MAV Ceiling Height Categories
1 | < 200 feet |
2 | 200 - 400 feet |
3 | 500 - 900 feet |
4 | 1000 - 1900 feet |
5 | 2000 - 3000 feet |
6 | 3100 - 6500 feet |
7 | 6600 - 12,000 feet |
8 | > 12,000 feet or unlimited ceiling |
MAV Visibility (VIS) Categories
1 | < 1/2 miles |
2 | 1/2 - < 1 miles |
3 | 1 - < 2 miles |
4 | 2 - < 3 miles |
5 | 3 - 5 miles |
6 | 6 miles |
7 | > 6 miles |
MAV QPF Categories
0 | no precipitation |
1 | 0.01 to 0.09 inches |
2 | 0.10 to 0.24 inches |
3 | 0.25 to 0.49 inches |
4 | 0.50 to 0.99 inches |
5 | 1.00 to 1.99 inches |
6 | 2.00 inches or greater |
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MAV Cloud (CLD) Categories
CL | clear |
FW | few > 0 to 2 octas |
SC | scattered > 2 to 4 octas |
BK | broken > 4 to < 8 octas |
OV | overcast |
MAV Obstruction to Vision (OBV) Categories
N | none of the following |
HZ | haze, smoke, dust |
BR | mist (fog with visibility >= 5/8 mile) |
FG | fog or ground fog (visibility < 5/8 mile) |
BL | blowing dust, sand, snow |
MAV Snow Fall Amount Categories
0 | no snow or a trace expected |
1 | > a trace to < 2 inches |
2 | 2 to < 4 inches |
4 | 4 to < 6 inches |
6 | 6 to < 8 inches |
8 | >= 8 inches |
MAV Precipitation Type (TYP) Categories
S | pure snow or snow grains |
Z |
freezing rain/drizzle, ice pellets, or |
anything mixed with freezing precip |
R | pure rain/drizzle or rain mixed with snow |
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