4-17-2021 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 16 500 46 40 -0 0 3 117 0 0 112 4 16 600 47 35 -0 0 2 112 0 0 112 4 16 700 50 30 -0 0 2 95 0 0 112 4 16 800 55 29 -0 0 0 81 0 0 112 4 16 900 55 30 -0 0 0 59 0 0 111 4 16 1000 54 31 -0 0 4 53 0 0 112 4 16 1100 55 32 -0 0 1 72 0 0 111 4 16 1200 55 36 -0 0 4 60 0 0 111 4 16 1300 55 36 -0 1 5 60 0 0 110 4 16 1400 55 29 -0 1 6 61 0 0 110 4 16 1500 54 31 -0 1 7 48 0 0 110 4 16 1600 53 33 -0 2 6 51 0 0 110 4 16 1700 51 34 0 4 7 47 0 0 110 4 16 1800 50 34 -0 2 7 39 0 0 110 4 16 1900 48 32 -0 0 5 49 0 0 110 4 16 2000 48 30 -0 0 3 71 0 0 110 4 16 2100 49 28 -0 2 7 114 0 0 110 4 16 2200 48 29 2 11 15 159 0 0 110 4 16 2300 49 31 4 11 15 159 0 0 110 4 17 0 49 29 5 11 17 150 0 0 110 4 17 100 49 36 6 12 17 145 0 0 110 4 17 200 49 38 8 13 17 151 0 0 110 4 17 300 49 39 8 12 15 148 0 0 110 4 17 400 49 40 6 10 13 149 0 0 110 Total Prec. 5250' ------------------------------------------------------------ 0 Page 1 4-17-2021 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 16 500 51 46 18 31 0 0 4 39 0 0 0 191 4 16 600 53 46 18 30 0 0 3 35 0 0 0 191 4 16 700 54 49 17 30 0 3 6 227 0 0 -0 191 4 16 800 54 53 18 23 4 6 8 194 0 0 0 191 4 16 900 54 55 20 21 6 8 11 167 0 0 -0 191 4 16 1000 54 56 23 22 7 9 11 170 0 0 -0 190 4 16 1100 54 56 25 26 7 10 13 170 0 0 -0 190 4 16 1200 54 56 29 27 7 9 13 175 0 0 -0 189 4 16 1300 55 57 27 27 5 9 12 172 0 0 -0 189 4 16 1400 56 58 25 25 4 8 11 171 0 0 -0 188 4 16 1500 57 58 23 26 1 6 10 170 0 0 -0 188 4 16 1600 60 56 20 27 0 4 8 160 0 0 -0 188 4 16 1700 58 53 24 33 0 0 3 324 0 0 -0 188 4 16 1800 56 50 30 40 0 0 2 72 0 0 -0 189 4 16 1900 52 49 31 42 0 2 5 35 0 0 -0 189 4 16 2000 52 48 32 42 0 0 2 53 0 0 0 189 4 16 2100 52 48 29 40 0 0 0 36 0 0 -0 189 4 16 2200 53 47 27 39 0 0 0 57 0 0 0 189 4 16 2300 53 48 25 38 0 0 0 67 0 0 0 189 4 17 0 52 48 25 37 0 0 0 67 0 0 0 189 4 17 100 52 48 24 36 0 0 0 67 0 0 0 189 4 17 200 53 48 24 35 0 0 0 67 0 0 0 189 4 17 300 53 47 22 36 0 0 0 67 0 0 0 189 4 17 400 53 47 23 36 0 0 0 67 0 0 0 189 Total Prec. 4210' ------------------------------------------------------------------------ 0 Page 1 4-17-2021 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 16 500 40 26 32 74 0 0 340 56 0 0 89 4 16 600 43 28 29 81 1 4 28 57 0 0 88 4 16 700 42 31 32 62 2 4 21 63 0 0 88 4 16 800 46 38 31 41 1 5 51 66 0 0 88 4 16 900 42 43 34 37 2 8 36 71 0 0 88 4 16 1000 42 46 40 34 7 10 19 85 .01 .01 88 4 16 1100 45 51 34 26 5 9 25 88 0 .01 87 4 16 1200 45 53 37 24 7 11 29 95 0 .01 86 4 16 1300 48 55 29 24 7 11 23 98 0 .01 86 4 16 1400 50 54 28 21 6 13 28 99 0 .01 86 4 16 1500 50 55 29 25 6 13 29 100 0 .01 86 4 16 1600 49 53 29 26 1 9 22 96 0 .01 86 4 16 1700 50 49 32 35 4 8 18 82 0 .01 86 4 16 1800 46 42 36 50 5 8 231 78 0 .01 86 4 16 1900 45 36 35 64 7 9 252 71 0 .01 87 4 16 2000 45 32 34 71 6 8 259 64 0 .01 87 4 16 2100 46 31 34 75 4 6 251 62 0 .01 87 4 16 2200 44 30 35 77 2 8 8 60 0 .01 87 4 16 2300 45 30 33 79 2 7 10 59 0 .01 87 4 17 0 45 29 30 79 2 8 348 59 0 .01 87 4 17 100 45 28 29 80 2 5 304 59 0 .01 87 4 17 200 44 28 30 79 1 5 343 57 0 .01 88 4 17 300 45 27 28 81 0 4 321 56 0 .01 87 4 17 400 45 27 29 79 4 9 211 58 0 .01 87 Total Prec. 5450' ------------------------------------------------------------------------ .01 Page 1 4-17-2021 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 16 500 31 83 0 0 0 233 0 0 0 -0 4 16 600 29 87 10 0 0 306 0 0 0 -0 4 16 700 36 77 37 0 0 317 0 0 0 -0 4 16 800 47 47 168 0 2 326 0 0 0 -0 4 16 900 55 31 124 0 3 352 0 0 0 -0 4 16 1000 60 27 203 0 4 152 0 0 0 -0 4 16 1100 64 21 68 1 5 133 0 0 0 -0 4 16 1200 68 19 873 1 4 150 0 0 0 -0 4 16 1300 70 17 877 2 6 128 0 0 0 -1 4 16 1400 72 16 806 0 4 182 0 0 -0 -2 4 16 1500 71 16 669 2 7 110 0 0 0 -1 4 16 1600 71 18 52 0 3 174 0 0 0 -0 4 16 1700 67 26 57 0 1 167 0 0 0 -0 4 16 1800 61 29 11 0 4 257 0 0 0 -0 4 16 1900 56 33 2 2 5 303 0 0 0 -0 4 16 2000 53 36 0 0 4 277 0 0 0 -0 4 16 2100 51 41 0 3 6 304 0 0 0 -0 4 16 2200 48 45 0 3 6 313 0 0 0 -0 4 16 2300 48 45 0 3 6 295 0 0 0 -0 4 17 0 47 46 0 2 5 291 0 0 0 -0 4 17 100 45 52 0 2 5 298 0 0 0 -0 4 17 200 41 64 0 0 3 320 0 0 0 -0 4 17 300 37 77 0 0 3 43 0 0 0 -0 4 17 400 35 82 0 0 2 290 0 0 0 -0 Total Prec. 2170' ------------------------------------------------------------ 0 Page 1 4-17-2021 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 16 500 43 45 2 4 8 95 4 16 600 45 44 3 6 10 90 4 16 700 49 52 3 5 8 97 4 16 800 50 58 0 4 7 97 4 16 900 50 46 0 3 7 103 4 16 1000 51 46 0 3 10 89 4 16 1100 52 47 0 4 10 67 4 16 1200 53 48 0 4 11 60 4 16 1300 52 50 0 5 11 44 4 16 1400 56 50 0 5 12 71 4 16 1500 54 49 0 4 14 61 4 16 1600 55 50 0 3 9 55 4 16 1700 53 49 0 4 9 50 4 16 1800 52 50 1 5 10 43 4 16 1900 50 48 0 4 8 73 4 16 2000 47 46 0 3 6 85 4 16 2100 46 45 0 4 7 101 4 16 2200 48 46 0 5 10 73 4 16 2300 47 46 0 2 8 114 4 17 0 45 47 0 4 8 99 4 17 100 46 44 0 4 10 94 4 17 200 46 45 0 0 5 159 4 17 300 44 45 0 2 6 127 4 17 400 44 45 2 4 6 111 Page 1 4-17-2021 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 16 500 35 77 0 0 0 117 1023 4 16 600 35 77 0 0 0 117 1023 4 16 700 35 79 0 0 0 117 1024 4 16 800 37 72 0 0 0 117 1024 4 16 900 45 52 0 0 0 117 1024 4 16 1000 48 44 0 0 0 116 1024 4 16 1100 49 43 0 0 0 116 1024 4 16 1200 50 42 0 0 0 115 1024 4 16 1300 52 39 0 0 0 115 1024 4 16 1400 53 37 0 0 0 115 1024 4 16 1500 54 34 0 0 0 115 1024 4 16 1600 52 38 0 0 0 116 1023 4 16 1700 51 40 0 0 0 115 1023 4 16 1800 47 49 0 0 0 115 1023 4 16 1900 40 67 0 0 0 115 1023 4 16 2000 39 71 0 0 0 115 1023 4 16 2100 38 74 0 0 0 115 1023 4 16 2200 38 74 0 0 0 115 1023 4 16 2300 37 75 0 0 0 115 1023 4 17 0 37 74 0 0 0 115 1024 4 17 100 37 75 0 0 0 115 1023 4 17 200 36 76 0 0 0 115 1023 4 17 300 37 74 0 0 0 115 1023 4 17 400 36 74 0 0 0 115 1023 Total Prec. 3950' ------------------------------------ 0 Page 1 4-17-2021 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 16 500 39 47 0 0 0 138 4 16 600 43 39 0 0 -0 138 4 16 700 44 42 0 0 -0 136 4 16 800 49 35 0 0 -0 136 4 16 900 48 37 0 0 -0 137 4 16 1000 47 38 0 0 -0 137 4 16 1100 48 35 0 0 -0 136 4 16 1200 49 33 0 0 -0 136 4 16 1300 51 31 0 0 -0 135 4 16 1400 51 31 0 0 -0 135 4 16 1500 51 31 0 0 -0 135 4 16 1600 51 30 0 0 -0 135 4 16 1700 51 30 0 0 -0 135 4 16 1800 47 40 0 0 -0 135 4 16 1900 43 48 0 0 -0 135 4 16 2000 43 45 0 0 -0 135 4 16 2100 42 49 0 0 -0 135 4 16 2200 41 50 0 0 0 135 4 16 2300 43 41 0 0 -0 135 4 17 0 42 45 0 0 0 135 4 17 100 41 47 0 0 0 135 4 17 200 43 42 0 0 -0 135 4 17 300 42 45 0 0 0 135 4 17 400 40 50 0 0 0 135 Total Prec. 4800' ------------------------------------ 0 Page 1 4-17-2021 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 16 500 43 38 6 12 177 156 0 4 16 600 42 41 9 15 165 156 0 4 16 700 45 41 5 12 155 156 0 4 16 800 46 38 7 14 149 156 0 4 16 900 51 33 9 17 139 155 0 4 16 1000 52 31 10 17 136 155 0 4 16 1100 53 28 9 17 134 155 0 4 16 1200 54 28 10 19 133 155 0 4 16 1300 54 28 11 19 131 154 -0 4 16 1400 55 27 11 19 132 153 -0 4 16 1500 54 29 11 20 134 153 0 4 16 1600 52 29 10 17 135 153 0 4 16 1700 51 33 9 16 137 154 0 4 16 1800 49 35 8 16 144 154 0 4 16 1900 48 35 8 13 156 154 0 4 16 2000 48 32 6 10 169 154 0 4 16 2100 47 38 6 13 177 154 0 4 16 2200 46 34 7 13 172 153 0 4 16 2300 45 37 9 15 169 154 0 4 17 0 46 32 8 15 173 154 0 4 17 100 48 29 5 11 181 153 0 4 17 200 46 35 4 9 182 153 0 4 17 300 46 35 6 11 177 153 0 4 17 400 46 32 4 9 181 153 0 Page 1 4-17-2021 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 16 500 31 87 0 0 0 8 1023 4 16 600 31 88 0 0 0 8 1023 4 16 700 36 76 0 0 0 9 1024 4 16 800 45 64 0 0 -0 7 1024 4 16 900 55 39 0 0 0 7 1024 4 16 1000 60 33 0 0 -0 7 1023 4 16 1100 62 22 0 0 -0 6 1023 4 16 1200 63 22 0 0 -0 5 1023 4 16 1300 63 22 0 0 0 6 1022 4 16 1400 65 24 0 0 -0 5 1022 4 16 1500 64 24 0 0 -0 5 1021 4 16 1600 59 32 0 0 -0 5 1021 4 16 1700 52 50 0 0 -0 6 1021 4 16 1800 48 60 0 0 0 5 1021 4 16 1900 43 66 0 0 -0 5 1022 4 16 2000 40 69 0 0 -0 5 1022 4 16 2100 38 73 0 0 -0 5 1023 4 16 2200 36 76 0 0 -0 5 1023 4 16 2300 35 79 0 0 0 6 1023 4 17 0 34 81 0 0 0 5 1023 4 17 100 34 83 0 0 0 6 1023 4 17 200 33 85 0 0 0 5 1023 4 17 300 33 85 0 0 0 6 1023 4 17 400 32 87 0 0 -0 6 1023 Total Prec. 2700' ------------------------------------ 0 Page 1 4-17-2021 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 16 500 40 40 10 12 14 86 4 16 600 39 44 8 10 15 81 4 16 700 40 43 9 11 15 93 4 16 800 40 42 9 13 16 97 4 16 900 41 44 4 9 17 142 4 16 1000 41 42 4 7 10 173 4 16 1100 43 40 2 5 9 135 4 16 1200 45 39 0 5 10 112 4 16 1300 46 38 1 5 10 84 4 16 1400 50 32 0 4 12 95 4 16 1500 47 33 0 4 10 109 4 16 1600 50 31 0 5 10 55 4 16 1700 49 31 1 4 7 65 4 16 1800 48 32 0 3 7 113 4 16 1900 46 33 3 4 6 85 4 16 2000 46 34 5 9 12 85 4 16 2100 45 33 6 9 11 87 4 16 2200 46 33 9 12 14 77 4 16 2300 46 32 13 15 18 82 4 17 0 45 34 12 17 19 84 4 17 100 45 32 8 10 12 91 4 17 200 45 36 8 9 10 96 4 17 300 45 34 8 9 11 91 4 17 400 45 33 9 11 13 92 Page 1 4-17-2021 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 16 500 29 94 0 0 0 219 0 0 0 1 4 16 600 30 94 0 0 0 219 0 0 0 1 4 16 700 34 92 0 0 0 219 0 0 0 0 4 16 800 40 77 0 0 2 221 0 0 0 1 4 16 900 48 58 0 0 2 231 0 0 0 1 4 16 1000 57 40 0 0 3 207 0 0 0 0 4 16 1100 63 27 0 0 4 33 0 0 0 0 4 16 1200 67 22 0 0 3 313 0 0 2 0 4 16 1300 69 21 0 1 3 285 0 0 0 -0 4 16 1400 69 19 0 1 5 170 0 0 1 -0 4 16 1500 70 19 0 1 4 286 0 0 3 -0 4 16 1600 70 19 0 0 4 148 0 0 6 -0 4 16 1700 63 40 0 0 3 233 0 0 5 -0 4 16 1800 56 49 0 1 3 248 0 0 3 -0 4 16 1900 51 62 0 1 3 245 0 0 4 -0 4 16 2000 48 67 0 0 2 231 0 0 0 -0 4 16 2100 45 70 0 0 1 239 0 0 0 -0 4 16 2200 42 76 0 0 0 239 0 0 0 -0 4 16 2300 39 81 0 0 0 239 0 0 0 -0 4 17 0 36 86 0 0 0 239 0 0 0 -0 4 17 100 35 89 0 0 0 239 0 0 0 -0 4 17 200 33 91 0 0 0 239 0 0 0 -0 4 17 300 32 93 0 0 0 239 0 0 0 -0 4 17 400 31 94 0 0 0 239 0 0 0 -0 Total Prec. 1930' ------------------------------------------------------------ 0 Page 1 4-17-2021 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 16 500 47 37 32 77 2 4 176 0 0 0 0 13 4 16 600 50 36 32 79 2 6 156 0 0 0 0 12 4 16 700 51 42 33 64 1 5 149 0 0 0 -0 11 4 16 800 50 46 33 56 2 10 139 0 0 0 -0 12 4 16 900 51 53 33 44 3 11 157 0 0 0 -0 11 4 16 1000 53 60 29 36 1 8 195 0 0 0 -0 10 4 16 1100 55 65 27 25 1 7 237 0 0 0 -0 10 4 16 1200 57 68 26 19 2 8 226 0 0 0 -0 10 4 16 1300 57 70 27 18 2 10 242 0 0 0 -0 10 4 16 1400 58 72 26 17 3 11 243 0 0 0 -0 10 4 16 1500 60 73 23 16 3 11 170 0 0 0 -0 9 4 16 1600 61 73 22 16 2 8 126 0 0 0 -0 9 4 16 1700 61 73 22 17 1 7 173 0 0 0 -0 9 4 16 1800 59 66 20 25 2 7 231 0 0 0 -0 9 4 16 1900 54 61 24 33 1 4 159 0 0 0 0 10 4 16 2000 55 56 25 39 0 3 196 0 0 0 0 10 4 16 2100 54 52 24 48 0 2 212 0 0 0 0 10 4 16 2200 52 49 27 53 0 2 222 0 0 0 0 10 4 16 2300 53 47 26 58 0 2 281 0 0 0 0 10 4 17 0 53 45 27 62 1 3 274 0 0 0 0 10 4 17 100 53 44 27 64 1 3 273 0 0 0 0 11 4 17 200 52 42 29 66 3 6 296 0 0 0 0 10 4 17 300 52 41 28 71 2 6 6 0 0 0 0 10 4 17 400 51 40 29 74 2 3 351 0 0 0 0 10 Total Prec. 1190 ------------------------------------------------------------------ 0 Page 1 4-17-2021 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 16 500 12.7 48 71 0 4 16 600 12.7 48 49 3 4 16 700 12.7 48 64 6 4 16 800 12.8 48 112 7 4 16 900 13.4 50 133 6 4 16 1000 13.6 52 151 7 4 16 1100 13.6 53 142 7 4 16 1200 13.4 54 155 7 4 16 1300 13.2 55 150 8 4 16 1400 13.1 54 121 9 4 16 1500 13.2 57 148 10 4 16 1600 13.4 56 135 10 4 16 1700 13.6 57 133 10 4 16 1800 14.1 55 94 11 4 16 1900 13.4 53 116 8 4 16 2000 12.9 52 122 0 4 16 2100 12.8 51 77 0 4 16 2200 12.8 50 65 0 4 16 2300 12.8 50 105 0 4 17 0 12.7 49 152 0 4 17 100 12.7 49 169 0 4 17 200 12.7 49 119 0 4 17 300 12.7 49 125 0 4 17 400 12.7 49 161 0 Page 1 4-17-2021 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 16 500 44 45 35 83 35 8 16 89 0 0 1 121 0 185 0 4 16 600 43 46 35 83 39 5 16 105 0 0 1 121 0 184 -0 4 16 700 44 46 35 83 37 9 17 90 0 0 1 121 0 184 -0 4 16 800 45 46 38 81 34 7 16 85 0 0 1 121 0 184 -0 4 16 900 45 45 46 61 37 5 11 113 0 0 1 121 0 184 -0 4 16 1000 44 45 53 40 38 4 8 171 0 0 0 120 0 184 4 4 16 1100 44 48 58 32 38 4 13 84 0 0 1 120 0 184 5 4 16 1200 46 51 57 32 35 4 12 50 0 0 1 119 0 183 5 4 16 1300 47 52 58 35 33 6 23 42 0 0 1 119 0 183 1 4 16 1400 49 53 56 37 29 6 18 71 0 0 1 119 0 183 0 4 16 1500 51 53 53 41 34 4 10 188 0 0 1 119 0 183 0 4 16 1600 50 52 50 46 29 3 5 164 0 0 1 119 0 183 2 4 16 1700 51 48 46 57 30 3 7 137 0 0 1 120 0 183 0 4 16 1800 49 46 42 65 30 3 6 128 0 0 1 120 0 183 0 4 16 1900 48 47 41 67 31 3 11 122 0 0 1 120 0 183 0 4 16 2000 47 47 39 72 30 6 12 90 0 0 1 120 0 183 0 4 16 2100 47 47 39 71 29 9 13 99 0 0 1 120 0 183 0 4 16 2200 46 45 38 74 30 5 16 135 0 0 1 120 0 183 0 4 16 2300 46 46 38 74 33 3 7 168 0 0 1 120 0 183 0 4 17 0 46 45 37 76 32 5 11 145 0 0 1 120 0 183 0 4 17 100 46 47 37 76 31 6 16 148 0 0 1 120 0 183 0 4 17 200 46 50 36 79 30 8 18 93 0 0 1 120 0 182 0 4 17 300 46 51 36 79 30 8 18 96 0 0 1 120 0 182 0 4 17 400 46 50 36 79 30 9 20 136 0 0 1 120 0 182 0 Total Prec. 3100' ------------------------------------------------------------------------ 0 Page 1 4-17-2021 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 16 500 48 44 33 84 10 16 88 0 0 -0 108 1025 .013 .013 32 4 16 600 46 46 32 89 12 15 104 0 0 -0 108 1025 .013 .026 32 4 16 700 49 45 35 82 10 13 81 0 0 -0 108 1025 .012 .038 32 4 16 800 50 46 48 53 8 11 88 0 0 -0 107 1026 .011 .049 32 4 16 900 49 48 62 30 11 14 125 0 0 -0 106 1025 .011 .06 32 4 16 1000 48 51 62 27 11 17 112 0 0 -0 1 1025 .002 .062 32 4 16 1100 50 56 59 27 11 17 114 0 0 -0 103 1025 .007 .069 32 4 16 1200 54 57 62 25 8 15 128 0 0 -0 103 1025 .007 .076 32 4 16 1300 56 59 62 26 8 16 135 0 0 -0 102 1024 .012 .088 32 4 16 1400 58 59 63 24 9 15 144 0 0 -0 102 1024 .015 .103 32 4 16 1500 58 59 64 24 9 14 138 0 0 -0 102 1023 .016 .119 32 4 16 1600 58 60 63 25 8 14 141 0 0 -0 102 1023 .016 .135 32 4 16 1700 59 60 56 35 8 12 135 0 0 -0 101 1023 .016 .151 32 4 16 1800 58 59 48 48 6 11 133 0 0 0 102 1023 .016 .167 32 4 16 1900 57 55 42 65 5 7 91 0 0 0 102 1024 .015 .182 32 4 16 2000 57 54 39 69 2 5 48 0 0 -0 102 1024 .015 .197 32 4 16 2100 56 53 38 69 3 7 57 0 0 0 102 1024 .014 .211 32 4 16 2200 55 52 37 72 4 9 78 0 0 -0 102 1024 .014 .225 32 4 16 2300 55 52 36 74 6 10 92 0 0 -0 102 1025 .014 .239 32 4 17 0 53 51 35 79 6 10 69 0 0 0 102 1025 .014 .253 32 4 17 100 52 49 35 80 6 10 107 0 0 -0 102 1025 .014 .267 32 4 17 200 52 47 34 83 8 12 107 0 0 -0 102 1025 .014 .281 32 4 17 300 48 47 34 83 12 15 106 0 0 -0 102 1025 .013 .294 32 4 17 400 48 47 33 88 15 18 107 0 0 -0 102 1025 .013 .307 32 Total Lysim Prec. Total 3010' 3010' ------------------------------------------------------------------------------------------------ 0 .307 Page 1 4-17-2021 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 16 500 40 46 38 0 0 0 0 1024 4 16 600 39 46 38 0 0 0 1 1024 4 16 700 53 30 61 0 0 -0 1 1025 4 16 800 52 29 66 0 0 -0 0 1025 4 16 900 52 29 68 0 0 -0 1 1025 4 16 1000 54 27 70 0 0 0 1 1025 4 16 1100 55 22 69 0 0 0 0 1025 4 16 1200 55 20 66 0 0 -0 0 1025 4 16 1300 58 21 70 0 0 -0 0 1025 4 16 1400 58 20 69 0 0 -0 -0 1025 4 16 1500 59 20 72 0 0 0 0 1024 4 16 1600 57 22 67 0 0 0 1 1024 4 16 1700 57 21 59 0 0 0 0 1024 4 16 1800 55 24 55 0 0 -0 0 1024 4 16 1900 47 35 47 0 0 0 0 1024 4 16 2000 44 41 43 0 0 0 0 1024 4 16 2100 43 39 42 0 0 0 0 1024 4 16 2200 43 39 42 0 0 0 0 1024 4 16 2300 42 42 39 0 0 0 0 1024 4 17 0 44 36 40 0 0 0 0 1024 4 17 100 43 37 40 0 0 0 0 1024 4 17 200 42 40 40 0 0 0 0 1024 4 17 300 41 40 38 0 0 0 0 1024 4 17 400 42 40 39 0 0 0 0 1024 Total Prec. 4100' ------------------------------------------ 0 Page 1 4-17-2021 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 16 500 34 38 40 50 69 8 12 87 0 0 1 34 4 16 600 35 39 39 47 64 12 17 70 0 0 1 34 4 16 700 36 41 41 49 58 12 21 57 0 0 1 34 4 16 800 38 44 48 44 48 11 18 57 0 0 1 33 4 16 900 38 45 49 42 44 14 24 42 0 0 1 33 4 16 1000 38 45 49 42 45 19 30 46 0 0 1 33 4 16 1100 38 45 49 43 46 20 29 41 0 0 1 33 4 16 1200 39 46 50 44 45 20 34 38 0 0 1 33 4 16 1300 39 47 50 44 45 32 48 43 0 0 1 33 4 16 1400 40 48 52 43 45 35 47 47 0 0 1 33 4 16 1500 41 49 53 42 44 28 43 43 0 0 1 33 4 16 1600 42 48 54 42 47 25 36 40 0 0 1 32 4 16 1700 42 46 51 39 51 24 34 43 0 0 1 32 4 16 1800 41 42 45 40 62 21 28 41 0 0 1 32 4 16 1900 40 40 43 41 68 20 30 40 0 0 1 32 4 16 2000 40 39 42 41 71 30 35 43 0 0 1 32 4 16 2100 40 38 42 40 71 27 32 49 0 0 1 32 4 16 2200 40 39 42 39 69 28 31 50 0 0 1 33 4 16 2300 40 39 42 40 69 25 31 57 0 0 1 32 4 17 0 40 38 42 40 71 17 22 65 0 0 1 32 4 17 100 40 38 42 40 71 14 20 71 0 0 1 33 4 17 200 40 38 41 40 69 15 20 72 0 0 1 33 4 17 300 39 38 41 44 70 15 21 74 0 0 1 32 4 17 400 39 38 41 40 73 9 14 80 0 0 1 32 Total Prec. 5160' ------------------------------------------------------------------------ 0 Page 1 4-17-2021 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 16 500 35 32 64 81 9 16 31 95 0 0 -1 224 88 4 16 600 36 32 61 81 11 18 27 87 0 0 -1 224 88 4 16 700 37 33 54 80 11 22 35 84 0 0 -1 224 88 4 16 800 39 42 53 58 12 20 32 92 0 0 -1 221 87 4 16 900 40 46 50 51 4 13 32 107 0 0 -2 219 87 4 16 1000 40 50 49 32 3 12 25 79 0 0 -1 212 87 4 16 1100 40 52 50 28 5 13 25 71 0 0 -2 210 87 4 16 1200 41 53 48 27 8 19 32 67 0 0 -2 211 87 4 16 1300 41 53 44 26 8 20 39 66 0 0 -2 212 87 4 16 1400 44 54 41 26 7 14 24 55 0 0 -2 212 86 4 16 1500 43 54 39 23 6 14 26 49 0 0 -2 214 86 4 16 1600 48 54 33 24 7 14 22 49 0 0 -2 213 86 4 16 1700 47 47 36 48 5 13 20 62 0 0 -2 215 85 4 16 1800 48 37 35 70 7 14 24 74 0 0 -2 222 86 4 16 1900 41 35 49 75 8 16 25 94 0 0 -2 223 86 4 16 2000 38 35 56 74 11 17 28 94 0 0 -2 224 86 4 16 2100 37 34 56 76 11 18 30 100 0 0 -2 224 86 4 16 2200 37 34 54 77 10 18 30 99 0 0 -2 224 86 4 16 2300 37 34 53 77 12 20 40 94 0 0 -2 224 86 4 17 0 37 35 54 72 10 20 64 98 0 0 -2 224 86 4 17 100 37 34 54 76 11 20 32 96 0 0 -2 224 86 4 17 200 37 34 54 75 11 23 34 102 0 0 -2 224 86 4 17 300 37 34 53 75 13 24 32 101 0 0 -2 224 86 4 17 400 36 33 53 80 15 24 34 101 0 0 -2 224 86 Total Prec. 4540' ------------------------------------------------------------------------ 0 Page 1 4-17-2021 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 16 500 37 38 -0 129 0 119 4 16 600 37 38 -0 129 0 119 4 16 700 39 42 -0 129 0 119 4 16 800 40 45 -0 129 0 119 4 16 900 43 47 -0 129 0 119 4 16 1000 45 47 -0 128 0 119 4 16 1100 48 47 -0 128 0 118 4 16 1200 47 49 -0 128 0 118 4 16 1300 47 51 -0 128 -0 118 4 16 1400 48 51 -0 127 -232 117 4 16 1500 48 51 -0 127 -0 117 4 16 1600 49 49 -0 127 -117 117 4 16 1700 43 46 -0 128 0 117 4 16 1800 42 40 -0 128 0 117 4 16 1900 42 42 -0 128 0 117 4 16 2000 42 41 -0 128 0 117 4 16 2100 41 42 -0 128 0 117 4 16 2200 41 42 -0 128 0 117 4 16 2300 41 40 -0 128 -112 117 4 17 0 41 40 -0 128 0 117 4 17 100 41 41 -0 128 0 117 4 17 200 40 41 -0 128 0 117 4 17 300 41 39 -0 128 0 117 4 17 400 41 40 -0 128 0 117 Page 1 4-17-2021 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 16 500 38 40 57 42 2 5 69 37 0 0 169 4 16 600 39 40 59 44 2 7 91 38 0 0 169 4 16 700 39 42 56 41 1 3 115 46 0 0 169 4 16 800 40 41 57 41 2 6 43 44 0 0 169 4 16 900 42 42 55 39 2 9 61 45 0 0 169 4 16 1000 44 44 52 35 2 8 60 55 0 0 169 4 16 1100 46 45 48 33 3 9 49 57 0 0 168 4 16 1200 47 46 47 32 4 11 81 56 0 0 168 4 16 1300 49 47 45 29 4 7 87 56 0 0 168 4 16 1400 50 48 45 27 4 10 95 54 0 0 168 4 16 1500 51 48 44 26 3 7 36 59 0 0 167 4 16 1600 52 48 43 26 3 5 46 61 0 0 168 4 16 1700 51 47 43 28 3 6 160 49 0 0 168 4 16 1800 48 47 43 30 2 3 198 47 0 0 167 4 16 1900 43 45 46 33 2 4 60 43 0 0 168 4 16 2000 42 44 47 35 2 4 73 41 0 0 168 4 16 2100 42 44 45 36 2 4 62 41 0 0 168 4 16 2200 42 44 45 34 3 8 82 40 0 0 167 4 16 2300 42 43 44 34 3 8 69 40 0 0 168 4 17 0 41 44 43 33 3 10 85 40 0 0 168 4 17 100 41 43 44 33 2 5 71 40 0 0 167 4 17 200 41 43 44 35 3 5 84 40 0 0 168 4 17 300 41 43 45 35 3 7 91 40 0 0 167 4 17 400 40 43 44 33 3 7 76 39 0 0 167 Total Prec. 5500' ------------------------------------------------------------------------ 0 Page 1 4-17-2021 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 16 500 36 37 46 40 14 19 187 99 4 16 600 36 40 49 38 14 20 187 99 4 16 700 37 43 52 37 16 24 178 98 4 16 800 38 46 48 32 18 24 187 97 4 16 900 40 47 43 30 16 23 178 97 4 16 1000 41 47 43 30 15 22 178 98 4 16 1100 43 49 39 28 13 23 179 97 4 16 1200 44 49 35 26 14 25 177 97 4 16 1300 45 49 32 25 13 22 172 96 4 16 1400 46 48 30 24 12 21 175 96 4 16 1500 47 48 30 25 10 17 177 96 4 16 1600 47 47 28 25 8 18 168 97 4 16 1700 46 48 30 25 9 16 181 97 4 16 1800 42 43 33 31 9 15 164 97 4 16 1900 39 40 41 35 11 18 164 97 4 16 2000 39 39 43 36 16 20 180 98 4 16 2100 38 39 47 40 16 21 185 98 4 16 2200 38 39 46 41 17 23 185 97 4 16 2300 38 39 41 35 16 23 190 97 4 17 0 38 39 41 35 19 30 189 97 4 17 100 38 39 43 36 19 25 185 97 4 17 200 38 38 43 39 19 25 186 97 4 17 300 38 38 44 39 18 22 189 97 4 17 400 37 37 43 41 19 23 188 97 Page 1 4-17-2021 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 16 500 44 33 5 11 28 0 0 0 195 0 4 16 600 42 39 2 7 60 0 0 0 195 21 4 16 700 43 42 5 13 97 0 0 0 195 269 4 16 800 45 36 6 13 105 0 0 0 195 492 4 16 900 47 33 6 16 102 0 0 0 194 699 4 16 1000 49 31 5 13 104 0 0 0 195 864 4 16 1100 48 31 5 16 105 0 0 0 195 978 4 16 1200 51 28 4 15 91 0 0 0 193 1026 4 16 1300 52 26 4 9 88 0 0 -0 193 1007 4 16 1400 55 22 5 13 92 0 0 -0 192 927 4 16 1500 54 22 3 8 59 0 0 -0 192 789 4 16 1600 53 22 3 6 51 0 0 -0 192 607 4 16 1700 53 22 3 6 72 0 0 -0 192 392 4 16 1800 48 27 4 9 104 0 0 0 192 172 4 16 1900 46 30 6 13 98 0 0 0 192 9 4 16 2000 45 30 7 13 102 0 0 0 192 0 4 16 2100 46 29 4 10 99 0 0 0 192 0 4 16 2200 46 30 3 7 106 0 0 0 192 0 4 16 2300 46 28 4 11 104 0 0 0 192 0 4 17 0 46 28 4 11 53 0 0 0 192 0 4 17 100 47 29 5 13 54 0 0 0 192 0 4 17 200 46 31 5 14 62 0 0 0 192 0 4 17 300 46 31 5 11 56 0 0 0 192 0 4 17 400 45 30 5 13 67 0 0 0 192 0 Total Prec. 5400' ------------------------------------------------------ 0 Page 1 4-17-2021 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 16 500 24 49 16 28 38 66 0 4 16 600 24 45 21 35 41 68 13 4 16 700 27 27 16 31 41 68 132 4 16 800 27 21 19 29 38 64 363 4 16 900 29 18 21 34 43 65 563 4 16 1000 30 12 16 27 38 58 739 4 16 1100 31 14 18 26 35 69 873 4 16 1200 31 17 22 28 34 69 956 4 16 1300 32 23 15 24 32 69 980 4 16 1400 34 20 13 22 31 64 941 4 16 1500 32 21 14 24 30 68 842 4 16 1600 32 20 10 20 30 66 687 4 16 1700 31 21 10 18 24 68 491 4 16 1800 31 23 13 20 25 68 174 4 16 1900 30 26 12 20 25 65 15 4 16 2000 31 26 11 18 24 42 0 4 16 2100 31 22 13 19 24 54 0 4 16 2200 31 24 11 18 24 65 0 4 16 2300 30 23 11 17 23 37 0 4 17 0 28 31 8 14 20 65 0 4 17 100 27 35 7 11 16 63 0 4 17 200 26 38 7 10 15 55 0 4 17 300 26 39 6 10 16 62 0 4 17 400 25 39 6 9 13 59 0 Page 1 4-17-2021 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 16 500 36 33 61 73 15 18 22 104 0 0 138 4 16 600 37 33 60 72 18 21 25 104 0 0 138 4 16 700 39 42 55 51 16 20 28 103 0 0 138 4 16 800 43 45 48 44 18 24 33 94 0 0 138 4 16 900 43 47 47 35 21 27 35 97 0 0 137 4 16 1000 47 48 36 31 22 28 37 96 0 0 137 4 16 1100 48 49 34 31 22 29 40 99 0 0 136 4 16 1200 50 50 32 30 20 27 35 100 0 0 136 4 16 1300 49 51 36 28 19 26 35 100 0 0 136 4 16 1400 50 52 33 27 18 25 33 100 0 0 135 4 16 1500 49 53 34 27 13 20 28 99 0 0 135 4 16 1600 48 54 33 27 14 20 27 103 0 0 136 4 16 1700 46 54 39 27 16 20 28 102 0 0 136 4 16 1800 43 54 39 27 14 19 24 97 0 0 136 4 16 1900 42 45 42 45 10 13 22 103 0 0 136 4 16 2000 41 40 43 54 11 14 19 103 0 0 136 4 16 2100 40 38 43 58 13 16 20 100 0 0 136 4 16 2200 40 39 41 52 15 18 22 104 0 0 136 4 16 2300 40 37 41 58 16 19 24 103 0 0 136 4 17 0 40 36 42 61 18 22 25 107 0 0 136 4 17 100 40 35 43 63 16 21 27 107 0 0 136 4 17 200 40 36 42 57 14 18 24 106 0 0 136 4 17 300 40 35 41 62 18 23 28 109 0 0 136 4 17 400 40 35 41 62 19 23 27 110 0 0 136 Total Prec. 5800' ------------------------------------------------------------------------ 0 Page 1 4-17-2021 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 16 500 91 0 1024 1448 -7999 0 0 -1 -7999 170 4 16 600 91 0 1024 1446 -7999 0 0 -1 -7999 354 4 16 700 72 0 1025 1440 -7999 0 0 -1 -7999 5 4 16 800 39 2 1025 1425 -7999 0 0 -4 -7999 260 4 16 900 30 3 1025 1426 -7999 0 0 -7 -7999 96 4 16 1000 26 4 1025 1429 -7999 0 0 -8 -7999 223 4 16 1100 26 6 1025 1428 -7999 0 0 -8 -7999 229 4 16 1200 28 7 1025 1431 -7999 0 0 -7 -7999 194 4 16 1300 24 4 1025 1429 -7999 0 0 -7 -7999 141 4 16 1400 22 4 1025 1433 -7999 0 0 -7 -7999 53 4 16 1500 24 5 1024 1439 -7999 0 0 -7 -7999 186 4 16 1600 25 5 1024 1441 -7999 0 0 -7 -7999 140 4 16 1700 29 4 1024 1456 -7999 0 0 -5 -7999 227 4 16 1800 48 2 1024 1459 -7999 0 0 -3 -7999 231 4 16 1900 69 1 1024 1467 -7999 0 0 -2 -7999 344 4 16 2000 82 0 1025 1470 -7999 0 0 -1 -7999 340 4 16 2100 86 0 1025 1472 -7999 0 0 -0 -7999 344 4 16 2200 85 0 1025 1472 -7999 0 0 -1 -7999 343 4 16 2300 89 0 1025 1472 -7999 0 0 -0 -7999 347 4 17 0 85 0 1025 1472 -7999 0 0 -1 -7999 341 4 17 100 87 0 1025 1473 -7999 0 0 -1 -7999 343 4 17 200 88 0 1025 1473 -7999 0 0 -1 -7999 343 4 17 300 87 0 1025 1474 -7999 0 0 -1 -7999 354 4 17 400 84 0 1025 1474 -7999 0 0 -2 -7999 344 Total Prec 4320' ------------------------------------------------------ 0 Page 1 4-17-2021 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 4-17-2021 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 16 500 40 39 -0 8 32 303 0 0 -0 174 4 16 600 39 42 -0 12 32 298 0 0 -0 175 4 16 700 39 46 -0 9 31 295 0 0 -0 174 4 16 800 39 47 -0 12 37 300 0 0 -0 174 4 16 900 40 40 -0 10 39 304 0 0 -0 174 4 16 1000 41 39 -0 13 40 298 0 0 -0 174 4 16 1100 41 35 -0 16 36 296 0 0 -0 173 4 16 1200 42 41 -0 14 39 302 0 0 42 174 4 16 1300 43 39 -0 10 29 299 0 0 42 174 4 16 1400 44 35 -0 8 25 301 0 0 42 174 4 16 1500 45 31 -0 10 27 301 0 0 42 173 4 16 1600 45 36 -0 10 25 302 0 0 -1 173 4 16 1700 44 33 -0 9 25 305 0 0 -0 172 4 16 1800 44 32 -0 7 21 298 0 0 -0 173 4 16 1900 43 32 -0 8 24 299 0 0 -0 173 4 16 2000 42 34 -0 9 27 307 0 0 -0 173 4 16 2100 42 33 -0 11 31 305 0 0 -0 173 4 16 2200 42 31 -0 11 27 307 0 0 -0 172 4 16 2300 43 30 -0 9 31 306 0 0 -0 173 4 17 0 43 23 -0 9 26 312 0 0 -0 172 4 17 100 44 12 -0 12 29 308 0 0 -0 172 4 17 200 44 19 -0 11 27 303 0 0 -0 172 4 17 300 43 30 -0 10 25 304 0 0 -0 172 4 17 400 45 25 -0 8 20 302 0 0 -0 172 Total Prec. 5880' ------------------------------------------------------------ 0 Page 1 4-17-2021 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 16 500 34 48 36 43 54 -7999 4 16 600 34 44 36 52 68 -7999 4 16 700 34 54 43 56 72 -7999 4 16 800 34 53 41 53 68 -7999 4 16 900 35 48 33 50 69 -7999 4 16 1000 36 47 38 55 73 -7999 4 16 1100 36 48 40 55 73 -7999 4 16 1200 36 48 36 51 67 -7999 4 16 1300 38 45 21 41 61 -7999 4 16 1400 39 32 23 36 53 -7999 4 16 1500 39 32 23 37 51 -7999 4 16 1600 40 26 28 40 54 -7999 4 16 1700 41 21 23 40 52 256 4 16 1800 40 23 30 42 54 255 4 16 1900 42 14 38 44 53 245 4 16 2000 39 23 40 48 58 -7999 4 16 2100 38 24 38 49 58 -7999 4 16 2200 39 17 40 48 57 207 4 16 2300 40 16 34 43 52 188 4 17 0 42 12 34 41 51 178 4 17 100 41 12 33 40 48 174 4 17 200 42 11 28 36 44 -7999 4 17 300 44 13 24 33 40 102 4 17 400 42 20 20 26 37 139 Page 1 4-17-2021 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 16 500 35 42 38 31 26 41 65 0 0 0 140 1021 4 16 600 34 41 45 38 27 44 58 0 0 0 140 1021 4 16 700 34 42 49 39 28 41 74 0 0 0 140 1021 4 16 800 34 43 48 38 31 49 39 0 0 0 140 1021 4 16 900 35 44 45 35 32 47 134 0 0 0 140 1021 4 16 1000 36 44 43 35 32 48 41 0 0 0 140 1021 4 16 1100 37 46 37 29 33 50 36 0 0 0 140 1022 4 16 1200 38 47 44 31 30 48 6 0 0 0 139 1022 4 16 1300 39 47 40 29 26 43 47 0 0 0 139 1022 4 16 1400 40 49 33 27 25 46 -3 0 0 0 139 1022 4 16 1500 40 48 31 25 25 40 38 0 0 0 138 1022 4 16 1600 39 47 37 29 25 40 46 0 0 0 138 1021 4 16 1700 39 47 35 30 23 37 44 0 0 0 139 1022 4 16 1800 38 45 37 32 26 39 34 0 0 0 138 1021 4 16 1900 38 45 35 31 30 41 20 0 0 0 138 1022 4 16 2000 37 44 33 30 29 46 40 0 0 0 138 1022 4 16 2100 37 44 34 30 29 39 14 0 0 0 138 1022 4 16 2200 37 44 33 30 27 38 58 0 0 0 138 1022 4 16 2300 37 44 33 30 23 36 35 0 0 0 138 1022 4 17 0 37 44 32 29 24 35 58 0 0 0 138 1022 4 17 100 38 44 24 31 26 39 -17 0 0 0 138 1022 4 17 200 38 43 28 31 21 33 9 0 0 0 138 1022 4 17 300 37 44 34 30 18 26 37 0 0 0 138 1022 4 17 400 39 41 30 34 16 23 34 0 0 0 138 1023 Total Prec. 5380' ------------------------------------------------------------------ 0 Page 1 4-17-2021 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 16 500 33 43 31 48 68 251 4 16 600 32 46 40 60 79 197 4 16 700 32 53 42 61 83 159 4 16 800 32 57 43 62 81 156 4 16 900 33 51 40 65 89 131 4 16 1000 33 47 43 68 93 126 4 16 1100 34 47 42 65 85 97 4 16 1200 34 53 38 63 86 132 4 16 1300 34 51 32 53 81 136 4 16 1400 35 41 32 48 66 184 4 16 1500 35 43 26 47 63 195 4 16 1600 36 46 27 45 63 214 4 16 1700 35 44 26 42 58 213 4 16 1800 36 41 25 40 54 232 4 16 1900 35 42 26 42 60 280 4 16 2000 35 37 26 43 64 221 4 16 2100 35 39 32 48 69 216 4 16 2200 35 36 28 40 57 278 4 16 2300 36 33 24 36 53 286 4 17 0 37 22 22 34 47 289 4 17 100 38 14 19 40 57 268 4 17 200 38 17 18 31 46 286 4 17 300 37 21 14 26 36 292 4 17 400 38 31 14 24 34 278 Page 1 4-17-2021 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 16 500 37 45 67 41 10 19 35 360 0 0 84 4 16 600 37 43 66 48 11 24 50 360 0 0 84 4 16 700 38 42 64 55 12 23 41 360 0 0 84 4 16 800 39 47 64 44 6 20 38 360 0 0 83 4 16 900 39 51 62 33 6 15 36 360 0 0 83 4 16 1000 40 53 64 30 6 15 41 360 0 0 83 4 16 1100 41 56 62 26 6 18 39 360 0 0 83 4 16 1200 40 55 65 25 7 25 54 360 0 0 83 4 16 1300 40 55 63 28 11 26 49 360 0 0 82 4 16 1400 41 55 59 26 12 25 47 360 0 0 82 4 16 1500 41 54 57 29 9 22 42 360 0 0 82 4 16 1600 42 52 55 30 8 20 44 360 0 0 81 4 16 1700 41 50 53 36 8 23 42 360 0 0 82 4 16 1800 41 45 55 51 7 22 38 0 0 0 82 4 16 1900 41 43 56 56 9 21 41 0 0 0 82 4 16 2000 40 41 56 61 10 21 38 0 0 0 82 4 16 2100 40 43 55 54 11 21 44 0 0 0 82 4 16 2200 40 44 54 42 11 22 40 0 0 0 82 4 16 2300 40 46 53 41 11 23 47 0 0 0 82 4 17 0 40 45 55 41 8 19 41 0 0 0 82 4 17 100 40 39 54 65 6 17 30 0 0 0 81 4 17 200 40 39 55 65 16 27 40 0 0 0 82 4 17 300 39 38 56 70 11 22 30 0 0 0 82 4 17 400 40 37 53 75 10 21 29 0 0 0 82 Total Prec. 3660' ------------------------------------------------------------------------ 0 Page 1