10 0 NO CHANGE 21 1 SHALLOW 32 2 PATCHES 43 3 PARTIAL 54 4 FREEZING 65 5 LOW DRIFTING 76 6 BLOWING 87 7 INCREASING 98 8 DECREASING 109 9 IN SUSPENSION IN THE AIR 1110 10 WALL 1211 11 DENSE 1312 12 WHITEOUT 1415 15 MISSING VALUE 15