TAF wind and visibility groups
TAF groups:
- Wind group: forecast wind
- Visibility group: forecast prevailing visibility
TAF CYYZ 051130Z 0512/0612 24012KT P6SM FEW040 FM051700 27015G25KT 3SM -SHRA BKN020
Wind:
| Code | Meaning |
|---|---|
24012KT |
From 240° true, 12 kt (speed rounded to nearest whole kt) |
G + value |
Forecast gust peak |
00000KT |
Calm |
36020KT |
North wind, 20 kt |
VRB |
Normally only 3 kt or less; higher speed if no single direction can be forecast |
- METAR gust test (MET 8.1) does not apply.
Visibility:
| Code | Meaning |
|---|---|
P6SM |
P = "plus": greater than 6 SM |
3SM |
Exactly 3 SM |
- Below 3 SM: fractions, then whole miles up to 6 SM.
Trap: reading P6SM as exactly 6 SM.
References
- TC AIM MET 7.3
- TC AIM MET 8.1
- TC AIM MET 8.4