4-20-2021 Northwest Avalanche Center Hurricane Ridge, Olympic National Park, Washington MM/DD Hour Temp RH Wind Wind Wind Wind Hour Total Total PST F % Min Avg Max Dir Prec. Prec. Snow 5250' 5250' 5250' 5250' 5250' 5250' 5250' 5250' 5250' ------------------------------------------------------------------ 4 19 500 43 60 -0 0 0 304 0 0 107 4 19 600 44 54 -0 0 4 74 0 0 106 4 19 700 45 59 0 4 8 126 0 0 106 4 19 800 51 46 -0 4 8 146 0 0 106 4 19 900 48 55 -0 0 4 123 0 0 106 4 19 1000 51 52 -0 0 4 147 0 0 105 4 19 1100 52 52 -0 0 3 107 0 0 105 4 19 1200 53 54 -0 0 0 55 0 0 104 4 19 1300 50 58 -0 0 4 50 0 0 105 4 19 1400 50 60 -0 2 4 54 0 0 104 4 19 1500 48 63 -0 2 5 42 0 0 105 4 19 1600 47 59 -0 1 4 43 0 0 105 4 19 1700 45 67 -0 1 5 46 0 0 105 4 19 1800 44 59 -0 0 2 43 0 0 104 4 19 1900 42 33 -0 0 4 51 0 0 104 4 19 2000 42 17 -0 0 2 53 0 0 104 4 19 2100 42 37 -0 0 0 55 0 0 104 4 19 2200 42 42 -0 0 2 69 0 0 104 4 19 2300 42 43 -0 0 0 83 0 0 104 4 20 0 41 44 -0 0 0 58 0 0 104 4 20 100 41 44 -0 1 3 52 0 0 104 4 20 200 40 46 1 4 7 51 0 0 104 4 20 300 39 53 2 4 8 50 0 0 104 4 20 400 38 56 -0 2 5 53 0 0 104 Total Prec. 5250' ------------------------------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Mt Baker Ski Area, Washington Wind gages unheated and may rime MM/DD Hour Temp Temp RH RH Wind Wind Wind Wind Hour Total 24 Hr Total PST F F % % Min Avg Max Dir Prec. Prec. Snow Snow 5020' 4210' 5020' 4210' 5020' 5020' 5020' 5020' 4210' 4210' 4210' 4210' ------------------------------------------------------------------------------------ 4 19 500 38 41 36 35 8 15 26 85 0 0 0 184 4 19 600 38 41 34 32 5 9 16 81 0 0 -0 184 4 19 700 40 43 25 27 3 7 14 57 0 0 -0 184 4 19 800 41 44 24 23 4 9 22 82 0 0 -0 184 4 19 900 44 46 19 22 0 4 11 78 0 0 -0 183 4 19 1000 47 46 20 23 0 0 6 89 0 0 -0 182 4 19 1100 46 49 20 19 0 2 6 141 0 0 -0 182 4 19 1200 48 51 20 19 0 3 11 191 0 0 -0 181 4 19 1300 49 53 19 20 0 5 10 194 0 0 -0 181 4 19 1400 50 54 19 19 0 4 12 203 0 0 -0 181 4 19 1500 51 53 20 21 1 5 11 197 0 0 -0 181 4 19 1600 52 53 20 22 0 5 10 204 0 0 -0 181 4 19 1700 51 49 24 32 0 3 8 250 0 0 -0 181 4 19 1800 50 46 30 41 0 1 5 293 0 0 -0 182 4 19 1900 45 44 35 43 0 0 4 107 0 0 -0 182 4 19 2000 44 43 35 41 0 0 6 96 0 0 -0 182 4 19 2100 44 41 34 45 0 0 3 72 0 0 -0 182 4 19 2200 44 41 33 45 0 0 1 73 0 0 -0 182 4 19 2300 44 41 32 44 0 0 0 70 0 0 -0 182 4 20 0 44 41 37 43 0 0 2 117 0 0 -0 182 4 20 100 44 41 32 47 0 3 6 195 0 0 -0 182 4 20 200 43 41 40 47 2 4 6 190 0 0 -0 182 4 20 300 43 41 42 50 2 4 7 197 0 0 0 182 4 20 400 42 40 45 51 6 7 9 200 0 0 -0 182 Total Prec. 4210' ------------------------------------------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Washington Department of Transportation Washington Pass, Washington Wind gages unheated and may rime Precipitation gage may measure condensation MM/DD Hour Temp Temp RH RH Wind Wind Wind Equip Hour Total Total PST F F % % Avg Max Dir Temp Prec. Prec. Snow 6680' 5450' 6680' 5450' 6680' 6680' 6680' 5450' 5450' 5450' 5450' ------------------------------------------------------------------------------ 4 19 500 29 26 51 69 5 12 3 56 0 0 84 4 19 600 31 25 46 72 0 3 227 57 0 0 84 4 19 700 33 27 49 66 5 10 41 58 0 0 84 4 19 800 32 33 51 53 6 9 20 62 0 0 82 4 19 900 33 37 55 43 3 8 46 63 0 0 82 4 19 1000 34 39 50 37 6 10 41 70 0 0 81 4 19 1100 36 43 52 33 7 12 38 81 0 0 82 4 19 1200 37 45 46 32 5 10 29 83 0 0 81 4 19 1300 40 47 39 29 6 13 46 89 0 0 81 4 19 1400 40 47 43 27 5 8 45 89 0 0 80 4 19 1500 43 47 40 31 3 7 68 94 0 0 80 4 19 1600 42 47 42 31 6 9 236 89 0 0 80 4 19 1700 42 45 40 31 6 8 216 77 0 0 80 4 19 1800 42 41 35 38 4 7 216 71 0 0 81 4 19 1900 36 33 48 64 0 2 270 66 0 0 81 4 19 2000 35 30 53 73 1 5 350 60 0 0 81 4 19 2100 33 30 62 74 3 7 32 58 0 0 82 4 19 2200 31 29 65 76 3 6 23 59 0 0 81 4 19 2300 32 27 63 79 2 5 12 57 0 0 82 4 20 0 32 26 63 79 0 2 310 55 0 0 82 4 20 100 32 25 63 83 0 4 149 56 0 0 82 4 20 200 31 24 63 84 0 3 202 54 0 0 82 4 20 300 30 24 62 85 1 3 230 55 0 0 82 4 20 400 28 23 67 85 0 2 47 53 0 0 82 Total Prec. 5450' ------------------------------------------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Freestone Inn, Mazama, Washington Wind gages unheated and may rime MM/DD Hour Temp RH Solar Wind Wind Wind Hour Total 24 Hr Total PST F % W/m2 Avg Max Dir Prec. Prec. Snow Snow 2170' 2170' 2170' 2170' 2170' 2170' 2170' 2170' 2170' 2170' ------------------------------------------------------------------------ 4 19 500 42 49 1 1 5 284 0 0 0 -0 4 19 600 37 67 14 0 4 275 0 0 0 -0 4 19 700 41 61 35 0 3 57 0 0 0 -0 4 19 800 47 39 95 2 5 65 0 0 0 -0 4 19 900 53 30 142 0 6 127 0 0 0 -0 4 19 1000 55 25 149 2 6 135 0 0 0 -0 4 19 1100 58 23 64 1 6 152 0 0 0 -0 4 19 1200 60 20 923 2 6 155 0 0 0 -0 4 19 1300 60 21 905 2 5 159 0 0 -0 -1 4 19 1400 62 21 831 2 5 146 0 0 -0 -1 4 19 1500 62 22 701 2 5 156 0 0 0 -0 4 19 1600 61 23 52 2 5 155 0 0 0 -0 4 19 1700 60 24 62 2 5 164 0 0 0 -0 4 19 1800 56 29 10 0 3 142 0 0 0 -0 4 19 1900 49 49 2 0 0 221 0 0 0 -0 4 19 2000 44 59 0 0 0 238 0 0 0 -0 4 19 2100 42 62 0 0 3 266 0 0 0 -0 4 19 2200 43 56 0 1 4 285 0 0 0 -0 4 19 2300 39 64 0 1 4 294 0 0 0 -0 4 20 0 36 75 0 0 4 329 0 0 0 -0 4 20 100 34 82 0 0 0 23 0 0 0 -0 4 20 200 32 85 0 0 0 290 0 0 0 -0 4 20 300 30 88 0 0 0 296 0 0 0 -0 4 20 400 29 90 0 0 0 270 0 0 0 -0 Total Prec. 2170' ------------------------------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Tye Mill and Skyline, Stevens Pass Ski Area, Washington Wind gages unheated and may rime MM/DD Hour Temp Temp Wind Wind Wind Wind PST F F Min Avg Max Dir 5180' 5250' 5180' 5180' 5180' 5180' ------------------------------------------------ 4 19 500 36 38 4 7 11 104 4 19 600 39 38 3 6 10 104 4 19 700 40 39 3 6 10 97 4 19 800 42 37 2 5 10 101 4 19 900 42 37 0 6 12 93 4 19 1000 44 38 0 5 11 92 4 19 1100 43 40 0 4 11 71 4 19 1200 45 41 0 4 10 52 4 19 1300 47 42 0 4 9 57 4 19 1400 47 43 0 3 9 38 4 19 1500 48 43 0 3 8 46 4 19 1600 48 44 0 2 6 46 4 19 1700 49 44 0 2 4 71 4 19 1800 46 42 2 4 8 84 4 19 1900 42 42 3 5 7 94 4 19 2000 38 40 5 7 9 104 4 19 2100 38 41 2 6 9 108 4 19 2200 36 38 1 4 7 101 4 19 2300 35 38 5 8 11 104 4 20 0 33 38 4 8 11 105 4 20 100 33 38 2 6 7 110 4 20 200 33 37 4 6 8 113 4 20 300 33 37 5 7 9 102 4 20 400 31 34 4 6 9 101 Page 1 4-20-2021 Northwest Avalanche Center Washington Department of Transportation Schmidt Haus, Stevens Pass, Washington MM/DD Hour Temp RH Hour Total 24 Hr Total Press PST F % Prec. Prec. Snow Snow mb 3950' 3950' 3950' 3950' 3950' 3950' 3950' ------------------------------------------------------ 4 19 500 35 84 0 0 0 111 1022 4 19 600 35 83 0 0 0 111 1023 4 19 700 35 78 0 0 0 111 1023 4 19 800 37 71 0 0 0 111 1023 4 19 900 40 64 0 0 0 111 1024 4 19 1000 42 59 0 0 0 111 1024 4 19 1100 45 53 0 0 0 109 1024 4 19 1200 47 49 0 0 0 109 1024 4 19 1300 48 45 0 0 0 109 1023 4 19 1400 49 44 0 0 0 109 1023 4 19 1500 49 44 0 0 0 109 1023 4 19 1600 47 48 0 0 0 110 1023 4 19 1700 47 48 0 0 0 110 1022 4 19 1800 43 58 0 0 0 110 1022 4 19 1900 38 72 0 0 0 110 1022 4 19 2000 37 74 0 0 0 110 1022 4 19 2100 36 75 0 0 0 110 1022 4 19 2200 35 75 0 0 0 110 1022 4 19 2300 35 76 0 0 0 110 1022 4 20 0 34 75 0 0 0 110 1022 4 20 100 33 76 0 0 0 110 1022 4 20 200 34 76 0 0 0 110 1022 4 20 300 33 77 0 0 0 110 1022 4 20 400 32 76 0 0 0 110 1022 Total Prec. 3950' ------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Brooks Chair, Stevens Pass Ski Area, Washington MM/DD Hour Temp RH Hour Total 24 Hr Total PST F % Prec. Prec. Snow Snow 4800' 4800' 4800' 4800' 4800' 4800' ------------------------------------------------ 4 19 500 37 70 0 0 0 129 4 19 600 37 68 0 0 0 129 4 19 700 38 59 0 0 -0 129 4 19 800 39 56 0 0 -68 129 4 19 900 40 54 0 0 32 129 4 19 1000 40 55 0 0 39 128 4 19 1100 42 51 0 0 49 128 4 19 1200 43 49 0 0 73 262 4 19 1300 45 44 0 0 75 262 4 19 1400 46 40 0 0 73 262 4 19 1500 45 42 0 0 73 263 4 19 1600 46 40 0 0 69 263 4 19 1700 45 41 0 0 64 265 4 19 1800 44 42 0 0 58 263 4 19 1900 39 55 0 0 57 265 4 19 2000 41 45 0 0 60 265 4 19 2100 38 49 0 0 58 265 4 19 2200 37 51 0 0 54 263 4 19 2300 37 45 0 0 57 266 4 20 0 36 43 0 0 59 265 4 20 100 37 40 0 0 53 265 4 20 200 36 44 0 0 53 264 4 20 300 36 40 0 0 53 263 4 20 400 33 45 0 0 53 263 Total Prec. 4800' ------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Washington Department of Transportation Grace Lakes, Stevens Pass, Washington Wind gages unheated and may rime MM/DD Hour Temp RH Wind Wind Wind Total Shot PST F % Avg Max Dir Snow Snow 4790' 4790' 4590' 4590' 4590' 4790' 4790' ------------------------------------------------------ 4 19 500 37 71 9 14 163 147 0 4 19 600 36 71 9 14 163 147 0 4 19 700 38 61 10 16 159 147 0 4 19 800 39 56 9 18 140 147 0 4 19 900 43 51 11 20 131 147 0 4 19 1000 45 48 10 18 134 146 0 4 19 1100 45 45 9 16 133 146 0 4 19 1200 47 42 9 15 132 146 0 4 19 1300 48 40 9 15 125 146 0 4 19 1400 49 39 8 15 129 145 0 4 19 1500 49 38 7 14 128 145 0 4 19 1600 47 38 4 10 133 145 0 4 19 1700 45 41 6 13 154 145 0 4 19 1800 43 46 8 13 166 145 0 4 19 1900 39 52 10 15 166 145 0 4 19 2000 39 50 6 12 176 145 0 4 19 2100 38 50 4 9 175 145 0 4 19 2200 37 50 8 15 173 145 0 4 19 2300 36 49 9 14 170 145 0 4 20 0 35 49 9 14 168 145 0 4 20 100 35 50 8 13 176 145 0 4 20 200 35 44 7 11 172 145 0 4 20 300 34 44 8 12 173 145 0 4 20 400 33 46 10 16 164 145 0 Page 1 4-20-2021 Northwest Avalanche Center Washington Department of Transportation Berne Snow Camp (8 miles east of Stevens Pass), Washington MM/DD Hour Temp RH Hour Total 24 Hr Total Press PST F % Prec. Prec. Snow Snow mb 2700' 2700' 2700' 2700' 2700' 2700' 2700' ------------------------------------------------------ 4 19 500 33 87 0 0 0 1 1022 4 19 600 33 88 0 0 0 1 1023 4 19 700 46 46 0 0 0 1 1023 4 19 800 48 44 0 0 -0 0 1024 4 19 900 49 41 0 0 -0 0 1024 4 19 1000 52 37 0 0 -0 0 1024 4 19 1100 53 36 0 0 -0 0 1024 4 19 1200 55 32 0 0 -0 0 1023 4 19 1300 56 29 0 0 0 0 1023 4 19 1400 56 29 0 0 -0 0 1022 4 19 1500 57 30 0 0 0 0 1022 4 19 1600 56 29 0 0 -0 0 1021 4 19 1700 54 34 0 0 0 1 1021 4 19 1800 48 55 0 0 -0 0 1021 4 19 1900 43 66 0 0 -0 1 1021 4 19 2000 39 71 0 0 0 1 1022 4 19 2100 37 76 0 0 0 1 1022 4 19 2200 35 79 0 0 0 1 1022 4 19 2300 34 83 0 0 0 1 1022 4 20 0 32 84 0 0 0 1 1022 4 20 100 31 85 0 0 -0 1 1022 4 20 200 30 87 0 0 0 1 1022 4 20 300 30 88 0 0 0 1 1022 4 20 400 29 89 0 0 -0 1 1022 Total Prec. 2700' ------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Dirty Face Mountain, Washington Wind gages unheated and may rime MM/DD Hour Temp RH Wind Wind Wind Wind PST F % Min Avg Max Dir 5980' 5980' 5980' 5980' 5980' 5980' ------------------------------------------------ 4 19 500 31 71 10 18 24 140 4 19 600 29 75 11 19 27 135 4 19 700 29 78 13 19 22 112 4 19 800 29 81 13 18 23 114 4 19 900 32 71 4 10 18 138 4 19 1000 33 68 4 8 12 146 4 19 1100 33 64 4 8 13 144 4 19 1200 35 63 2 6 14 148 4 19 1300 39 54 2 6 11 138 4 19 1400 39 53 2 6 14 135 4 19 1500 40 50 2 5 10 151 4 19 1600 40 44 0 5 9 149 4 19 1700 41 42 2 4 8 144 4 19 1800 38 43 3 6 9 109 4 19 1900 36 41 4 6 10 86 4 19 2000 35 38 7 12 15 97 4 19 2100 34 39 11 15 18 120 4 19 2200 34 37 14 17 19 121 4 19 2300 33 37 14 16 19 117 4 20 0 32 36 15 17 21 122 4 20 100 31 35 11 15 18 119 4 20 200 31 36 11 15 19 108 4 20 300 31 40 10 12 14 99 4 20 400 29 50 10 13 16 115 Page 1 4-20-2021 Northwest Avalanche Center Lake Wenatchee State Park, Washington Wind gages unheated and may rime MM/DD Hour Temp RH Wind Wind Wind Wind Hour Total 24 Hr Total PST F % Min Avg Max Dir Prec. Prec. Snow Snow 1930' 1930' 1930' 1930' 1930' 1930' 1930' 1930' 1930' 1930' ------------------------------------------------------------------------ 4 19 500 34 92 0 0 1 50 0 0 0 -0 4 19 600 34 93 0 0 0 72 0 0 0 -0 4 19 700 40 86 0 0 0 72 0 0 0 -0 4 19 800 50 47 0 0 2 86 0 0 0 -0 4 19 900 54 41 0 0 3 177 0 0 1 -0 4 19 1000 56 34 0 1 5 189 0 0 0 -0 4 19 1100 56 32 0 1 5 169 0 0 0 -0 4 19 1200 58 29 0 2 4 202 0 0 0 -0 4 19 1300 59 28 0 1 5 115 0 0 0 -0 4 19 1400 60 27 0 2 5 57 0 0 0 -0 4 19 1500 60 25 0 2 4 77 0 0 0 -0 4 19 1600 61 23 0 0 3 139 0 0 0 -0 4 19 1700 60 27 0 0 3 157 0 0 0 -0 4 19 1800 56 37 0 0 3 133 0 0 0 -0 4 19 1900 50 56 0 0 0 69 0 0 0 -0 4 19 2000 45 68 0 0 0 60 0 0 0 -0 4 19 2100 42 73 0 0 0 60 0 0 0 -0 4 19 2200 39 77 0 0 0 61 0 0 0 -0 4 19 2300 36 84 0 0 0 61 0 0 0 -0 4 20 0 34 88 0 0 0 61 0 0 0 -0 4 20 100 32 91 0 0 0 61 0 0 0 -0 4 20 200 30 93 0 0 0 61 0 0 0 -0 4 20 300 29 94 0 0 0 61 0 0 0 -0 4 20 400 28 94 0 0 0 61 0 0 0 -0 Total Prec. 1930' ------------------------------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Washington Department of Transportation Tumwater Mountain and Leavenworth, Washington Wind gages unheated and may rime MM/DD Hour Temp Temp RH RH Wind Wind Wind Hour Total 24 hr Total Total PST F F % % Avg Max Dir Prec. Prec. Snow Snow Snow 4180' 1190' 4180' 1190' 4180' 4180' 4180' 1190' 1190 1190' 1190' 4180' ------------------------------------------------------------------------------------ 4 19 500 39 44 55 69 6 14 158 0 0 0 0 2 4 19 600 37 48 59 50 9 16 143 0 0 0 0 3 4 19 700 38 52 59 41 9 19 140 0 0 0 -0 3 4 19 800 39 53 54 36 7 15 142 0 0 0 -0 2 4 19 900 41 55 47 31 4 14 159 0 0 0 -0 3 4 19 1000 41 56 46 29 4 15 154 0 0 0 -0 3 4 19 1100 43 57 43 27 3 9 169 0 0 0 -0 2 4 19 1200 47 60 38 26 2 8 176 0 0 0 -0 3 4 19 1300 48 61 37 24 3 10 141 0 0 0 -0 2 4 19 1400 47 62 35 22 3 9 143 0 0 0 -0 2 4 19 1500 48 63 32 19 3 9 138 0 0 0 -0 2 4 19 1600 49 63 29 18 2 11 133 0 0 0 -0 2 4 19 1700 50 63 27 21 2 17 127 0 0 0 -0 2 4 19 1800 48 57 29 32 3 8 242 0 0 0 0 3 4 19 1900 44 54 28 39 4 10 196 0 0 0 0 4 4 19 2000 43 51 28 44 7 12 147 0 0 0 0 3 4 19 2100 42 47 28 50 8 13 145 0 0 0 0 4 4 19 2200 41 45 28 55 7 15 144 0 0 0 0 2 4 19 2300 41 42 27 59 4 10 157 0 0 0 0 3 4 20 0 41 41 27 61 4 8 146 0 0 0 0 4 4 20 100 41 41 25 61 3 8 156 0 0 0 0 3 4 20 200 40 40 28 64 4 7 146 0 0 0 0 3 4 20 300 37 38 37 71 3 8 154 0 0 0 0 4 4 20 400 36 36 40 75 3 6 182 0 0 0 0 4 Total Prec. 1190 ------------------------------------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Washington Department of Transportation Mt Washington (about 6 miles SE of North Bend), Washington Wind direction unheated and may rime MM/DD Hour Batt Temp Wind Solar PST Volt Deg F Dir W/m2 4340' 4340' 4340' 4340' ------------------------------------------------ 4 19 500 12.7 44 116 0 4 19 600 12.7 43 138 5 4 19 700 12.7 43 121 9 4 19 800 12.8 44 78 10 4 19 900 13.4 45 91 10 4 19 1000 13.7 47 130 10 4 19 1100 13.6 49 140 10 4 19 1200 13.4 51 172 10 4 19 1300 13.1 51 163 10 4 19 1400 13.0 52 164 10 4 19 1500 13.1 53 154 10 4 19 1600 13.3 55 159 10 4 19 1700 13.6 52 152 10 4 19 1800 14.2 50 142 11 4 19 1900 13.3 48 184 8 4 19 2000 12.9 46 190 0 4 19 2100 12.8 45 175 0 4 19 2200 12.8 45 185 0 4 19 2300 12.8 45 183 0 4 20 0 12.7 45 117 0 4 20 100 12.7 45 63 0 4 20 200 12.7 42 182 0 4 20 300 12.7 42 194 0 4 20 400 12.7 42 191 0 Page 1 4-20-2021 Northwest Avalanche Center Alpental Ski Area, Washington Wind gages unheated and may rime MM/DD Hour Temp Temp Temp RH RH Wind Wind Wind Hour Total 24 Hr Total 24 Hr Total Inter PST F F F % % Avg Max Dir Prec. Prec. Snow Snow Snow Snow Snow 5470' 4350' 3100' 3100' 5470' 5520' 5520' 5520' 3100' 3100' 3100' 3100' 4350' 4350' 5470' ------------------------------------------------------------------------------------------------------ 4 19 500 36 36 35 87 67 10 15 137 0 0 1 116 0 177 1 4 19 600 34 35 35 88 73 10 22 122 0 0 1 116 0 177 1 4 19 700 32 34 37 84 78 13 21 119 0 0 1 116 0 177 0 4 19 800 34 36 38 80 72 8 16 132 0 0 1 116 0 177 0 4 19 900 35 38 46 55 67 7 17 126 0 0 1 116 0 177 0 4 19 1000 37 40 48 48 61 5 10 162 0 0 1 116 0 177 2 4 19 1100 38 42 52 42 58 5 11 182 0 0 1 115 28 177 2 4 19 1200 40 43 54 40 55 6 12 181 0 0 1 115 0 176 0 4 19 1300 41 44 55 38 52 6 12 175 0 0 1 114 0 176 0 4 19 1400 43 45 56 37 49 7 13 172 0 0 1 114 0 176 0 4 19 1500 44 46 53 43 46 6 11 170 0 0 1 113 0 176 0 4 19 1600 46 48 48 54 46 4 8 174 0 0 1 114 0 176 0 4 19 1700 44 44 44 64 46 6 8 165 0 0 1 114 0 176 0 4 19 1800 41 42 41 72 49 7 13 155 0 0 1 114 0 176 0 4 19 1900 39 41 39 77 50 9 15 141 0 0 1 114 0 176 0 4 19 2000 39 40 38 79 51 8 16 142 0 0 1 114 0 176 0 4 19 2100 38 39 36 82 51 7 12 134 0 0 1 114 0 176 0 4 19 2200 37 38 35 83 49 11 16 122 0 0 1 114 0 176 0 4 19 2300 36 38 34 84 46 15 23 119 0 0 1 114 0 176 0 4 20 0 35 36 34 84 45 14 20 118 0 0 1 114 0 176 0 4 20 100 34 37 33 84 40 16 20 118 0 0 1 114 0 176 0 4 20 200 35 36 33 81 37 13 19 126 0 0 1 114 0 176 0 4 20 300 35 37 33 81 37 13 20 123 0 0 1 114 0 176 0 4 20 400 34 35 32 82 35 10 18 130 0 0 1 114 0 176 0 Total Prec. 3100' ------------------------------------------------------------------------ 0 Page 1 4-20-2021 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 19 500 38 38 35 87 14 19 84 0 0 -0 97 1024 .014 .014 32 4 19 600 36 36 35 88 14 19 96 0 0 -0 97 1025 .013 .027 32 4 19 700 35 40 38 76 12 17 77 0 0 -0 97 1025 .013 .04 32 4 19 800 36 39 47 51 10 14 74 0 0 -0 97 1026 .013 .053 32 4 19 900 40 43 51 42 13 21 117 0 0 -0 96 1026 .012 .065 32 4 19 1000 42 46 52 39 13 21 130 0 0 -0 96 1026 .011 .076 32 4 19 1100 44 48 52 39 13 19 127 0 0 -0 95 1025 .008 .084 32 4 19 1200 45 50 54 37 12 19 129 0 0 -0 95 1025 .009 .093 32 4 19 1300 47 51 55 35 11 17 135 0 0 -0 94 1025 .014 .107 32 4 19 1400 48 50 56 34 10 15 135 0 0 -0 94 1024 .016 .123 32 4 19 1500 49 51 58 33 8 15 138 0 0 -0 94 1024 .017 .14 32 4 19 1600 50 53 57 32 7 12 142 0 0 -0 94 1023 .017 .157 32 4 19 1700 51 52 54 36 9 13 142 0 0 -0 94 1023 .017 .174 32 4 19 1800 50 49 46 57 9 16 152 0 0 -0 94 1023 .017 .191 32 4 19 1900 48 45 40 71 7 13 92 0 0 -0 94 1023 .016 .207 32 4 19 2000 46 44 38 77 6 10 77 0 0 -0 94 1024 .015 .222 32 4 19 2100 45 43 36 79 9 12 114 0 0 -0 94 1024 .015 .237 32 4 19 2200 43 42 34 82 10 13 101 0 0 -0 95 1024 .015 .252 32 4 19 2300 41 42 33 82 11 14 99 0 0 -0 95 1024 .015 .267 32 4 20 0 40 40 32 82 11 17 95 0 0 -0 95 1024 .014 .281 32 4 20 100 40 40 32 82 12 14 110 0 0 -0 95 1024 .014 .295 32 4 20 200 40 39 32 83 10 13 106 0 0 0 95 1024 .014 .309 32 4 20 300 38 40 32 81 10 13 110 0 0 -0 95 1024 .014 .323 32 4 20 400 38 38 30 86 11 16 113 0 0 0 95 1024 .014 .337 32 Total Lysim Prec. Total 3010' 3010' ------------------------------------------------------------------------------------------------ 0 .337 Page 1 4-20-2021 Northwest Avalanche Center Washington Department of Transportation Blewett Pass, WA Precipitation gage may measure condensation MM/DD Hour Temp RH Equip Hour Total 24 Hr Total Press PST F % Temp Prec. Prec. Snow Snow mb 4100' 4100' 4100' 4100' 4100' 4100' 4100' 4100' ------------------------------------------------------------ 4 19 500 40 40 39 0 0 0 1 1023 4 19 600 39 44 40 0 0 0 0 1024 4 19 700 42 44 50 0 0 -0 -0 1025 4 19 800 44 38 57 0 0 -0 0 1025 4 19 900 41 38 57 0 0 0 -0 1025 4 19 1000 43 36 57 0 0 0 -0 1026 4 19 1100 45 33 58 0 0 0 -0 1026 4 19 1200 48 30 58 0 0 -0 -0 1025 4 19 1300 50 27 63 0 0 0 -0 1025 4 19 1400 50 25 62 0 0 0 0 1024 4 19 1500 51 24 65 0 0 0 -0 1024 4 19 1600 50 25 61 0 0 -0 -0 1024 4 19 1700 49 26 54 0 0 0 0 1023 4 19 1800 48 28 50 0 0 0 0 1023 4 19 1900 41 45 41 0 0 0 1 1023 4 19 2000 38 49 36 0 0 0 0 1023 4 19 2100 36 48 34 0 0 0 0 1023 4 19 2200 35 47 32 0 0 0 0 1023 4 19 2300 34 44 32 0 0 0 0 1023 4 20 0 33 41 31 0 0 0 0 1023 4 20 100 32 45 30 0 0 0 0 1023 4 20 200 32 44 30 0 0 0 0 1023 4 20 300 31 48 28 0 0 0 0 1023 4 20 400 30 52 27 0 0 0 0 1023 Total Prec. 4100' ------------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Mission Ridge Ski Area, Washington MM/DD Hour Temp Temp Temp RH RH Wind Wind Wind Hour Total 24 Hr Total PST F F F % % Avg Max Dir Prec. Prec. Snow Snow 6730' 5160' 4610' 6730' 5160' 6730' 6730' 6730' 5160' 5160' 5160' 5160' ------------------------------------------------------------------------------------ 4 19 500 27 34 36 71 72 32 42 47 0 0 1 29 4 19 600 26 34 35 76 76 35 42 45 0 0 1 30 4 19 700 25 32 35 85 82 34 40 44 0 0 1 30 4 19 800 25 32 35 78 74 28 38 43 0 0 1 29 4 19 900 25 33 35 75 71 29 36 43 0 0 0 29 4 19 1000 27 33 37 71 68 21 28 42 0 0 1 29 4 19 1100 28 35 38 65 64 12 24 37 0 0 1 29 4 19 1200 32 37 40 55 57 5 13 3 0 0 0 28 4 19 1300 36 39 42 47 53 3 11 0 0 0 0 28 4 19 1400 35 39 43 46 51 5 13 4 0 0 0 28 4 19 1500 38 40 44 41 48 0 7 305 0 0 1 28 4 19 1600 39 40 45 42 47 2 10 277 0 0 1 28 4 19 1700 39 38 44 41 57 1 8 278 0 0 1 28 4 19 1800 37 35 38 40 72 0 7 278 0 0 1 28 4 19 1900 34 34 37 46 73 3 9 245 0 0 1 28 4 19 2000 32 34 36 51 76 4 7 347 0 0 1 28 4 19 2100 32 32 36 51 79 4 6 0 0 0 1 29 4 19 2200 31 32 35 50 80 3 5 17 0 0 1 28 4 19 2300 31 31 34 45 78 2 6 45 0 0 1 28 4 20 0 31 31 34 41 75 3 7 87 0 0 1 28 4 20 100 30 30 33 39 72 6 7 26 0 0 1 28 4 20 200 29 29 32 42 74 3 6 355 0 0 1 28 4 20 300 29 28 31 43 75 4 8 5 0 0 1 28 4 20 400 28 28 31 47 77 5 8 20 0 0 1 28 Total Prec. 5160' ------------------------------------------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Crystal Mountain Ski Area, Washington MM/DD Hour Temp Temp RH RH Wind Wind Wind Wind Hour Total 24 Hr Total SR50 PST F F % % Min Avg Max Dir Prec. Prec. Snow Snow Snow 6830' 4540' 6830' 4540' 6830' 6830' 6830' 6830' 4540' 4540' 4540' 4540' 4540' ------------------------------------------------------------------------------------------ 4 19 500 37 36 58 68 2 6 10 282 0 0 -3 224 82 4 19 600 37 35 58 72 0 2 6 195 0 0 -3 224 82 4 19 700 36 35 71 77 5 14 21 127 0 0 -3 223 82 4 19 800 37 40 71 64 11 16 23 113 0 0 -3 222 81 4 19 900 37 44 69 55 10 18 34 111 0 0 -3 220 81 4 19 1000 38 46 67 46 8 15 22 117 0 0 -3 217 81 4 19 1100 38 47 66 43 6 12 20 114 0 0 -3 216 81 4 19 1200 39 49 63 41 4 10 16 118 0 0 -3 214 81 4 19 1300 41 50 59 40 5 9 16 119 0 0 -3 214 81 4 19 1400 43 52 54 38 3 8 16 115 0 0 -4 214 80 4 19 1500 46 47 47 54 0 5 11 176 0 0 -5 216 79 4 19 1600 49 52 42 36 0 5 13 249 0 0 -4 211 79 4 19 1700 44 45 49 57 1 5 11 239 0 0 -4 219 79 4 19 1800 47 37 44 75 0 5 18 216 0 0 -4 223 80 4 19 1900 39 35 62 80 0 4 8 120 0 0 -4 223 80 4 19 2000 35 34 66 81 0 3 6 110 0 0 -4 224 80 4 19 2100 34 33 69 82 0 2 6 85 0 0 -3 224 80 4 19 2200 34 32 65 80 2 5 9 66 0 0 -3 224 80 4 19 2300 34 32 65 85 5 7 10 22 0 0 -3 224 80 4 20 0 33 32 68 82 4 7 11 51 0 0 -3 224 80 4 20 100 32 31 70 78 2 6 11 89 0 0 -3 224 80 4 20 200 31 31 65 77 5 8 14 90 0 0 -3 225 80 4 20 300 30 31 62 78 4 8 11 93 0 0 -3 224 80 4 20 400 31 31 60 71 4 8 11 95 0 0 -3 225 80 Total Prec. 4540' ------------------------------------------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Green Valley and Campbell Basin, Crystal Mountain Ski Area, Washington MM/DD Hour Temp Temp 24 hr Total 24 hr Total PST F F Snow Snow Snow Snow 6230' 5940' 6230' 6230' 5940' 5940' ------------------------------------------------ 4 19 500 37 35 -0 123 0 112 4 19 600 35 35 -0 123 0 112 4 19 700 34 36 -0 123 -0 112 4 19 800 33 39 -0 123 0 112 4 19 900 35 40 -0 123 0 112 4 19 1000 38 42 -0 122 0 111 4 19 1100 42 41 -0 121 0 111 4 19 1200 43 45 -0 122 -0 111 4 19 1300 42 47 -0 122 -0 111 4 19 1400 45 49 -0 121 -0 110 4 19 1500 47 49 -0 120 -117 110 4 19 1600 47 48 -0 121 -0 110 4 19 1700 41 43 -0 121 -5 110 4 19 1800 39 39 -0 121 0 110 4 19 1900 36 36 -0 121 0 110 4 19 2000 35 35 -0 122 0 110 4 19 2100 35 34 -0 122 -113 110 4 19 2200 35 34 -0 122 0 110 4 19 2300 35 33 -0 122 0 110 4 20 0 33 33 -0 122 0 110 4 20 100 33 33 -0 121 0 110 4 20 200 32 32 -0 121 0 110 4 20 300 32 32 -0 121 0 110 4 20 400 32 31 -0 121 0 110 Page 1 4-20-2021 Northwest Avalanche Center Washington Department of Transportation Chinook Pass, Washington Wind gages unheated and may rime Precipitation gage may measure condensation MM/DD Hour Temp Temp RH RH Wind Wind Wind Equip Hour Total Total PST F F % % Avg Max Dir Temp Prec. Prec. Snow 6240' 5500' 6240' 5500' 6240' 6240' 6240' 5500' 5500' 5500' 5500' ------------------------------------------------------------------------------ 4 19 500 32 35 73 59 10 19 88 33 0 0 163 4 19 600 32 32 74 71 17 23 93 33 0 0 163 4 19 700 31 31 79 80 10 21 92 35 0 0 163 4 19 800 31 32 79 77 6 11 93 34 0 0 163 4 19 900 35 35 67 65 5 11 94 37 0 0 163 4 19 1000 38 38 60 56 3 8 83 52 0 0 163 4 19 1100 42 39 53 52 3 6 101 55 0 0 162 4 19 1200 44 41 51 49 2 5 104 57 0 0 163 4 19 1300 46 43 47 46 3 11 83 60 0 0 162 4 19 1400 47 46 47 41 5 8 97 63 0 0 162 4 19 1500 48 46 44 41 3 8 84 65 0 0 161 4 19 1600 43 44 50 44 5 12 76 56 0 0 161 4 19 1700 40 42 53 46 6 12 76 46 0 0 161 4 19 1800 39 40 54 50 9 12 89 43 0 0 161 4 19 1900 36 38 59 55 6 11 86 39 0 0 161 4 19 2000 35 36 60 53 10 15 86 36 0 0 161 4 19 2100 32 35 61 52 11 14 88 34 0 0 161 4 19 2200 34 35 57 50 10 16 86 33 0 0 161 4 19 2300 32 34 57 52 9 12 79 32 0 0 161 4 20 0 31 32 60 58 11 14 83 31 0 0 161 4 20 100 33 31 54 56 14 17 83 30 0 0 161 4 20 200 32 31 50 47 9 13 80 30 0 0 161 4 20 300 30 32 49 43 10 14 85 31 0 0 161 4 20 400 31 31 46 43 11 15 80 30 0 0 161 Total Prec. 5500' ------------------------------------------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Sunrise, Mount Rainier National Park, Washington Wind gages unheated and may rime MM/DD Hour Temp Temp RH RH Wind Wind Wind Total PST F F % % Avg Max Dir Snow 6880' 6410' 6880' 6410' 6880' 6880' 6880' 6410' ------------------------------------------------------------ 4 19 500 36 36 59 55 5 8 354 92 4 19 600 40 40 52 48 3 8 351 92 4 19 700 37 37 58 55 4 12 334 91 4 19 800 35 43 68 47 13 18 183 91 4 19 900 37 41 67 52 13 18 183 90 4 19 1000 38 42 63 51 11 16 181 90 4 19 1100 40 43 60 51 10 16 182 91 4 19 1200 47 44 45 48 5 11 206 90 4 19 1300 46 42 47 52 2 7 264 90 4 19 1400 47 42 47 52 3 6 325 91 4 19 1500 49 47 44 43 3 8 333 90 4 19 1600 48 46 44 45 4 8 351 91 4 19 1700 45 44 48 48 1 6 50 91 4 19 1800 43 43 53 50 3 8 14 91 4 19 1900 36 37 66 58 0 6 38 91 4 19 2000 34 35 72 63 0 8 26 91 4 19 2100 35 33 68 67 0 4 40 91 4 19 2200 33 33 71 69 0 4 52 91 4 19 2300 33 33 70 66 1 7 38 91 4 20 0 32 34 70 63 2 7 35 91 4 20 100 33 32 70 64 0 3 61 91 4 20 200 33 31 67 66 0 0 136 91 4 20 300 32 31 60 58 4 6 191 91 4 20 400 32 31 60 56 0 2 79 91 Page 1 4-20-2021 Northwest Avalanche Center Paradise, Mt Rainier National Park, Washington MM/DD Hour Temp RH Wind Wind Wind Hour Total 24 Hr Total Solar PST F % Avg Max Dir Prec. Prec. Snow Snow W/m2 5400' 5400' 5380' 5380' 5380' 5400' 5400' 5400' 5400' 5380' ------------------------------------------------------------------------ 4 19 500 38 53 3 6 62 0 0 0 186 3 4 19 600 37 56 3 8 74 0 0 0 186 32 4 19 700 37 63 6 11 93 0 0 0 186 271 4 19 800 39 62 8 16 93 0 0 0 186 500 4 19 900 40 59 9 18 98 0 0 0 185 704 4 19 1000 42 52 9 16 95 0 0 0 185 875 4 19 1100 43 50 8 14 100 0 0 0 185 986 4 19 1200 47 43 6 13 98 0 0 -0 184 1025 4 19 1300 49 40 4 12 94 0 0 -0 184 1025 4 19 1400 50 39 2 5 64 0 0 -0 183 975 4 19 1500 51 38 2 7 32 0 0 -0 183 514 4 19 1600 48 45 2 7 263 0 0 -0 184 246 4 19 1700 47 49 3 7 259 0 0 0 184 113 4 19 1800 45 56 2 6 226 0 0 0 184 77 4 19 1900 42 51 1 4 140 0 0 0 184 7 4 19 2000 40 54 3 8 91 0 0 0 184 0 4 19 2100 38 58 3 10 81 0 0 0 184 0 4 19 2200 37 59 3 9 82 0 0 0 184 0 4 19 2300 36 60 2 5 66 0 0 0 184 0 4 20 0 36 61 2 4 67 0 0 0 184 0 4 20 100 35 60 2 6 58 0 0 0 184 0 4 20 200 36 54 1 4 52 0 0 0 184 0 4 20 300 35 52 2 5 65 0 0 0 184 0 4 20 400 34 54 2 6 72 0 0 0 184 0 Total Prec. 5400' ------------------------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Camp Muir, Mt Rainier National Park, Washington Wind gages unheated and may rime MM/DD Hour Temp RH Wind Wind Wind Wind Solar PST F % Min Avg Max Dir w/m2 10110' 10110' 10110' 10110' 10110' 10110' 10110' --------------------------------------------------------------- 4 19 500 25 36 0 8 17 276 0 4 19 600 23 53 0 7 12 257 18 4 19 700 26 49 0 4 10 259 143 4 19 800 28 47 0 2 10 221 376 4 19 900 29 56 0 2 7 206 578 4 19 1000 35 33 0 4 10 221 755 4 19 1100 30 60 0 3 8 261 884 4 19 1200 32 54 0 3 9 243 966 4 19 1300 30 70 0 2 8 245 996 4 19 1400 25 92 0 4 13 212 911 4 19 1500 32 68 0 3 13 265 781 4 19 1600 24 97 0 6 14 244 411 4 19 1700 25 90 0 5 11 218 176 4 19 1800 23 97 0 0 4 135 111 4 19 1900 22 96 0 1 6 85 20 4 19 2000 22 97 0 0 6 179 0 4 19 2100 21 96 0 1 5 235 0 4 19 2200 20 95 0 0 6 244 0 4 19 2300 19 95 0 2 6 275 0 4 20 0 22 45 0 5 12 35 0 4 20 100 21 59 0 2 10 322 0 4 20 200 20 67 0 0 3 282 0 4 20 300 20 68 0 0 4 282 0 4 20 400 19 79 0 3 9 287 0 Page 1 4-20-2021 Northwest Avalanche Center White Pass Ski Area, Washington MM/DD Hour Temp Temp RH RH Wind Wind Wind Wind Hour Total Total PST F F % % Min Avg Max Dir Prec. Prec. Snow 5800' 4500' 5800' 4500' 5970' 5970' 5970' 5970' 5800' 5800' 5800' ------------------------------------------------------------------------------ 4 19 500 32 35 80 70 18 23 30 111 0 0 130 4 19 600 32 35 84 77 18 23 27 109 0 0 130 4 19 700 30 35 80 70 19 23 28 109 0 0 130 4 19 800 34 36 66 60 16 22 28 108 0 0 130 4 19 900 37 38 60 55 16 20 25 109 0 0 129 4 19 1000 40 39 54 51 12 18 24 99 0 0 129 4 19 1100 43 41 48 48 10 15 21 101 0 0 128 4 19 1200 44 43 47 46 7 13 18 95 0 0 128 4 19 1300 46 45 44 44 5 11 15 90 0 0 128 4 19 1400 46 47 48 41 4 10 15 90 0 0 127 4 19 1500 45 49 48 39 4 9 13 96 0 0 128 4 19 1600 43 49 54 39 5 10 14 99 0 0 128 4 19 1700 41 50 51 38 8 13 16 109 0 0 128 4 19 1800 38 46 57 43 11 15 19 111 0 0 128 4 19 1900 35 41 59 49 11 15 22 112 0 0 128 4 19 2000 33 38 63 54 14 17 22 109 0 0 128 4 19 2100 32 35 59 66 12 16 19 111 0 0 128 4 19 2200 32 33 60 65 9 14 18 116 0 0 128 4 19 2300 31 31 60 73 8 12 18 124 0 0 129 4 20 0 31 30 57 74 13 15 18 117 0 0 128 4 20 100 29 30 56 73 13 16 19 108 0 0 128 4 20 200 29 29 49 68 15 17 22 106 0 0 128 4 20 300 30 30 45 57 16 18 21 108 0 0 128 4 20 400 29 28 46 70 16 18 21 108 0 0 129 Total Prec. 5800' ------------------------------------------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Washington Department of Transportation WSDOT White Pass Station, Washington MM/DD Hour Temp RH Press Wind Wind Hour Total 24 Hr Total Snow DewPt PST F % mb Avg Dir Prec Prec Snow Snow TempC TempC 4320' 4320' 4320' 4320' 4320' 4320' 4320' 4320' 4320' 4320' 4320 ------------------------------------------------------------------------------ 4 19 500 72 1 1024 1538 -7999 0 0 -2 -7999 55 4 19 600 74 1 1025 1536 -7999 0 0 -2 -7999 324 4 19 700 60 1 1026 1537 -7999 0 0 -4 -7999 114 4 19 800 50 2 1025 1536 -7999 0 0 -5 -7999 6 4 19 900 47 2 1026 1533 -7999 0 0 -5 -7999 300 4 19 1000 44 2 1026 1534 -7999 0 0 -5 -7999 146 4 19 1100 40 4 1026 1531 -7999 0 0 -5 -7999 316 4 19 1200 39 4 1025 1532 -7999 0 0 -4 -7999 289 4 19 1300 37 4 1025 1534 -7999 0 0 -4 -7999 116 4 19 1400 37 5 1024 1537 -7999 0 0 -4 -7999 138 4 19 1500 35 5 1024 1539 -7999 0 0 -4 -7999 336 4 19 1600 35 4 1024 1536 -7999 0 0 -4 -7999 106 4 19 1700 37 3 1023 1541 -7999 0 0 -4 -7999 232 4 19 1800 60 3 1023 1557 -7999 0 0 -1 -7999 114 4 19 1900 70 0 1024 1559 -7999 0 0 -2 -7999 320 4 19 2000 85 0 1024 1563 -7999 0 0 -1 -7999 33 4 19 2100 87 0 1024 1566 -7999 0 0 -2 -7999 8 4 19 2200 86 0 1024 1567 -7999 0 0 -2 -7999 2 4 19 2300 85 0 1024 1567 -7999 0 0 -2 -7999 355 4 20 0 78 2 1024 1567 -7999 0 0 -3 -7999 353 4 20 100 82 1 1024 1570 -7999 0 0 -4 -7999 294 4 20 200 86 0 1024 1571 -7999 0 0 -3 -7999 335 4 20 300 88 0 1024 1573 -7999 0 0 -4 -7999 299 4 20 400 83 0 1023 1573 -7999 0 0 -5 -7999 311 Total Prec 4320' ------------------------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Mt St Helens, Coldwater Ridge Visitor Center, Washington MM/DD Hour Temp RH Wind Wind Wind Hour Total PST F % Avg Max Dir Prec. Prec. 3260' 3260' 3260' 3260' 3260' 3260' 3260' ------------------------------------------------------ Total Prec. 3260' ------------------------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Timberline Lodge, Oregon MM/DD Hour Temp RH Wind Wind Wind Wind Hour Total 24 Hr Total PST F % Min Avg Max Dir Prec. Prec. Snow Snow 5880' 5880' 6000' 6000' 6000' 6000' 5880' 5880' 5880' 5880' ------------------------------------------------------------------------ 4 19 500 35 36 -0 0 1 260 0 0 -0 166 4 19 600 36 61 -0 1 12 279 0 0 -0 166 4 19 700 38 66 -0 3 11 315 0 0 -0 165 4 19 800 37 69 -0 5 15 316 0 0 -0 165 4 19 900 37 65 -0 5 16 310 0 0 -0 165 4 19 1000 39 58 -0 5 16 319 0 0 -0 165 4 19 1100 40 56 -0 5 13 315 0 0 -0 165 4 19 1200 41 54 -0 5 16 315 0 0 -0 164 4 19 1300 42 51 -0 3 13 315 0 0 -0 165 4 19 1400 42 50 -0 2 9 322 0 0 -0 164 4 19 1500 40 52 -0 2 8 319 0 0 -0 164 4 19 1600 39 56 -0 2 10 314 0 0 -0 164 4 19 1700 39 57 -0 5 13 308 0 0 -0 164 4 19 1800 37 61 -0 3 8 303 0 0 -0 164 4 19 1900 37 59 -0 0 3 277 0 0 -0 164 4 19 2000 38 56 -0 -0 0 162 0 0 -0 164 4 19 2100 39 43 -0 0 8 263 0 0 -0 164 4 19 2200 40 34 -0 1 9 281 0 0 -0 164 4 19 2300 40 50 -0 2 8 242 0 0 -0 164 4 20 0 39 52 -0 4 16 288 0 0 -0 164 4 20 100 39 51 -0 5 17 251 0 0 -0 164 4 20 200 38 40 -0 4 15 293 0 0 -0 164 4 20 300 38 42 -0 3 13 266 0 0 -0 164 4 20 400 37 30 -0 5 13 283 0 0 -0 164 Total Prec. 5880' ------------------------------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Top of The Magic Mile chair, Timberline, Oregon Wind instruments not heating and may rime MM/DD Hour Temp RH Wind Wind Wind Wind PST F % Min Avg Max Dir 7000' 7000' 7000' 7000' 7000' 7000' ------------------------------------------------ 4 19 500 34 37 0 2 8 -7999 4 19 600 35 30 0 5 15 237 4 19 700 39 31 0 2 9 241 4 19 800 40 38 0 1 6 -7999 4 19 900 41 54 0 1 8 -7999 4 19 1000 39 62 0 4 13 -7999 4 19 1100 35 71 0 9 18 -7999 4 19 1200 34 71 4 14 20 -7999 4 19 1300 36 67 3 9 17 -7999 4 19 1400 36 66 2 10 17 -7999 4 19 1500 35 67 1 8 14 -7999 4 19 1600 35 66 3 8 13 244 4 19 1700 39 56 0 2 8 246 4 19 1800 39 57 0 3 9 250 4 19 1900 37 51 4 6 8 243 4 19 2000 36 49 3 6 8 243 4 19 2100 36 46 0 0 5 260 4 19 2200 36 39 0 7 18 35 4 19 2300 34 51 0 4 12 119 4 20 0 34 46 0 2 6 262 4 20 100 34 39 0 3 6 266 4 20 200 34 38 2 7 12 271 4 20 300 33 41 1 8 23 251 4 20 400 33 37 8 28 45 230 Page 1 4-20-2021 Northwest Avalanche Center Mt Hood Meadows Ski Area, Oregon MM/DD Hour Temp Temp RH RH Wind Wind Wind Hour Total 24 Hr Total Press PST F F % % Avg Max Dir Prec. Prec. Snow Snow mb 6540' 5380' 6540' 5380' 6540' 6540' 6540' 5380' 5380' 5380' 5380' 5380' ------------------------------------------------------------------------------------ 4 19 500 33 38 50 49 10 20 15 0 0 0 133 1021 4 19 600 32 37 64 60 11 19 52 0 0 0 133 1022 4 19 700 32 38 69 66 7 11 23 0 0 0 133 1022 4 19 800 32 39 71 64 12 17 46 0 0 0 133 1022 4 19 900 34 39 67 59 11 17 29 0 0 0 133 1023 4 19 1000 33 40 64 54 12 17 75 0 0 0 133 1023 4 19 1100 35 43 62 50 10 16 112 0 0 0 132 1024 4 19 1200 36 44 57 45 11 16 -47 0 0 0 131 1023 4 19 1300 38 45 52 44 8 15 41 0 0 0 131 1023 4 19 1400 38 44 50 43 9 15 117 0 0 0 131 1023 4 19 1500 36 43 51 45 7 12 -57 0 0 0 131 1022 4 19 1600 36 42 55 47 6 9 67 0 0 0 131 1022 4 19 1700 35 41 58 50 8 11 39 0 0 0 131 1022 4 19 1800 33 39 62 53 10 13 22 0 0 0 132 1021 4 19 1900 32 39 59 53 12 18 24 0 0 0 132 1021 4 19 2000 34 40 52 47 13 18 46 0 0 0 132 1021 4 19 2100 34 38 46 56 11 18 11 0 0 0 131 1021 4 19 2200 33 39 57 51 14 21 30 0 0 0 132 1021 4 19 2300 33 38 52 49 17 24 28 0 0 0 132 1021 4 20 0 32 39 32 30 19 28 2 0 0 0 132 1021 4 20 100 32 38 25 27 19 26 2 0 0 0 132 1020 4 20 200 32 38 32 28 20 32 -71 0 0 0 131 1020 4 20 300 32 38 32 26 22 33 346 0 0 0 131 1020 4 20 400 30 37 27 25 24 32 36 0 0 0 131 1020 Total Prec. 5380' ------------------------------------------------------------------ 0 Page 1 4-20-2021 Northwest Avalanche Center Cascade Express, Mt Hood Meadows Ski Area, Oregon Wind gages heated but building structure may cause rime around instruments MM/DD Hour Temp RH Wind Wind Wind Wind PST F % Min Avg Max Dir 7300' 7300' 7300 7300' 7300' 7300' ------------------------------------------------ 4 19 500 33 49 0 3 23 217 4 19 600 33 66 11 17 28 309 4 19 700 33 72 4 9 16 307 4 19 800 34 66 4 11 18 311 4 19 900 30 82 8 13 18 304 4 19 1000 30 81 6 13 18 248 4 19 1100 30 76 6 10 14 225 Page 1 4-20-2021 Northwest Avalanche Center Ski Bowl Ski Area, Government Camp, Oregon Wind direction unheated and may rime MM/DD Hour Temp Temp RH RH Wind Wind Wind Wind Hour Total Total PST F F % % Min Avg Max Dir Prec. Prec. Snow 5010' 3660' 5010' 3660' 5010' 5010' 5010' 5010' 3660' 3660' 5010' ------------------------------------------------------------------------------ 4 19 500 38 31 56 86 2 9 18 0 0 0 76 4 19 600 37 37 68 73 5 16 30 0 0 0 76 4 19 700 38 38 73 75 7 15 23 0 0 0 75 4 19 800 38 43 74 67 9 18 30 0 0 0 75 4 19 900 40 45 70 61 8 18 32 0 0 0 76 4 19 1000 40 49 66 47 8 16 28 0 0 0 76 4 19 1100 41 52 61 46 6 13 25 0 0 0 75 4 19 1200 42 51 58 44 6 12 23 0 0 0 75 4 19 1300 42 50 57 45 4 10 23 0 0 0 74 4 19 1400 42 50 57 44 4 10 19 0 0 0 74 4 19 1500 42 49 54 45 4 11 18 0 0 0 74 4 19 1600 41 47 56 52 6 10 18 0 0 0 74 4 19 1700 41 44 57 59 3 8 16 0 0 0 74 4 19 1800 40 40 57 72 4 10 19 0 0 0 74 4 19 1900 38 37 64 79 8 15 23 0 0 0 74 4 19 2000 38 36 56 83 7 13 21 0 0 0 74 4 19 2100 37 37 57 72 6 13 22 0 0 0 74 4 19 2200 36 39 54 59 8 16 25 0 0 0 74 4 19 2300 35 40 59 46 12 23 35 0 0 0 74 4 20 0 35 39 48 44 9 18 30 0 0 0 74 4 20 100 35 38 50 49 11 19 28 0 0 0 74 4 20 200 35 35 48 69 10 22 32 0 0 0 74 4 20 300 34 34 44 63 8 20 31 0 0 0 73 4 20 400 33 37 54 46 11 22 32 0 0 0 74 Total Prec. 3660' ------------------------------------------------------------------------ 0 Page 1