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4-21-2018
Northwest Avalanche Center
Washington Department of Transportation
Chinook Pass, Washington

Wind gages unheated and may rime
MM/DD Hour
PST
Temp
F
6240'
Temp
F
5500'
RH
%
6240'
RH
%
5500'
Wind
Avg
6240'
Wind
Max
6240'
Wind
Dir
6240'
Equip
Temp
5500'
Hour
Prec.
5500'
Total
Prec.
5500'
Total
Snow
5500'

4/21 1600 30 92 14 26 272
4/21 1500 27 32 91 63 19 34 265 59 0 .13 208
4/21 1400 28 32 100 67 13 21 269 63 0 .13 207
4/21 1300 29 33 89 83 17 30 271 67 0 .13 207
4/21 1200 27 33 100 88 16 33 216 67 0 .13 207
4/21 1100 25 31 100 91 18 28 235 62 0 .13 208
4/21 1000 24 28 96 95 28 46 254 53 .01 .13 208
4/21 900 26 28 82 93 30 45 277 48 0 .12 208
4/21 800 23 27 95 85 9 18 259 51 0 .12 209
4/21 700 21 27 97 95 8 22 203 52 .01 .12 209
4/21 600 22 27 97 98 18 26 215 46 .01 .11 209
4/21 500 22 26 95 100 13 23 209 43 .01 .1 209

4/21 400 24 27 95 100 16 31 219 46 .02 .09 209
4/21 300 26 28 96 100 20 38 237 44 .03 .07 208
4/21 200 25 28 96 100 32 63 235 45 .02 .04 209
4/21 100 25 29 96 100 41 65 233 45 .02 .02 209
4/21 0 27 29 96 98 36 51 236 45 0 0 209
4/20 2300 29 31 91 82 27 47 253 48 0 0 210
4/20 2200 30 32 80 75 28 46 248 50 0 0 210
4/20 2100 31 33 83 79 24 44 235 51 0 0 210
4/20 2000 34 34 73 74 21 38 253 52 0 0 210
4/20 1900 33 34 82 81 17 29 246 54 0 0 210
4/20 1800 35 36 79 68 17 33 180 56 0 0 210
4/20 1700 35 38 83 65 16 27 156 59 0 0 210
4/20 1600 36 40 86 65 13 27 253 69 0 0 210
4/20 1500 37 39 92 70 11 27 233 69 0 0 210
4/20 1400 38 41 89 70 10 20 222 77 0 0 210
4/20 1300 38 43 87 70 13 20 199 78 0 0 211
4/20 1200 40 46 100 66 10 18 209 90 0 0 211
4/20 1100 36 43 100 65 10 17 186 83 0 0 211
4/20 1000 35 42 100 69 6 11 175 86 0 0 212
4/20 900 34 36 95 80 0 5 279 64 0 0 213
4/20 800 35 34 89 83 3 6 345 56 0 0 213
4/20 700 32 32 89 90 7 11 321 52 0 0 214
4/20 600 30 30 90 95 8 12 314 49 0 0 214
4/20 500 29 29 90 97 8 11 328 47 0 0 214

4/20 400 29 29 92 94 10 13 327 46 0 0 214
4/20 300 28 29 95 99 12 16 309 47 0 0 214
4/20 200 27 30 97 100 12 17 303 47 0 0 214
4/20 100 27 30 98 97 10 14 287 46 0 0 215
4/20 0 27 31 98 95 8 11 308 50 0 0 215
4/19 2300 28 32 98 83 9 13 319 48 0 0 215
4/19 2200 28 32 98 85 12 15 309 46 0 0 215
4/19 2100 28 32 99 90 12 16 303 48 0 0 215
4/19 2000 29 33 100 91 11 15 309 51 0 0 215
4/19 1900 31 34 100 91 8 12 297 52 0 0 216
4/19 1800 32 35 100 88 10 14 287 56 0 0 216
4/19 1700 32 37 100 85 7 11 288 65 0 0 216
4/19 1600 33 39 100 77 7 14 294 71 0 0 216
4/19 1500 34 38 100 78 8 21 286 68 0 0 216
4/19 1400 33 42 100 75 7 19 227 82 0 0 217
4/19 1300 36 43 100 71 12 21 237 91 0 0 216
4/19 1200 36 41 100 72 7 18 229 90 0 0 216
4/19 1100 35 40 100 76 7 11 229 84 0 0 217
4/19 1000 35 41 100 67 2 7 218 89 0 0 217
4/19 900 34 37 100 71 0 0 7 63 0 0 218
4/19 800 28 36 100 67 0 0 275 61 0 0 219
4/19 700 28 35 100 67 0 5 275 59 0 0 219
4/19 600 27 30 99 81 0 5 296 48 0 0 219
4/19 500 25 29 95 78 1 8 133 43 0 0 220

4/19 400 25 28 96 84 3 9 82 43 0 0 220
4/19 300 26 29 96 84 1 6 350 46 0 0 220
4/19 200 26 29 95 81 0 2 307 47 0 0 220
4/19 100 24 29 95 79 0 0 234 47 0 0 220
4/19 0 25 29 95 85 0 0 166 48 0 0 220
4/18 2300 26 30 95 81 0 2 75 48 0 0 220
4/18 2200 26 30 96 88 2 8 69 48 0 0 220
4/18 2100 27 30 96 88 2 6 69 48 0 0 221
4/18 2000 27 30 97 91 2 7 67 46 0 0 221
4/18 1900 29 30 98 92 1 4 68 47 0 0 221
4/18 1800 31 30 99 88 1 7 90 49 0 0 221
4/18 1700 33 31 100 89 1 9 68 52 0 0 220
4/18 1600 32 30 100 94 2 8 76 50 0 0 221
4/18 1500 35 35 100 85 3 11 74 75 0 0 221
4/18 1400 36 35 100 84 3 9 88 78 0 0 221
4/18 1300 35 37 100 78 2 9 93 79 0 0 221
4/18 1200 34 38 100 77 1 9 82 83 0 0 221
4/18 1100 33 39 100 77 0 0 95 79 0 0 222
4/18 1000 32 35 100 83 0 0 111 74 0 0 222
4/18 900 27 30 100 88 0 0 96 62 0 0 222
4/18 800 24 26 95 93 0 0 107 51 0 0 223
4/18 700 23 24 93 96 0 0 81 44 0 0 224
4/18 600 20 22 92 98 0 0 88 36 0 0 225
4/18 500 20 22 92 99 0 0 67 35 0 0 225

4/18 400 21 22 92 98 0 0 86 35 0 0 225
4/18 300 21 22 92 98 0 0 88 36 0 0 225
4/18 200 21 23 92 99 0 0 184 38 0 0 226
4/18 100 22 23 92 97 0 0 240 44 0 0 226
4/18 0 22 24 92 98 0 0 251 44 0 0 226
4/17 2300 22 24 93 98 0 0 230 44 0 0 226
4/17 2200 22 24 93 98 0 0 203 44 0 0 226
4/17 2100 23 25 93 98 0 0 216 43 0 0 226
4/17 2000 23 25 94 98 0 0 205 44 0 0 226
4/17 1900 24 26 94 98 0 0 217 45 0 0 226
4/17 1800 24 27 94 98 0 0 218 47 0 0 226
4/17 1700 25 27 95 97 0 0 234 49 0 0 225
4/17 1600 26 28 96 97 0 0 228 51 0 0 225
4/17 1500 26 29 97 94 0 0 232 53 0 0 225
4/17 1400 29 31 99 93 2 7 216 57 0 0 225
4/17 1300 27 31 98 93 5 10 238 58 0 0 226
4/17 1200 23 31 97 92 6 11 233 55 0 0 226
4/17 1100 23 28 97 94 6 9 231 53 0 0 226
4/17 1000 24 29 95 96 5 9 230 53 0 0 226
4/17 900 22 25 92 95 5 10 230 45 0 0 227
4/17 800 22 25 92 97 2 7 214 46 0 0 227
4/17 700 21 25 92 96 5 10 208 43 0 0 228
4/17 600 19 22 91 97 7 12 224 40 0 0 228
4/17 500 18 22 91 98 10 18 260 39 0 0 228

4/17 400 18 22 91 98 13 18 276 38 0 .02 229
4/17 300 19 23 92 98 11 21 266 40 0 .02 229
4/17 200 22 24 92 99 6 10 232 41 0 .02 229
4/17 100 22 24 92 99 6 10 231 42 0 .02 229
4/17 0 22 24 92 99 6 11 225 41 0 .02 229
4/16 2300 22 24 92 99 5 11 236 42 0 .02 229
4/16 2200 22 24 92 99 6 11 235 42 .01 .02 228
4/16 2100 22 24 92 99 6 12 235 41 0 .01 226
4/16 2000 22 24 92 99 6 15 241 40 0 .01 224
4/16 1900 23 25 92 99 7 14 232 40 0 .01 223
4/16 1800 23 25 92 99 6 12 233 41 0 .01 223
4/16 1700 24 26 94 98 8 15 242 43 0 .01 223
4/16 1600 24 27 100 99 10 17 241 46 .01 .01 223
4/16 1500 25 29 95 97 10 18 242 50 0 0 221
4/16 1400 25 31 94 97 14 28 245 55 0 0 221
4/16 1300 25 28 94 98 9 16 249 51 0 0 221
4/16 1200 24 27 94 99 11 19 238 49 0 0 222
4/16 1100 24 27 94 98 12 24 246 49 0 0 222
4/16 1000 24 28 95 99 11 20 240 49 0 0 221
4/16 900 22 27 95 99 13 22 243 47 0 0 219
4/16 800 23 26 94 99 7 13 230 45 0 0 217
4/16 700 22 24 94 99 8 14 240 41 0 0 215
4/16 600 21 23 94 99 9 15 224 39 0 0 213
4/16 500 21 23 94 100 9 18 234 38 0 0 212

4/16 400 22 24 94 100 10 18 238 39 0 0 212
4/16 300 22 25 94 100 9 20 234 39 0 0 212
4/16 200 23 26 95 100 8 21 230 40 0 0 212
4/16 100 24 27 95 100 8 18 224 41 0 0 212
4/16 0 24 27 95 100 11 26 231 41 0 0 212
4/15 2300 25 27 95 100 9 22 192 41 0 0 212
4/15 2200 28 30 96 100 11 24 187 43 0 0 212
4/15 2100 28 30 96 100 14 26 133 44 0 0 212
4/15 2000 30 30 97 100 7 13 88 46 0 0 212
4/15 1900 30 30 97 100 6 11 84 46 0 0 210
4/15 1800 31 31 97 100 6 12 85 45 0 0 211
4/15 1700 32 31 96 100 4 12 87 47 0 0 211
4/15 1600 33 31 95 100 2 5 82 48 0 0 211
4/15 1500 33 31 94 100 3 10 69 48 0 0 211
4/15 1400 34 32 95 99 3 8 63 54 0 0 212
4/15 1300 33 32 95 98 3 9 105 57 0 0 212
4/15 1200 34 33 94 96 1 5 85 66 0 0 213
4/15 1100 32 34 96 95 5 11 92 64 0 0 213
4/15 1000 33 32 96 96 5 10 102 61 0 0 214
4/15 900 31 32 96 97 7 12 135 57 0 0 214
4/15 800 30 31 96 99 1 10 158 53 0 0 215
4/15 700 28 30 96 100 5 9 168 50 0 0 215
4/15 600 27 28 95 100 5 10 173 44 0 0 215
4/15 500 26 28 95 100 0 7 220 45 0 0 215

4/15 400 26 95 6 16 225
4/15 300 27 28 96 100 5 15 194 43 0 .01 215
4/15 200 27 29 96 100 6 17 184 42 0 .01 214
4/15 100 27 29 96 100 5 18 324 42 0 .01 214
4/15 0 27 29 96 100 9 21 243 44 0 .01 212
4/14 2300 27 29 96 100 7 17 288 43 0 .01 212
4/14 2200 28 30 96 100 9 20 275 43 0 .01 213
4/14 2100 28 30 96 100 11 29 248 44 0 .01 213
4/14 2000 28 30 96 100 11 27 258 45 0 .01 213
4/14 1900 29 31 96 100 10 23 301 45 0 .01 213
4/14 1800 29 31 96 100 8 18 309 47 0 .01 212
4/14 1700 30 31 97 100 8 19 292 48 0 .01 213
4/14 1600 31 32 97 100 8 22 328 50 0 .01 213
4/14 1500 31 32 97 100 10 30 197 50 0 .01 213
4/14 1400 32 33 97 98 9 22 69 57 0 .01 213
4/14 1300 33 35 96 96 10 20 151 56 0 .01 214
4/14 1200 32 35 97 96 7 19 200 56 0 .01 213
4/14 1100 32 34 97 97 13 24 172 54 0 .01 214
4/14 1000 32 34 97 98 12 22 159 53 0 .01 215
4/14 900 31 32 97 100 7 13 228 50 .01 .01 215
4/14 800 29 31 96 100 5 13 18 49 0 0 215
4/14 700 28 31 96 100 23 48 225 46 0 0 216
4/14 600 27 29 96 100 25 42 233 44 0 0 215
4/14 500 27 29 96 100 28 37 238 44 0 0 215

4/14 400 27 29 96 100 31 43 235 44 0 .08 215
4/14 300 27 29 96 100 33 40 232 44 0 .08 215
4/14 200 27 29 96 100 31 50 235 43 0 .08 214
4/14 100 27 29 97 100 31 47 238 43 0 .08 213
4/14 0 27 29 97 100 33 50 236 43 0 .08 212
4/13 2300 27 29 96 100 36 55 233 41 0 .08 212
4/13 2200 28 30 99 100 36 49 224 44 0 .08 211
4/13 2100 28 30 98 100 37 58 236 44 0 .08 209
4/13 2000 29 31 96 100 33 60 232 43 0 .08 209
4/13 1900 29 31 98 100 22 50 226 43 0 .08 206
4/13 1800 29 31 98 100 19 39 237 46 0 .08 209
4/13 1700 30 32 98 100 13 25 219 48 0 .08 209
4/13 1600 30 33 98 97 25 42 229 53 0 .08 209
4/13 1500 30 32 99 97 33 47 230 54 0 .08 209
4/13 1400 30 33 98 96 33 51 228 59 .01 .08 209
4/13 1300 31 36 98 87 37 54 233 62 0 .07 209
4/13 1200 29 35 97 89 18 28 230 58 .01 .07 209
4/13 1100 28 35 98 91 20 28 230 55 .01 .06 210
4/13 1000 26 31 97 96 19 25 226 46 .01 .05 205
4/13 900 26 29 95 97 13 22 227 46 .01 .04 205
4/13 800 26 28 95 98 3 7 207 45 .01 .03 204
4/13 700 25 27 95 98 6 10 203 43 .01 .02 204
4/13 600 24 26 95 98 9 13 205 41 0 .01 204
4/13 500 24 25 95 100 10 19 212 40 .01 .01 203

4/13 400 24 25 95 99 12 24 230 39 .01 .72 203
4/13 300 23 24 95 99 15 28 234 40 0 .71 202
4/13 200 22 23 94 98 12 23 233 39 0 .71 201
4/13 100 21 23 94 98 6 13 207 37 0 .71 201
4/13 0 21 23 94 98 5 11 210 36 0 .71 202
4/12 2300 22 24 94 99 7 22 247 40 .01 .71 202
4/12 2200 22 24 94 99 6 14 219 39 0 .7 201
4/12 2100 20 23 94 98 6 11 212 39 0 .7 201
4/12 2000 19 23 94 98 7 11 255 40 0 .7 201
4/12 1900 21 24 94 98 8 12 226 42 0 .7 201
4/12 1800 23 27 95 97 9 14 223 46 0 .7 201
4/12 1700 25 29 95 95 10 20 234 51 0 .7 202
4/12 1600 26 30 95 92 14 19 222 55 0 .7 201
4/12 1500 25 31 95 87 14 21 233 59 .02 .7 201
4/12 1400 24 32 94 89 13 19 232 62 .02 .68 201
4/12 1300 24 31 95 91 10 18 227 55 .05 .66 200
4/12 1200 23 33 94 88 13 20 230 60 .16 .61 201
4/12 1100 23 29 94 95 10 17 234 50 .13 .45 199
4/12 1000 21 26 94 95 13 21 233 48 .09 .32 198
4/12 900 20 25 93 95 9 15 219 46 .1 .23 199
4/12 800 20 26 93 95 8 16 222 47 .05 .13 199
4/12 700 20 24 94 96 8 13 220 43 .04 .08 199
4/12 600 19 22 94 97 11 16 223 41 .02 .04 199
4/12 500 20 22 94 98 12 18 220 41 .02 .02 199

4/12 400 20 22 94 99 10 15 224 41 .02 .7 199
4/12 300 19 22 94 98 8 14 227 40 .02 .68 199
4/12 200 20 22 94 98 9 14 252 41 .02 .66 199
4/12 100 20 23 94 98 10 13 268 41 .02 .64 199
4/12 0 21 24 94 98 10 15 254 43 .03 .62 198
4/11 2300 22 24 95 99 8 15 235 42 .04 .59 198
4/11 2200 24 26 95 100 6 14 224 43 .04 .55 197
4/11 2100 26 28 96 100 5 13 203 46 .07 .51 197
4/11 2000 27 29 96 100 5 12 151 46 .05 .44 196
4/11 1900 26 28 96 100 6 13 91 47 .03 .39 196
4/11 1800 26 28 96 100 9 16 87 48 .03 .36 196
4/11 1700 27 28 96 100 6 18 83 49 .05 .33 196
4/11 1600 27 29 96 100 7 13 91 49 .06 .28 195
4/11 1500 26 30 96 97 10 17 108 54 .06 .22 195
4/11 1400 27 30 95 96 15 23 128 55 .02 .16 194
4/11 1300 25 29 95 95 17 25 151 53 .04 .14 193
4/11 1200 25 29 96 96 12 23 164 52 .06 .1 193
4/11 1100 25 32 94 82 14 24 149 58 0 .04 193
4/11 1000 26 31 95 82 15 24 146 58 0 .04 194
4/11 900 25 31 94 92 18 24 153 54 0 .04 193
4/11 800 24 28 95 95 14 21 137 46 .01 .04 194
4/11 700 24 27 95 99 8 18 177 44 .01 .03 194
4/11 600 24 27 95 100 6 16 240 42 .02 .02 194
4/11 500 24 27 95 100 10 21 155 40 0 0 194

MM/DD Hour
PST
Temp
F
6240'
Temp
F
5500'
RH
%
6240'
RH
%
5500'
Wind
Avg
6240'
Wind
Max
6240'
Wind
Dir
6240'
Equip
Temp
5500'
Hour
Prec.
5500'
Total
Prec.
5500'
Total
Snow
5500'