, GS
or combinations thereof) |
| SIG |
Significant |
| SKC |
Sky clear |
| SN |
Snow (flakes) |
| SPECI |
Aviation special weather report |
| SQ |
Squall |
| SS |
Sandstorm |
| SSE |
South-south-east or south-south-easterly |
| SSW |
South-south-west or south-south-westerly |
| ST |
Stratus |
| STNR |
Stationary |
| SW |
South-west or south-westerly |
| T |
| T |
Temperature |
| TAF |
Terminal aerodrome forecast |
| TCU |
Towering cumulus |
| TEMPO |
Temporary, temporarily |
| TL |
Until |
| TOP |
Cloud top |
| TROP |
Tropopause |
| TS |
Thunderstorm (may also be followed by
RA, SN, PL, GR, GS or combinations thereof) |
| TURB |
Turbulence |
| U |
| U |
Upward (tendency in RVR) |
| UP |
Unidentified Precipitation (on AUTO METARs
only) |
| UTC |
Co-ordinated Universal Time |
| V |
| VA |
Volcanic ash |
| VAL |
In valleys |
| VC... |
In vicinity of aerodrome (followed by
FG, FC, SH, PO, BLDU, BLSA, BLSN) |
| VIS |
Visibility |
| VRB |
Variable |
| VSP |
Vertical speed |
| W |
| W |
West or westerly |
| WAFC |
World Area Forecast Centre |
| WDSPR |
Widespread |
| WNW |
West-north-west or west-north-westerly |
| WRNG |
Warning |
| WS |
Wind shear |
| WSPD |
Wind speed |
| WSW |
West-south-west or west-south-westerly |
| WX |
Weather |
| Z |
| Z |
Co-ordinated Universal Time |
