4-21-2021 Northwest Avalanche Center Washington Department of Transportation Snoqualmie Pass, Washington 3770' temp above Lake Keechelus MM/DD Hour Temp Temp Temp RH Wind Wind Wind Hour Total 24 Hr Total Press Lysim Lysim Lysim PST F F F % Avg Max Dir Prec. Prec. Snow Snow mb H2O Total deg F 3760' 3770' 3010' 3010' 3760' 3760' 3760' 3010' 3010' 3010' 3010' 3010' 3010' 3010' 3010' ------------------------------------------------------------------------------------------------------ 4 20 200 40 39 32 83 10 13 106 0 0 0 95 1024 .014 .014 32 4 20 300 38 40 32 81 10 13 110 0 0 -0 95 1024 .014 .028 32 4 20 400 38 38 30 86 11 16 113 0 0 0 95 1024 .014 .042 32 4 20 500 37 35 30 86 12 17 112 0 0 -0 95 1024 .014 .056 32 4 20 600 36 39 29 89 12 17 108 0 0 -0 95 1024 .013 .069 32 4 20 700 37 41 32 79 10 13 101 0 0 -0 94 1024 .013 .082 32 4 20 800 37 37 46 48 12 15 109 0 0 -0 94 1024 .012 .094 32 4 20 900 39 40 59 28 12 17 110 0 0 -0 93 1024 .011 .105 32 4 20 1000 42 47 57 27 10 14 116 0 0 -0 92 1023 .01 .115 32 4 20 1100 45 50 56 27 9 13 119 0 0 -0 92 1023 .008 .123 32 4 20 1200 48 53 59 27 7 11 135 0 0 -0 92 1022 .007 .13 32 4 20 1300 50 53 58 27 6 11 130 0 0 -0 92 1022 .01 .14 32 4 20 1400 52 54 62 23 5 11 135 0 0 -0 92 1021 .014 .154 32 4 20 1500 53 55 62 22 4 8 104 0 0 -0 91 1020 .016 .17 32 4 20 1600 54 56 61 27 4 9 -7999 0 0 -0 91 1020 .016 .186 32 4 20 1700 55 56 52 44 2 5 -7999 0 0 -0 92 1020 .017 .203 32 4 20 1800 56 54 47 54 3 9 200 0 0 -0 91 1020 .016 .219 32 4 20 1900 52 50 41 69 7 12 223 0 0 -0 92 1020 .016 .235 32 4 20 2000 49 49 38 80 5 8 231 0 0 -0 92 1020 .015 .25 32 4 20 2100 49 48 37 85 3 6 163 0 0 -0 92 1021 .015 .265 32 4 20 2200 48 47 36 88 4 6 73 0 0 -0 92 1021 .014 .279 32 4 20 2300 47 46 35 90 3 6 45 0 0 -0 92 1020 .014 .293 32 4 21 0 47 45 34 91 6 7 85 0 0 -0 92 1020 .014 .307 32 4 21 100 46 43 33 94 6 7 100 0 0 -0 92 1020 .014 .321 32 Total Lysim Prec. Total 3010' 3010' ------------------------------------------------------------------------------------------------ 0 .321 Page 1