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| Point Forecast: 4 Miles N Chinook Pass WA 46.93N 121.49W (Elev. 5233 ft) |
Last Update: 8:32 am PDT Sep 27, 2021 |
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| Date | 09/27 | 09/28 | ||||||||||||||||||||||
| Hour (PDT) | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |
| Temperature (°F) | 42 | 42 | 41 | 40 | 40 | 39 | 37 | 36 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 34 | 35 | 34 | 34 | 34 | 34 | 35 | 36 | 37 |
| Dewpoint (°F) | 37 | 38 | 38 | 38 | 38 | 38 | 37 | 35 | 34 | 34 | 33 | 33 | 33 | 34 | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 35 | 36 | 36 |
| Wind Chill (°F) | 35 | 34 | 33 | 32 | 33 | 32 | 30 | 29 | 28 | 28 | 28 | 28 | 28 | 26 | 26 | 25 | 27 | 26 | 26 | 25 | 25 | 26 | 28 | 29 |
| Surface Wind (mph) | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 7 | 9 | 9 | 9 | 13 | 13 | 13 | 13 | 11 | 10 | 10 | 10 | 10 | 10 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | W | WNW | WSW | S | SSW | SSW | SSW | SW | SW | SW | SW | WSW | WSW | W | W | WSW | WSW |
| Gust | 21 | 21 | 20 | 20 | 22 | 21 | 21 | 20 | 20 | 20 | 21 | 22 | 22 | 23 | 23 | 24 | 22 | 21 | 20 | 21 | 20 | |||
| Sky Cover (%) | 57 | 70 | 79 | 85 | 96 | 93 | 82 | 78 | 65 | 58 | 61 | 57 | 62 | 69 | 67 | 65 | 82 | 88 | 84 | 82 | 82 | 86 | 89 | 89 |
| Precipitation Potential (%) | 60 | 65 | 58 | 52 | 58 | 45 | 40 | 30 | 24 | 19 | 23 | 35 | 43 | 54 | 50 | 48 | 72 | 72 | 72 | 72 | 72 | 72 | 83 | 83 |
| Relative Humidity (%) | 83 | 85 | 88 | 92 | 93 | 97 | 99 | 97 | 98 | 98 | 94 | 94 | 94 | 95 | 94 | 96 | 94 | 97 | 99 | 99 | 100 | 100 | 100 | 98 |
| Rain | Lkly | Lkly | Lkly | Chc | Lkly | Chc | Chc | Chc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Ocnl | Ocnl |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | -- | -- | -- | -- | Chc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Ocnl | Ocnl |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/29 | |||||||||||||||||||||||
| Hour (PDT) | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |
| Temperature (°F) | 37 | 37 | 37 | 37 | 36 | 35 | 35 | 34 | 34 | 33 | 33 | 33 | 32 | 32 | 32 | 31 | 31 | 31 | 30 | 31 | 33 | 36 | 38 | 40 |
| Dewpoint (°F) | 36 | 36 | 36 | 36 | 36 | 35 | 35 | 34 | 33 | 32 | 32 | 31 | 31 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 31 | 32 | 33 | 33 |
| Wind Chill (°F) | 29 | 29 | 29 | 28 | 28 | 27 | 26 | 25 | 24 | 24 | 23 | 22 | 22 | 22 | 22 | 21 | 22 | 21 | 21 | 24 | 26 | 29 | 34 | 36 |
| Surface Wind (mph) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 8 | 8 | 8 | 8 | 8 | 8 | 13 | 13 | 13 | 11 | 11 |
| Wind Dir | WSW | W | W | W | W | W | W | W | W | W | WSW | WSW | WSW | WSW | WSW | WSW | SW | SW | SW | WSW | WSW | WSW | SW | SW |
| Gust | 20 | 20 | 20 | 20 | 20 | 20 | ||||||||||||||||||
| Sky Cover (%) | 89 | 89 | 89 | 89 | 83 | 83 | 83 | 81 | 81 | 81 | 69 | 69 | 69 | 64 | 64 | 64 | 71 | 71 | 71 | 53 | 53 | 53 | 62 | 62 |
| Precipitation Potential (%) | 83 | 83 | 83 | 83 | 23 | 23 | 23 | 23 | 23 | 23 | 2 | 2 | 2 | 2 | 2 | 2 | 5 | 5 | 5 | 5 | 5 | 5 | 17 | 17 |
| Relative Humidity (%) | 96 | 95 | 96 | 97 | 99 | 100 | 100 | 99 | 98 | 96 | 95 | 94 | 93 | 93 | 93 | 93 | 93 | 94 | 95 | 94 | 91 | 87 | 82 | 78 |
| Rain | Ocnl | Ocnl | Ocnl | Ocnl | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | Ocnl | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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