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| Point Forecast: White Pass WA 46.64N 121.4W (Elev. 4623 ft) |
Last Update: 3:40 pm PDT Apr 19, 2024 |
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| Date | 04/19 | 04/20 | ||||||||||||||||||||||
| Hour (PDT) | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 |
| Temperature (°F) | 43 | 44 | 43 | 41 | 38 | 36 | 34 | 33 | 33 | 32 | 31 | 30 | 30 | 29 | 29 | 30 | 32 | 35 | 42 | 45 | 47 | 50 | 50 | 50 |
| Dewpoint (°F) | 20 | 21 | 21 | 21 | 21 | 20 | 18 | 18 | 18 | 18 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 21 | 23 | 24 | 27 | 27 | 28 |
| Wind Chill (°F) | 35 | 36 | 35 | 32 | 28 | 26 | 23 | 22 | 21 | 20 | 20 | 19 | 19 | 18 | 17 | 19 | 21 | 25 | 34 | 38 | 41 | 45 | 45 | 45 |
| Surface Wind (mph) | 18 | 18 | 18 | 21 | 18 | 18 | 18 | 17 | 20 | 20 | 17 | 16 | 16 | 15 | 16 | 15 | 16 | 16 | 15 | 15 | 14 | 14 | 13 | 14 |
| Wind Dir | E | E | E | E | ESE | ESE | E | E | E | E | E | E | E | E | E | E | E | E | E | E | ESE | ESE | S | SW |
| Gust | 28 | 28 | 25 | 29 | 26 | 26 | 26 | 25 | 25 | 26 | 24 | 22 | 23 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 20 | 20 | 20 | 21 |
| Sky Cover (%) | 2 | 2 | 3 | 3 | 2 | 1 | 0 | 1 | 7 | 8 | 8 | 9 | 15 | 21 | 37 | 30 | 17 | 23 | 7 | 8 | 12 | 12 | 24 | 59 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 4 | 7 | 14 | 21 |
| Relative Humidity (%) | 39 | 39 | 41 | 45 | 49 | 51 | 52 | 53 | 54 | 55 | 56 | 56 | 55 | 57 | 57 | 55 | 51 | 46 | 42 | 41 | 40 | 40 | 40 | 42 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 04/21 | |||||||||||||||||||||||
| Hour (PDT) | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 |
| Temperature (°F) | 48 | 44 | 41 | 38 | 36 | 34 | 32 | 30 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 30 | 32 | 33 | 35 | 36 | 37 | 38 |
| Dewpoint (°F) | 30 | 32 | 33 | 33 | 33 | 32 | 29 | 27 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 |
| Wind Chill (°F) | 42 | 37 | 32 | 28 | 25 | 22 | 19 | 17 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 17 | 18 | 20 | 22 | 24 | 26 | 28 | 29 |
| Surface Wind (mph) | 16 | 16 | 17 | 20 | 20 | 22 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 15 |
| Wind Dir | WSW | WSW | WSW | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W |
| Gust | 22 | 23 | 24 | 29 | 28 | 31 | 33 | 33 | 33 | 33 | 32 | 32 | 32 | 32 | 32 | 32 | 25 | 25 | 25 | 23 | 23 | 23 | 22 | 22 |
| Sky Cover (%) | 86 | 95 | 95 | 95 | 95 | 95 | 95 | 78 | 78 | 78 | 82 | 82 | 82 | 76 | 76 | 76 | 72 | 72 | 72 | 69 | 69 | 69 | 67 | 67 |
| Precipitation Potential (%) | 31 | 92 | 92 | 92 | 92 | 92 | 92 | 53 | 53 | 53 | 53 | 53 | 53 | 54 | 54 | 54 | 54 | 54 | 54 | 38 | 38 | 38 | 38 | 38 |
| Relative Humidity (%) | 50 | 62 | 73 | 81 | 88 | 91 | 87 | 89 | 90 | 89 | 89 | 90 | 90 | 90 | 89 | 88 | 85 | 81 | 76 | 72 | 69 | 66 | 65 | 64 |
| Rain | Chc | Ocnl | Ocnl | SChc | Ocnl | Ocnl | Ocnl | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | Chc | SChc | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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