Character of obscuration In suspension in the air 9 020026 2014-09-03T09:54:47.429Z Shallow 1 020026 Dense 11 020026 No change 0 020026 Wall 10 020026 Decreasing 8 020026 Missing value 15 020026 Increasing 7 020026 Blowing 6 020026 Drifting and blowing 13 020026 Low drifting 5 020026 Freezing 4 020026 Whiteout 12 020026 Partial 3 020026 1 Patches 2 020026