4-21-2021 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 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 4 20 500 39 42 0 2 5 53 0 0 104 4 20 600 40 34 -0 1 4 67 0 0 105 4 20 700 41 49 -0 1 6 91 0 0 104 4 20 800 46 44 -0 4 12 121 0 0 104 4 20 900 46 48 -0 0 0 83 0 0 104 4 20 1000 48 51 -0 0 2 72 0 0 104 4 20 1100 48 54 -0 0 4 65 0 0 104 4 20 1200 46 55 -0 3 7 52 0 0 103 4 20 1300 48 51 1 4 7 42 0 0 103 4 20 1400 48 48 2 5 10 42 0 0 102 4 20 1500 47 50 0 5 9 33 0 0 102 4 20 1600 46 50 3 6 9 36 0 0 103 4 20 1700 44 49 5 7 9 39 0 0 103 4 20 1800 43 48 3 6 10 41 0 0 103 4 20 1900 42 51 -0 2 6 46 0 0 103 4 20 2000 42 55 -0 0 2 56 0 0 103 4 20 2100 42 56 -0 2 4 53 0 0 103 4 20 2200 42 53 0 2 5 62 0 0 103 4 20 2300 42 65 -0 1 5 69 0 0 103 4 21 0 42 59 -0 0 4 84 0 0 103 4 21 100 41 59 -0 0 4 89 0 0 103 Total Prec. 5250' ------------------------------------------------------------ 0 Page 1 4-21-2021 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 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 4 20 500 41 40 45 50 5 7 8 200 0 0 -0 182 4 20 600 46 40 38 50 0 1 6 192 0 0 -0 182 4 20 700 44 42 42 45 0 1 5 155 0 0 -0 182 4 20 800 46 44 37 44 2 4 5 122 0 0 -0 181 4 20 900 48 46 39 44 0 2 5 181 0 0 -0 181 4 20 1000 50 48 39 41 0 2 5 172 0 0 -0 181 4 20 1100 48 49 40 41 0 4 8 176 0 0 -0 181 4 20 1200 48 50 40 40 1 6 11 185 0 0 -0 181 4 20 1300 49 52 34 34 3 7 12 203 0 0 -0 180 4 20 1400 50 54 31 28 0 5 11 220 0 0 -0 179 4 20 1500 52 54 28 29 0 5 9 198 0 0 -0 179 4 20 1600 50 51 29 33 0 4 7 279 0 0 -0 179 4 20 1700 48 51 35 33 4 6 10 316 0 0 -0 179 4 20 1800 48 48 37 39 0 4 12 13 0 0 -0 180 4 20 1900 45 46 43 44 0 2 8 98 0 0 -0 180 4 20 2000 43 43 58 54 0 2 7 88 0 0 -0 179 4 20 2100 42 41 59 58 1 3 4 81 0 0 -0 180 4 20 2200 43 40 52 61 0 1 4 79 0 0 -0 179 4 20 2300 43 40 47 57 0 0 0 78 0 0 0 179 4 21 0 44 40 45 55 0 0 0 78 0 0 0 179 4 21 100 43 41 46 53 0 0 0 77 0 0 0 179 Total Prec. 4210' ------------------------------------------------------------------------ 0 Page 1 4-21-2021 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 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 4 20 500 28 23 66 85 0 2 21 53 0 0 82 4 20 600 33 22 53 86 0 0 345 54 0 0 82 4 20 700 36 25 52 82 0 1 7 56 0 0 82 4 20 800 36 30 57 65 0 2 136 59 0 0 82 4 20 900 33 35 61 52 1 5 21 62 0 0 81 4 20 1000 34 40 59 44 4 7 21 77 0 0 80 4 20 1100 38 44 51 35 6 9 38 79 0 0 80 4 20 1200 39 47 41 28 6 11 42 88 0 0 79 4 20 1300 40 48 38 24 7 13 32 90 0 0 79 4 20 1400 41 49 39 27 6 10 42 92 0 0 79 4 20 1500 47 48 34 30 4 12 42 96 0 0 78 4 20 1600 43 48 38 32 4 9 197 89 0 0 78 Total Prec. 5450' ------------------------------------------------------------------------ 0 Page 1 4-21-2021 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 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 4 20 500 28 91 1 0 0 277 0 0 0 -0 4 20 600 28 91 17 0 0 271 0 0 0 -0 4 20 700 34 84 36 0 0 328 0 0 0 -0 4 20 800 43 51 83 0 2 37 0 0 0 -0 4 20 900 50 34 98 1 4 63 0 0 0 -0 4 20 1000 53 26 245 1 5 125 0 0 0 -0 4 20 1100 57 25 70 2 4 146 0 0 0 -0 4 20 1200 60 22 913 2 6 134 0 0 0 -0 4 20 1300 62 19 898 2 5 132 0 0 -0 -1 4 20 1400 65 18 821 2 4 156 0 0 -0 -1 4 20 1500 65 19 686 1 4 149 0 0 0 -1 4 20 1600 64 20 56 0 3 162 0 0 0 -0 4 20 1700 62 22 76 1 4 151 0 0 0 -0 4 20 1800 58 29 11 0 3 138 0 0 0 -0 4 20 1900 51 48 3 0 0 237 0 0 0 -0 4 20 2000 48 48 0 0 2 226 0 0 0 -0 4 20 2100 46 49 0 1 3 278 0 0 0 -0 4 20 2200 45 53 0 2 5 292 0 0 0 -1 4 20 2300 42 58 0 2 4 315 0 0 0 -0 4 21 0 43 54 0 3 5 319 0 0 0 -1 Total Prec. 2170' ------------------------------------------------------------ 0 Page 1 4-21-2021 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 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 4 20 500 30 33 5 7 10 105 4 20 600 35 37 5 7 10 106 4 20 700 38 45 4 7 9 104 4 20 800 40 37 2 5 8 102 4 20 900 43 38 0 4 8 103 4 20 1000 45 40 0 3 9 96 4 20 1100 45 41 0 2 7 76 4 20 1200 47 44 0 3 8 67 4 20 1300 51 44 0 2 7 76 4 20 1400 50 45 0 2 7 66 4 20 1500 51 47 0 2 6 49 4 20 1600 49 45 0 2 6 41 4 20 1700 50 46 0 2 4 44 4 20 1800 47 45 0 1 5 48 4 20 1900 48 43 0 2 4 56 4 20 2000 42 39 0 5 10 218 4 20 2100 42 39 3 5 8 271 4 20 2200 42 38 0 3 6 272 4 20 2300 41 39 0 0 2 317 4 21 0 42 39 0 0 3 310 4 21 100 42 41 0 2 4 283 Page 1 4-21-2021 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 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 4 20 500 32 76 0 0 0 110 1022 4 20 600 31 74 0 0 0 110 1022 4 20 700 32 75 0 0 0 110 1022 4 20 800 36 61 0 0 0 109 1022 4 20 900 39 59 0 0 0 109 1022 4 20 1000 42 49 0 0 0 109 1022 4 20 1100 46 45 0 0 0 108 1021 4 20 1200 48 43 0 0 0 108 1021 4 20 1300 50 38 0 0 0 108 1021 4 20 1400 51 34 0 0 0 108 1021 4 20 1500 51 34 0 0 0 108 1020 4 20 1600 49 38 0 0 0 108 1020 4 20 1700 47 45 0 0 0 108 1019 4 20 1800 43 57 0 0 0 108 1019 4 20 1900 39 66 0 0 0 108 1019 4 20 2000 38 73 0 0 0 109 1019 4 20 2100 37 75 0 0 0 109 1019 4 20 2200 37 79 0 0 0 108 1019 4 20 2300 36 82 0 0 0 108 1019 4 21 0 36 82 0 0 0 108 1019 4 21 100 36 82 0 0 0 108 1019 Total Prec. 3950' ------------------------------------ 0 Page 1 4-21-2021 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 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 4 20 500 33 44 0 0 50 264 4 20 600 33 49 0 0 55 269 4 20 700 37 43 0 0 57 267 4 20 800 38 45 0 0 60 265 4 20 900 40 41 0 0 67 265 4 20 1000 42 41 0 0 72 266 4 20 1100 43 40 0 0 81 264 4 20 1200 46 37 0 0 83 267 4 20 1300 46 34 0 0 84 265 4 20 1400 48 28 0 0 86 264 4 20 1500 48 28 0 0 87 266 4 20 1600 47 32 0 0 80 265 4 20 1700 48 30 0 0 72 265 4 20 1800 44 44 0 0 65 263 4 20 1900 39 55 0 0 59 265 4 20 2000 39 64 0 0 58 263 4 20 2100 39 67 0 0 59 266 4 20 2200 37 72 0 0 54 263 4 20 2300 35 77 0 0 56 264 4 21 0 35 77 0 0 57 265 4 21 100 36 73 0 0 57 266 Total Prec. 4800' ------------------------------------ 0 Page 1 4-21-2021 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 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 4 20 500 32 51 10 15 166 145 0 4 20 600 34 50 9 14 166 145 0 4 20 700 35 49 7 13 158 145 0 4 20 800 36 52 8 14 159 145 0 4 20 900 41 44 9 15 158 145 0 4 20 1000 46 33 8 17 141 144 0 4 20 1100 46 35 7 14 134 144 0 4 20 1200 48 37 6 14 134 144 0 4 20 1300 50 29 7 15 137 143 -0 4 20 1400 50 29 7 15 150 143 -0 4 20 1500 49 29 5 13 155 143 0 4 20 1600 48 33 7 13 154 144 0 4 20 1700 47 31 4 14 152 144 0 4 20 1800 46 33 4 10 158 144 0 4 20 1900 44 33 4 7 173 144 0 4 20 2000 43 47 1 4 286 144 0 4 20 2100 42 57 2 5 266 144 0 4 20 2200 42 58 2 6 267 144 0 4 20 2300 41 58 0 5 278 144 0 4 21 0 41 60 0 0 331 144 0 4 21 100 41 60 1 3 299 144 0 Page 1 4-21-2021 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 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 4 20 500 29 89 0 0 0 1 1022 4 20 600 29 89 0 0 0 1 1022 4 20 700 34 77 0 0 0 1 1022 4 20 800 42 58 0 0 0 0 1022 4 20 900 51 35 0 0 -0 0 1022 4 20 1000 53 30 0 0 -0 0 1022 4 20 1100 55 25 0 0 -0 0 1021 4 20 1200 58 25 0 0 0 0 1021 4 20 1300 58 23 0 0 -0 -0 1020 4 20 1400 59 22 0 0 0 1 1019 4 20 1500 59 25 0 0 0 0 1018 4 20 1600 57 36 0 0 0 0 1018 4 20 1700 52 47 0 0 -0 0 1018 4 20 1800 48 56 0 0 -0 0 1018 4 20 1900 43 62 0 0 -0 0 1018 4 20 2000 40 65 0 0 0 0 1018 4 20 2100 38 72 0 0 -0 1 1019 4 20 2200 36 76 0 0 0 1 1018 4 20 2300 34 81 0 0 0 1 1018 4 21 0 34 83 0 0 0 1 1018 4 21 100 33 86 0 0 0 1 1018 Total Prec. 2700' ------------------------------------ 0 Page 1 4-21-2021 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 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 4 20 500 28 56 11 14 16 112 4 20 600 29 57 10 11 13 95 4 20 700 30 56 9 11 14 91 4 20 800 30 52 8 10 12 92 4 20 900 31 51 6 9 11 92 4 20 1000 33 49 4 7 10 102 4 20 1100 34 52 4 7 10 91 4 20 1200 37 47 2 6 12 86 4 20 1300 42 39 0 4 8 90 4 20 1400 42 39 1 4 11 112 4 20 1500 45 36 1 4 8 64 4 20 1600 45 36 1 6 13 186 4 20 1700 44 36 0 4 9 178 4 20 1800 43 36 0 2 7 176 4 20 1900 41 40 0 4 8 220 4 20 2000 40 42 0 0 4 295 4 20 2100 38 43 0 1 4 97 4 20 2200 39 42 3 6 8 127 4 20 2300 38 38 4 6 8 136 4 21 0 39 44 0 2 6 150 4 21 100 38 48 0 4 7 291 Page 1 4-21-2021 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 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 4 20 500 29 94 0 0 0 61 0 0 0 -0 4 20 600 28 94 0 0 0 61 0 0 0 -0 4 20 700 33 88 0 0 0 61 0 0 0 -0 4 20 800 39 79 0 0 0 86 0 0 0 -0 4 20 900 49 48 0 0 3 134 0 0 1 -0 4 20 1000 54 32 0 0 3 97 0 0 0 -0 4 20 1100 57 27 0 0 4 10 0 0 0 -0 4 20 1200 60 25 0 1 4 144 0 0 0 -1 4 20 1300 62 22 0 1 4 280 0 0 4 -1 4 20 1400 63 24 0 1 5 248 0 0 2 -0 4 20 1500 63 23 0 1 4 292 0 0 1 -0 4 20 1600 63 22 0 0 4 271 0 0 2 -0 4 20 1700 62 26 0 0 3 201 0 0 2 -0 4 20 1800 57 45 0 0 2 198 0 0 1 -1 4 20 1900 52 53 0 0 0 254 0 0 0 -0 4 20 2000 48 65 0 0 1 261 0 0 0 -0 4 20 2100 44 70 0 0 0 232 0 0 0 -0 4 20 2200 41 76 0 0 0 232 0 0 0 -0 4 20 2300 38 81 0 0 0 232 0 0 0 -0 4 21 0 35 87 0 0 0 232 0 0 1 -0 4 21 100 33 90 0 0 0 232 0 0 0 -0 Total Prec. 1930' ------------------------------------------------------------ 0 Page 1 4-21-2021 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 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 4 20 500 35 35 43 78 1 5 145 0 0 0 0 4 4 20 600 39 34 40 77 0 3 154 0 0 0 -0 3 4 20 700 41 39 38 66 1 3 187 0 0 0 -0 2 4 20 800 43 43 36 58 1 5 204 0 0 0 -0 2 4 20 900 42 49 37 46 1 7 197 0 0 0 -0 2 4 20 1000 42 55 35 31 2 7 157 0 0 0 -0 3 4 20 1100 46 60 30 20 2 7 172 0 0 0 -0 2 4 20 1200 49 60 31 19 2 8 173 0 0 -0 -0 2 4 20 1300 50 62 30 20 2 9 137 0 0 0 -0 0 4 20 1400 52 64 31 20 2 6 142 0 0 0 -0 2 4 20 1500 52 66 30 19 2 7 134 0 0 0 -0 3 4 20 1600 52 66 30 19 2 6 130 0 0 0 -0 2 4 20 1700 52 66 29 22 2 9 236 0 0 0 -0 2 4 20 1800 51 59 30 35 4 10 254 0 0 0 -0 2 4 20 1900 47 55 31 42 3 7 240 0 0 0 0 2 4 20 2000 47 51 32 48 2 7 232 0 0 0 0 2 4 20 2100 47 48 30 53 3 8 187 0 0 0 0 2 4 20 2200 47 46 32 57 1 4 175 0 0 0 0 3 4 20 2300 46 44 33 62 1 4 310 0 0 0 0 2 4 21 0 45 42 37 66 5 8 360 0 0 0 0 2 4 21 100 44 40 39 70 4 9 13 0 0 0 0 2 Total Prec. 1190 ------------------------------------------------------------------ 0 Page 1 4-21-2021 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 20 200 12.7 42 182 0 4 20 300 12.7 42 194 0 4 20 400 12.7 42 191 0 4 20 500 12.7 42 135 0 4 20 600 12.7 42 158 5 4 20 700 12.7 44 113 9 4 20 800 12.8 45 60 9 4 20 900 13.5 44 42 10 4 20 1000 13.7 46 64 10 4 20 1100 13.7 47 101 10 4 20 1200 13.5 49 163 10 4 20 1300 13.3 49 138 10 4 20 1400 13.1 50 153 10 4 20 1500 13.4 51 167 10 4 20 1600 13.8 50 154 11 4 20 1700 13.8 49 189 11 4 20 1800 14.2 48 229 11 4 20 1900 13.4 46 191 8 4 20 2000 12.9 45 303 0 4 20 2100 12.8 46 185 0 4 20 2200 12.8 46 167 0 4 20 2300 12.8 46 164 0 4 21 0 12.7 46 176 0 4 21 100 12.7 47 274 0 Page 1 4-21-2021 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 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 4 20 500 34 38 31 84 34 11 20 127 0 0 1 114 0 176 0 4 20 600 35 35 31 82 34 15 21 122 0 0 1 114 0 176 0 4 20 700 36 36 32 83 34 13 18 118 0 0 1 114 0 176 0 4 20 800 38 37 33 83 36 10 14 113 0 0 1 114 0 176 0 4 20 900 37 38 44 49 41 9 12 121 0 0 1 114 0 176 0 4 20 1000 39 41 49 36 40 7 11 128 0 0 1 114 0 176 0 4 20 1100 42 43 54 34 39 4 8 167 0 0 0 113 0 175 -0 4 20 1200 44 46 59 29 39 3 6 183 0 0 0 112 0 175 -0 4 20 1300 44 47 56 34 37 3 6 148 0 0 0 112 0 175 -0 4 20 1400 44 49 53 38 38 4 9 35 0 0 1 112 0 175 -0 4 20 1500 44 50 52 42 38 7 15 21 0 0 1 112 0 175 -0 4 20 1600 45 51 48 52 38 8 13 356 0 0 1 112 0 175 -0 4 20 1700 45 47 43 65 39 6 9 342 0 0 1 113 0 175 0 4 20 1800 45 44 41 67 38 3 6 290 0 0 1 113 0 175 0 4 20 1900 43 44 39 76 51 6 11 289 0 0 1 113 0 175 0 4 20 2000 42 42 38 80 57 10 16 7 0 0 1 113 0 175 0 4 20 2100 41 41 37 83 57 10 16 360 0 0 1 113 0 175 0 4 20 2200 41 41 37 84 55 6 9 2 0 0 1 113 0 175 0 4 20 2300 40 41 36 86 47 4 10 110 0 0 1 113 0 175 0 4 21 0 41 40 35 86 51 7 10 30 0 0 1 113 0 175 0 4 21 100 40 40 35 87 57 9 11 28 0 0 1 113 0 175 0 Total Prec. 3100' ------------------------------------------------------------------------ 0 Page 1 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 4-21-2021 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 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 4 20 500 30 51 26 0 0 0 0 1023 4 20 600 30 51 27 0 0 0 0 1023 4 20 700 44 32 54 0 0 -0 0 1023 4 20 800 41 35 57 0 0 -0 0 1023 4 20 900 42 34 57 0 0 -0 -0 1023 4 20 1000 45 31 60 0 0 0 0 1023 4 20 1100 48 28 61 0 0 -0 2 1023 4 20 1200 49 25 60 0 0 0 0 1023 4 20 1300 50 25 63 0 0 0 -0 1022 4 20 1400 51 24 63 0 0 -0 -0 1022 4 20 1500 53 23 66 0 0 -0 -0 1021 4 20 1600 51 23 61 0 0 0 -0 1021 4 20 1700 50 23 55 0 0 0 0 1020 4 20 1800 50 22 51 0 0 0 0 1020 4 20 1900 43 39 43 0 0 0 0 1019 4 20 2000 40 42 38 0 0 0 1 1020 4 20 2100 38 49 36 0 0 0 0 1019 4 20 2200 37 49 35 0 0 0 0 1020 4 20 2300 37 46 35 0 0 0 0 1019 4 21 0 37 48 34 0 0 0 0 1019 4 21 100 36 48 34 0 0 0 0 1019 Total Prec. 4100' ------------------------------------------ 0 Page 1 4-21-2021 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 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 4 20 500 28 28 31 45 75 7 9 32 0 0 1 28 4 20 600 28 28 31 45 75 9 13 33 0 0 1 29 4 20 700 28 33 33 49 63 12 16 38 0 0 1 28 4 20 800 29 36 39 49 55 15 18 41 0 0 0 27 4 20 900 30 36 38 51 58 13 19 40 0 0 0 27 4 20 1000 32 36 39 49 58 7 14 29 0 0 0 28 4 20 1100 33 38 41 49 54 6 10 17 0 0 1 28 4 20 1200 33 40 42 50 52 10 17 38 0 0 0 28 4 20 1300 35 41 44 47 49 11 16 40 0 0 0 27 4 20 1400 35 42 46 46 48 14 21 44 0 0 0 27 4 20 1500 36 42 46 46 49 14 20 41 0 0 1 27 4 20 1600 36 42 47 43 48 15 22 33 0 0 1 27 4 20 1700 36 41 46 42 54 15 23 35 0 0 1 27 4 20 1800 36 37 41 42 69 10 17 20 0 0 1 28 4 20 1900 35 36 39 43 71 10 14 24 0 0 1 27 4 20 2000 34 35 38 43 73 10 18 33 0 0 1 27 4 20 2100 34 34 37 43 74 14 18 29 0 0 1 27 4 20 2200 33 34 37 44 73 13 17 0 0 0 1 27 4 20 2300 33 34 37 47 73 9 14 9 0 0 1 27 4 21 0 33 33 37 49 75 8 13 0 0 0 1 27 4 21 100 33 33 36 53 77 5 13 349 0 0 1 27 Total Prec. 5160' ------------------------------------------------------------------------ 0 Page 1 4-21-2021 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 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 4 20 500 30 30 61 75 4 7 11 90 0 0 -3 225 80 4 20 600 33 30 58 71 6 10 16 99 0 0 -3 225 80 4 20 700 37 31 55 71 5 7 11 76 0 0 -3 225 80 4 20 800 39 38 52 62 4 6 11 92 0 0 -4 223 80 4 20 900 40 44 50 51 1 5 9 86 0 0 -4 220 79 4 20 1000 39 49 52 35 1 5 13 89 0 0 -4 214 79 4 20 1100 39 52 54 30 2 6 13 59 0 0 -4 211 78 4 20 1200 40 50 49 31 1 7 15 46 0 0 -4 212 79 4 20 1300 41 51 47 32 0 4 11 36 0 0 -4 212 79 4 20 1400 40 52 45 29 0 4 11 16 0 0 -4 214 78 4 20 1500 43 48 40 48 0 3 14 4 0 0 -4 217 77 4 20 1600 43 42 43 65 0 4 10 328 0 0 -4 221 78 4 20 1700 45 48 35 52 0 4 17 329 0 0 -4 222 78 4 20 1800 45 36 36 75 0 4 13 360 0 0 -4 223 79 4 20 1900 39 35 57 78 2 7 14 1 0 0 -4 224 79 4 20 2000 35 33 77 81 8 13 17 333 0 0 -4 224 79 4 20 2100 35 33 72 84 8 11 14 347 0 0 -4 224 79 4 20 2200 35 33 58 86 4 8 13 334 0 0 -4 224 79 4 20 2300 35 32 58 89 6 7 9 335 0 0 -4 224 79 4 21 0 35 32 55 89 8 9 11 329 0 0 -4 224 79 4 21 100 35 31 66 91 9 11 13 335 0 0 -5 224 79 Total Prec. 4540' ------------------------------------------------------------------------ 0 Page 1 4-21-2021 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 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 4 20 500 30 31 -0 121 -109 110 4 20 600 33 34 -0 121 0 110 4 20 700 35 37 -0 121 -0 110 4 20 800 37 43 -0 121 0 110 4 20 900 40 44 -0 121 0 110 4 20 1000 43 46 -0 120 -115 109 4 20 1100 45 44 -0 120 0 109 4 20 1200 46 46 -0 119 -0 109 4 20 1300 42 49 -0 120 -117 108 4 20 1400 43 44 -0 120 0 108 4 20 1500 45 45 -0 120 -0 108 4 20 1600 43 44 -0 121 -3 108 4 20 1700 42 44 -0 121 -2 108 4 20 1800 39 41 -0 121 -2 108 4 20 1900 37 40 -0 120 0 108 4 20 2000 36 38 -0 120 0 108 4 20 2100 35 35 -0 121 0 108 4 20 2200 35 36 -0 121 0 108 4 20 2300 35 34 -0 121 0 109 4 21 0 34 38 -0 120 0 108 4 21 100 34 38 -0 120 0 108 Page 1 4-21-2021 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 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 4 20 500 30 31 46 43 12 15 86 30 0 0 161 4 20 600 33 32 41 42 11 15 84 32 0 0 161 4 20 700 34 33 43 39 9 13 88 38 0 0 161 4 20 800 33 34 47 39 10 13 88 37 0 0 161 4 20 900 36 36 49 41 9 12 86 40 0 0 161 4 20 1000 41 40 43 39 5 12 86 53 0 0 161 4 20 1100 43 42 43 38 4 10 84 60 0 0 160 4 20 1200 44 44 42 37 4 11 92 60 0 0 160 4 20 1300 48 46 37 34 3 11 66 62 0 0 160 4 20 1400 45 45 41 35 4 8 71 55 0 0 159 4 20 1500 44 45 40 34 3 7 71 54 0 0 159 4 20 1600 49 46 37 33 4 10 346 63 0 0 159 4 20 1700 46 44 39 36 5 10 272 48 0 0 160 4 20 1800 44 44 36 35 8 12 275 44 0 0 159 4 20 1900 40 41 44 38 6 13 325 41 0 0 160 4 20 2000 38 41 60 56 6 10 261 40 0 0 159 4 20 2100 37 40 65 59 6 10 274 39 0 0 160 4 20 2200 37 39 65 60 3 9 322 37 0 0 160 4 20 2300 37 38 66 54 6 10 353 36 0 0 160 4 21 0 38 38 55 52 6 10 3 36 0 0 160 4 21 100 37 38 55 53 8 10 333 35 0 0 160 Total Prec. 5500' ------------------------------------------------------------------------ 0 Page 1 4-21-2021 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 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 4 20 500 33 33 71 66 0 4 46 91 4 20 600 38 36 59 50 0 4 39 91 4 20 700 37 38 63 51 2 6 12 90 4 20 800 42 43 48 42 0 4 72 90 4 20 900 45 40 43 48 1 6 60 90 4 20 1000 46 40 42 48 1 6 72 90 4 20 1100 44 41 41 42 1 4 61 90 4 20 1200 48 44 34 37 1 5 56 88 4 20 1300 42 41 46 43 5 11 355 90 4 20 1400 49 43 35 39 4 9 18 89 4 20 1500 44 45 42 38 5 12 357 89 4 20 1600 45 45 40 37 5 9 14 89 4 20 1700 44 43 38 35 5 9 15 89 4 20 1800 42 42 46 41 4 11 23 89 4 20 1900 36 37 70 63 7 11 6 90 4 20 2000 34 35 75 68 7 13 11 90 4 20 2100 33 34 79 71 3 11 22 90 4 20 2200 34 33 68 68 2 7 26 89 4 20 2300 34 34 50 53 3 6 16 89 4 21 0 34 34 52 50 3 6 4 89 4 21 100 33 35 60 57 3 8 20 90 Page 1 4-21-2021 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 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 4 20 500 34 48 3 6 45 0 0 0 184 3 4 20 600 34 48 3 5 61 0 0 0 184 23 4 20 700 38 40 2 7 69 0 0 0 184 284 4 20 800 41 36 4 8 95 0 0 -0 183 503 4 20 900 43 35 5 10 101 0 0 -0 183 715 4 20 1000 44 35 3 9 95 0 0 0 183 719 4 20 1100 46 34 3 8 77 0 0 0 183 992 4 20 1200 48 33 3 7 69 0 0 0 182 1059 4 20 1300 51 30 3 8 63 0 0 -0 182 1070 4 20 1400 51 31 2 5 62 0 0 -0 181 1019 4 20 1500 50 33 3 8 100 0 0 -0 181 338 4 20 1600 50 33 3 8 90 0 0 -0 181 643 4 20 1700 50 32 3 6 95 0 0 -0 181 321 4 20 1800 46 35 1 6 81 0 0 0 182 183 4 20 1900 42 56 2 8 32 0 0 0 182 16 4 20 2000 40 62 0 3 313 0 0 0 182 0 4 20 2100 39 53 1 4 7 0 0 0 182 0 4 20 2200 39 51 3 5 40 0 0 0 182 0 4 20 2300 37 55 2 4 19 0 0 0 182 0 4 21 0 37 53 1 2 60 0 0 0 182 0 4 21 100 37 53 0 2 49 0 0 0 182 0 Total Prec. 5400' ------------------------------------------------------ 0 Page 1 4-21-2021 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 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 4 20 500 18 76 0 0 2 307 0 4 20 600 19 67 0 2 11 286 15 4 20 700 20 68 0 8 16 245 143 4 20 800 23 69 0 10 16 243 377 4 20 900 23 77 0 6 13 214 575 4 20 1000 23 79 0 9 14 230 745 4 20 1100 25 79 3 8 13 225 895 4 20 1200 25 78 0 6 12 224 999 4 20 1300 24 77 0 7 12 236 1026 4 20 1400 28 68 0 3 10 252 1008 4 20 1500 25 70 0 5 11 219 889 4 20 1600 25 73 0 5 11 231 710 4 20 1700 25 73 0 2 6 216 457 4 20 1800 22 76 1 4 6 280 180 4 20 1900 21 76 5 8 12 278 16 4 20 2000 20 77 0 3 8 273 1 4 20 2100 21 71 0 0 7 264 0 4 20 2200 25 35 0 9 16 80 0 4 20 2300 22 42 0 12 22 68 0 4 21 0 22 43 0 12 23 63 0 4 21 100 21 48 10 19 24 73 0 Page 1 4-21-2021 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 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 4 20 500 29 28 49 69 16 19 22 107 0 0 128 4 20 600 30 29 46 65 16 19 21 111 0 0 128 4 20 700 34 34 44 51 15 18 23 112 0 0 128 4 20 800 38 39 35 40 13 18 23 107 0 0 128 4 20 900 40 40 39 40 13 19 25 107 0 0 127 4 20 1000 45 44 32 33 12 16 22 104 0 0 127 4 20 1100 46 45 39 34 9 15 20 104 0 0 126 4 20 1200 48 47 37 32 5 11 17 101 0 0 126 4 20 1300 47 49 37 32 6 11 18 106 0 0 126 4 20 1400 47 49 37 32 8 13 18 107 0 0 126 4 20 1500 47 50 40 31 8 13 18 107 0 0 126 4 20 1600 45 51 38 30 4 9 14 102 0 0 127 4 20 1700 43 50 44 31 7 11 16 96 0 0 126 4 20 1800 40 49 47 37 8 11 14 104 0 0 127 4 20 1900 37 43 51 48 10 12 17 108 0 0 127 4 20 2000 36 38 53 60 11 13 16 110 0 0 127 4 20 2100 35 35 55 65 11 14 16 109 0 0 127 4 20 2200 34 34 55 68 5 9 13 109 0 0 127 4 20 2300 34 33 54 66 3 6 8 111 0 0 127 4 21 0 34 32 54 69 5 6 8 91 0 0 127 4 21 100 35 32 55 71 4 5 6 83 0 0 127 Total Prec. 5800' ------------------------------------------------------------------------ 0 Page 1 4-21-2021 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 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 4 20 500 85 0 1023 1573 -7999 0 0 -4 -7999 290 4 20 600 70 0 1023 1571 -7999 0 0 -6 -7999 326 4 20 700 61 0 1023 1567 -7999 0 0 -5 -7999 355 4 20 800 29 2 1023 1553 -7999 0 0 -11 -7999 42 4 20 900 30 2 1023 1550 -7999 0 0 -9 -7999 239 4 20 1000 27 3 1023 1555 -7999 0 0 -10 -7999 194 4 20 1100 30 4 1023 1553 -7999 0 0 -7 -7999 154 4 20 1200 27 3 1022 1552 -7999 0 0 -8 -7999 194 4 20 1300 28 3 1022 1558 -7999 0 0 -7 -7999 202 4 20 1400 27 4 1022 1561 -7999 0 0 -7 -7999 197 4 20 1500 26 4 1021 1558 -7999 0 0 -7 -7999 231 4 20 1600 28 3 1021 1560 -7999 0 0 -6 -7999 138 4 20 1700 31 3 1021 1562 -7999 0 0 -6 -7999 189 4 20 1800 56 2 1021 1577 -7999 0 0 -3 -7999 316 4 20 1900 76 0 1021 1583 -7999 0 0 -1 -7999 350 4 20 2000 82 0 1021 1586 -7999 0 0 -2 -7999 2 4 20 2100 89 0 1021 1588 -7999 0 0 -1 -7999 350 4 20 2200 89 0 1021 1590 -7999 0 0 -2 -7999 351 4 20 2300 91 0 1021 1591 -7999 0 0 -2 -7999 39 4 21 0 90 0 1021 1592 -7999 0 0 -2 -7999 19 4 21 100 92 0 1020 1594 -7999 0 0 -3 -7999 19 Total Prec 4320' ------------------------------------------------------ 0 Page 1 4-21-2021 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 4-21-2021 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 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 4 20 500 36 30 -0 6 17 301 0 0 -0 164 4 20 600 35 31 -0 5 16 306 0 0 -0 164 4 20 700 35 36 -0 7 19 302 0 0 -0 163 4 20 800 35 42 -0 8 25 309 0 0 -0 163 4 20 900 36 40 -0 8 25 303 0 0 -0 163 4 20 1000 37 40 -0 7 20 298 0 0 -0 163 4 20 1100 39 43 -0 6 21 298 0 0 -0 163 4 20 1200 39 39 -0 4 14 300 0 0 -0 163 4 20 1300 41 39 -0 5 15 301 0 0 -0 163 4 20 1400 40 39 -0 6 16 304 0 0 -0 163 4 20 1500 41 39 -0 6 21 302 0 0 -0 162 4 20 1600 43 36 -0 7 19 295 0 0 -0 162 4 20 1700 42 35 -0 5 17 292 0 0 -0 162 4 20 1800 39 44 -0 4 13 300 0 0 -0 162 4 20 1900 38 47 -0 4 13 303 0 0 -0 162 4 20 2000 37 46 -0 0 8 295 0 0 -0 162 4 20 2100 36 46 -0 4 12 293 0 0 -0 162 4 20 2200 38 48 -0 6 21 292 0 0 -0 162 4 20 2300 35 52 -0 3 23 189 0 0 -0 162 4 21 0 36 48 -0 2 10 182 0 0 -0 162 4 21 100 36 50 -0 4 16 180 0 0 -0 162 Total Prec. 5880' ------------------------------------------------------------ 0 Page 1 4-21-2021 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 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 4 20 500 32 35 19 33 41 227 4 20 600 32 36 21 35 43 220 4 20 700 33 38 26 34 45 -7999 4 20 800 34 38 21 33 41 190 4 20 900 35 38 17 27 37 191 4 20 1000 34 47 16 25 34 189 4 20 1100 35 46 4 23 35 178 4 20 1200 36 51 0 17 33 61 4 20 1300 37 45 0 10 29 25 4 20 1400 36 47 2 14 32 168 4 20 1500 38 47 0 11 30 48 4 20 1600 40 43 0 5 19 269 4 20 1700 38 46 0 4 15 336 4 20 1800 37 51 0 6 21 247 4 20 1900 35 54 0 3 12 223 4 20 2000 33 56 0 1 7 210 4 20 2100 33 63 0 3 22 212 4 20 2200 33 60 0 5 13 230 4 20 2300 32 61 0 4 14 246 4 21 0 31 61 0 3 9 193 Page 1 4-21-2021 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 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 4 20 500 28 35 37 31 23 33 40 0 0 0 131 1020 4 20 600 28 35 41 34 23 34 79 0 0 0 131 1020 4 20 700 29 36 44 35 23 35 16 0 0 0 131 1020 4 20 800 30 38 45 34 21 30 -56 0 0 0 131 1020 4 20 900 31 39 44 34 20 30 28 0 0 0 131 1020 4 20 1000 32 40 44 32 18 29 123 0 0 0 131 1020 4 20 1100 33 41 44 34 19 30 47 0 0 0 130 1021 4 20 1200 34 43 45 31 17 28 42 0 0 0 130 1020 4 20 1300 36 44 41 33 16 26 58 0 0 0 130 1020 4 20 1400 36 44 42 32 14 22 50 0 0 0 129 1020 4 20 1500 36 44 43 36 14 23 28 0 0 0 129 1020 4 20 1600 36 43 45 34 13 22 31 0 0 0 129 1019 4 20 1700 35 42 43 36 11 20 63 0 0 0 130 1019 4 20 1800 33 41 47 40 10 16 19 0 0 0 129 1019 4 20 1900 32 39 49 44 13 20 13 0 0 0 129 1019 4 20 2000 32 37 48 50 16 22 40 0 0 0 129 1019 4 20 2100 31 38 49 41 15 23 46 0 0 0 130 1019 4 20 2200 32 39 49 41 18 24 14 0 0 0 129 1019 4 20 2300 33 39 48 39 21 33 -27 0 0 0 129 1018 4 21 0 33 39 45 41 22 31 62 0 0 0 129 1018 4 21 100 32 39 46 40 22 31 11 0 0 0 129 1018 Total Prec. 5380' ------------------------------------------------------------------ 0 Page 1 4-21-2021 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 20 200 30 40 15 24 39 300 4 20 300 30 46 15 24 39 307 4 20 400 29 28 16 28 42 303 4 20 500 27 35 18 29 42 308 4 20 600 26 44 19 31 44 304 4 20 700 28 45 20 31 43 310 4 20 800 27 49 19 31 48 300 4 20 900 28 53 19 31 44 288 4 20 1000 29 52 16 29 40 268 4 20 1100 29 52 17 30 44 267 4 20 1200 30 51 18 30 45 258 4 20 1300 30 50 11 24 39 242 4 20 1400 31 52 11 21 32 245 4 20 1500 32 51 6 16 31 285 4 20 1600 32 48 6 15 23 299 4 20 1700 31 50 6 13 22 301 4 20 1800 31 53 7 15 25 259 4 20 1900 30 55 6 16 31 262 4 20 2000 30 53 10 19 31 282 4 20 2100 29 57 12 20 32 277 4 20 2200 31 53 11 24 36 299 4 20 2300 32 53 16 30 40 310 4 21 0 31 49 18 30 42 303 4 21 100 31 48 15 27 39 300 Page 1 4-21-2021 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 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 4 20 500 33 39 56 38 12 23 33 0 0 0 74 4 20 600 33 39 55 45 10 23 40 0 0 0 74 4 20 700 35 42 54 39 6 18 37 0 0 0 74 4 20 800 36 43 55 44 6 15 37 0 0 0 74 4 20 900 38 46 54 37 7 15 34 0 0 0 74 4 20 1000 39 49 54 29 4 16 37 0 0 0 73 4 20 1100 40 52 52 28 5 13 36 0 0 0 73 4 20 1200 41 52 51 30 5 14 31 0 0 0 73 4 20 1300 42 52 51 30 4 13 29 0 0 0 72 4 20 1400 42 51 50 30 4 12 28 0 0 0 72 4 20 1500 42 51 50 34 4 13 31 0 0 0 72 4 20 1600 42 48 50 44 3 11 28 0 0 0 72 4 20 1700 42 46 50 46 4 12 30 0 0 0 72 4 20 1800 41 42 51 63 4 12 25 0 0 0 72 4 20 1900 39 37 54 76 4 14 28 64 0 0 72 4 20 2000 38 37 57 75 6 15 25 94 0 0 72 4 20 2100 38 36 56 76 8 17 28 93 0 0 72 4 20 2200 37 37 57 68 7 18 28 90 0 0 72 4 20 2300 38 35 53 80 4 13 28 91 0 0 72 4 21 0 38 33 49 81 4 8 23 90 0 0 72 4 21 100 37 32 54 80 5 12 23 88 0 0 72 Total Prec. 3660' ------------------------------------------------------------------------ 0 Page 1