| Code/Flag Figure |
Description |
Status |
|
0
|
Surface of ground dry (without cracks and no appreciable amount of dust or loose sand)
(without snow or measurable ice cover)
|
Operational
|
|
1
|
Surface of ground moist
(without snow or measurable ice cover)
|
Operational
|
|
2
|
Surface of ground wet (standing water in small or large pools on surface)
(without snow or measurable ice cover)
|
Operational
|
|
3
|
Flooded
(without snow or measurable ice cover)
|
Operational
|
|
4
|
Surface of ground frozen
(without snow or measurable ice cover)
|
Operational
|
|
5
|
Glaze on ground
(without snow or measurable ice cover)
|
Operational
|
|
6
|
Loose dry dust or sand not covering ground completely
(without snow or measurable ice cover)
|
Operational
|
|
7
|
Thin cover of loose dry dust or sand covering ground completely
(without snow or measurable ice cover)
|
Operational
|
|
8
|
Moderate or thick cover of loose dry dust or sand covering ground completely
(without snow or measurable ice cover)
|
Operational
|
|
9
|
Extremely dry with cracks
(without snow or measurable ice cover)
|
Operational
|
|
10
|
Ground predominantly covered by ice
(with snow or measurable ice cover)
|
Operational
|
|
11
|
Compact or wet snow (with or without ice) covering less than one half of the ground
(with snow or measurable ice cover)
|
Operational
|
|
12
|
Compact or wet snow (with or without ice) covering at least one half of the ground but ground not completely covered
(with snow or measurable ice cover)
|
Operational
|
|
13
|
Even layer of compact or wet snow covering ground completely
(with snow or measurable ice cover)
|
Operational
|
|
14
|
Uneven layer of compact or wet snow covering ground completely
(with snow or measurable ice cover)
|
Operational
|
|
15
|
Loose dry snow covering less than one half of the ground
(with snow or measurable ice cover)
|
Operational
|
|
16
|
Loose dry snow covering at least one half of the ground but ground not completely covered
(with snow or measurable ice cover)
|
Operational
|
|
17
|
Even layer of loose dry snow covering ground completely
(with snow or measurable ice cover)
|
Operational
|
|
18
|
Uneven layer of loose dry snow covering ground completely
(with snow or measurable ice cover)
|
Operational
|
|
19
|
Snow covering ground completely; deep drifts
(with snow or measurable ice cover)
|
Operational
|
|
20-30
|
Reserved
|
Operational
|
|
31
|
Missing value
|
Operational
|