A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >
FWUS46 KPQR 260001
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FWUS46 KPQR 260001
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Avalanche Weather Guidance
National Weather Service Portland OR
401 PM PST Thu Dec 25 2025
...Mount St. Helens...
Date Friday 12/26/25 Saturday 12/27/25
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 BK
Cloud Cover (%) 70 80 95 90 100 100 90 90 80 80 75 75 75 80 80 80 65
Temperature 26 26 26 26 22 21 21 21 20 21 21 22 21 21 21 21 20
Max/Min Temp 27 20 23 18
Wind Dir S SW W W W W W W W W W W W W W W W
Wind (mph) 12 13 16 17 21 24 25 23 20 17 12 8 4 4 5 5 8
Wind Gust (mph) 19 21 26 31 35 39 40 37 35 28 21 16
Precip Prob (%) 40 60 90 90 100 100 80 80 60 60 30 30 10 10 5 5 0
Precip Type S S S S S S S S S S S S
6 Hour QPF 0.33 0.41 0.31 0.29 0.06 0.02 0.00 0.00
6 Hour Snow 3.0 4.3 3.6 3.3 0.8 0.3 0.0 0.0
12 Hour Snow 7.3 6.9 1.1 0.0
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) 3.2 3.0 2.7 2.4 1.5 1.3 1.2 1.1 1.1 0.7 0.8 0.8 0.9 0.9 0.9 0.8 0.9
...Mount Hood...
Date Friday 12/26/25 Saturday 12/27/25
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 BK OV OV OV OV BK
Cloud Cover (%) 90 80 80 95 100 100 95 95 85 85 75 70 70 75 80 80 65
Temperature 21 22 21 22 18 16 16 15 14 16 15 16 16 17 17 18 16
Max/Min Temp 23 14 18 13
Wind Dir SW SW W W W W W W W W W W W W W W W
Wind (mph) 12 18 21 27 35 43 46 47 44 40 31 21 13 11 10 9 9
Wind Gust (mph) 20 28 35 42 52 62 65 65 63 56 44 33 23 18 16
Precip Prob (%) 80 60 50 90 100 100 90 90 80 80 50 50 20 20 10 10 5
Precip Type S S S S S S S S S S S S S S
6 Hour QPF 0.37 0.56 0.48 0.32 0.12 0.03 0.00 0.00
6 Hour Snow 4.0 6.1 5.5 3.6 1.5 0.4 0.0 0.0
12 Hour Snow 10.1 9.1 1.9 0.0
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) 3.4 3.3 3.1 3.1 2.3 1.5 1.5 1.3 1.3 1.1 1.0 1.4 1.5 1.3 1.2 1.1 1.0
$$
--- Precip Type Codes ---
CODE TYPE
T Thunderstorms
R Rain
S Snow
I Sleet
Z Freezing Rain
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