In the north-central U.S., a strong storm will continue to bring heavy snow and gusty to high winds over parts of the northern Plains and Upper Midwest tonight before moving across the Great Lakes with heavy lake effect snow Wednesday into Thanksgiving Day. Read More >
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Avalanche Weather Guidance
National Weather Service Portland OR
401 PM PST Tue Nov 25 2025
...Mount St. Helens...
Date Wednesday 11/26/25 Thursday 11/27/25
Time (LT) 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
4a 7a 10a 1p 4p 7p 10p 1a 4a 7a 10a 1p 4p 7p 10p 1a 4a
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 80 85 80 90 95 95 90 90 95 95 100 100 95 95 85 85 75
Temperature 33 35 34 35 34 35 36 35 33 33 31 32 32 32 33 34 34
Max/Min Temp 36 32 34 31
Wind Dir SW SW SW SW SW SE SE S SE SE SE S S E N N N
Wind (mph) 9 8 5 4 4 8 11 16 16 17 17 13 12 13 13 11 10
Wind Gust (mph) 17 12 10 10 13 19 23 25 27 28 25 24 24 23 20 17
Precip Prob (%) 50 20 20 30 90 90 90 90 100 100 100 100 90 90 80 80 60
Precip Type Z Z S S R R R R R S Z Z S S S S S
6 Hour QPF 0.06 0.13 0.21 0.10 0.27 0.51 0.63 0.38
6 Hour Snow 0.1 0.1 0.0 0.0 0.4 1.2 2.8 1.7
12 Hour Snow 0.2 0.0 1.6 4.5
Low End Snow MM MM MM MM
High End Snow MM MM MM MM
6 Hour Ice 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00
Snow Level (kft) 6.9 6.1 5.8 6.5 7.5 7.7 7.2 6.7 6.2 6.1 6.3 6.0 5.7 5.7 5.5 5.3 5.1
...Mount Hood...
Date Wednesday 11/26/25 Thursday 11/27/25
Time (LT) 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
4a 7a 10a 1p 4p 7p 10p 1a 4a 7a 10a 1p 4p 7p 10p 1a 4a
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 90 90 80 85 90 90 80 75 95 95 100 100 95 95 90 90 85
Temperature 31 33 33 33 32 34 32 31 29 30 29 29 28 30 31 32 31
Max/Min Temp 34 29 31 28
Wind Dir W W SW SW SW SW S SW SW N SW W W W W W W
Wind (mph) 12 9 5 3 4 5 8 12 11 12 12 12 13 17 20 18 16
Wind Gust (mph) 23 16 11 10 18 19 20 21 24 27 28 31 28 25
Precip Prob (%) 80 60 40 60 80 80 60 60 90 90 100 100 90 90 90 90 80
Precip Type S S S S S S S S S S S S S S S S S
6 Hour QPF 0.33 0.30 0.13 0.02 0.13 0.24 0.42 0.40
6 Hour Snow 0.9 0.9 0.4 0.1 0.6 1.2 3.2 3.3
12 Hour Snow 1.8 0.5 1.8 6.5
Low End Snow MM MM MM MM
High End Snow MM MM MM MM
6 Hour Ice 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Snow Level (kft) 7.7 7.6 7.6 7.9 8.2 7.7 6.9 6.2 6.2 6.0 6.4 6.1 5.9 5.7 5.5 5.4 5.1
$$
--- Precip Type Codes ---
CODE TYPE
T Thunderstorms
R Rain
S Snow
I Sleet
Z Freezing Rain
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