MAV/MET Cloud Amount (CLD) Categories
(Modified 5/18/2004)
| CL | clear |
| FW | > 0/8 to 2/8 of total sky covered |
| SC | > 2/8 to 4/8 of total sky covered |
| BK | > 4/8 to < 8/8 of total sky covered |
| OV | 8/8 of total sky covered |
MAV/MET Ceiling Height (CIG) Categories|
(Modified 5/18/2004)
| 1 | less than 200 ft |
| 2 | 200 to 400 ft |
| 3 | 500 to 900 ft |
| 4 | 1000 to 1900 ft |
| 5 | 2000 to 3000 ft |
| 6 | 3100 to 6500 ft |
| 7 | 6600 to 12000 ft |
| 8 | greater than 12000 ft or unlimited |
MAV/MET Visibility (VIS) Categories|
(Modified 5/18/2004)
| 1 | less than 1/2 mile |
| 2 | 1/2 to < 1 mile |
| 3 | 1 to < 2 miles |
| 4 | 2 to < 3 miles |
| 5 | 3 to 5 miles |
| 6 | 6 miles |
| 7 | greater than 6 miles |
MAV/MET Obstruction to Vision (OBV) Categories|
| N | none of the following |
| HZ | haze, smoke, dust |
| BR | mist (fog w/vis >= 5/8 mile) |
| FG | fog or ground fog (vis < 5/8 mile) |
| BL | blowing dust, sand, snow |
MAV Precipitation Type (TYP) Categories|
| Z | freezing rain/drizzle, ice pellets, or | | anything mixed with freezing precip |
| S | pure snow or snow grains |
| R | pure rain/drizzle or rain mixed with snow |
|
MEX 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 |
MEX Cloud (CLD) Categories|
| CL | mostly clear
|
| PC | partly cloudy |
| OV | mostly cloudy |
MEX Precipitation Type (TYP) Categories|
| Z | freezing rain/drizzle, ice pellets, or | | anything mixed with freezing precip |
| S | pure snow or snow grains |
| RS | rain/drizzle and snow mixed |
| R | pure rain/drizzle |
|