A Pacific storm and atmospheric river will impact the Pacific Northwest states and northern Rockies this weekend, bringing locally heavy low elevations rain and heavy high elevation snow in the mountains. By Sunday over the Interior Northwest, rain combined with snowmelt will increase the risk of flood hazards. Flood Watches are in effect. Read More >
FWUS46 KPQR 211201
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FWUS46 KPQR 211201
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Avalanche Weather Guidance
National Weather Service Portland OR
401 AM PST Fri Feb 21 2025
...Mount St. Helens...
Date Friday 02/21/25 Saturday 02/22/25
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
Cloud Cover (%) 80 75 75 95 95 90 85 100 85 100 100 100 100 100 100 100
Temperature 32 34 35 34 33 33 34 32 34 34 35 37 38 38 38 38
Max/Min Temp 36 32 38 37
Wind Dir SE S S SW S SW SW SW S S S S SW SW SW S
Wind (mph) 12 13 14 16 14 16 16 14 14 17 19 21 23 19 17 17
Wind Gust (mph) 31 33 39 39 31 33 31 31 31 33 39 41 41 39 33 33
Precip Prob (%) 5 10 20 40 90 90 80 70 100 70 100 100 100 100 100 100 100
Precip Type S S S S S S S Z Z Z R R R R R
6 Hour QPF 0.00 0.15 0.78 0.35 0.22 0.47 0.99 0.83
6 Hour Snow 0.0 0.7 3.2 1.0 0.5 0.3 0.0 0.0
12 Hour Snow 0.7 4.2 0.8 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 0.01 0.02 0.00 0.00
Snow Level (kft) 4.3 4.4 4.7 4.7 4.9 5.4 5.9 5.9 6.1 6.5 7.0 7.9 8.4 8.1 7.6 7.5
...Mount Hood...
Date Friday 02/21/25 Saturday 02/22/25
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
Cloud Cover (%) 70 75 75 85 80 80 75 90 75 90 90 100 100 100 100 100
Temperature 27 32 33 32 29 29 30 29 30 33 34 35 35 35 36 36
Max/Min Temp 35 28 36 35
Wind Dir SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind (mph) 11 14 14 14 13 17 18 19 16 14 18 24 32 34 32 31
Wind Gust (mph) 27 31 31 31 29 33 34 36 31 31 34 41 51 55 51 51
Precip Prob (%) 5 5 10 20 70 50 50 50 80 30 80 80 100 100 100 100 100
Precip Type S S S S S S S S S S S S S S
6 Hour QPF 0.00 0.05 0.44 0.30 0.07 0.17 0.75 0.76
6 Hour Snow 0.0 0.3 3.4 2.1 0.5 0.6 2.1 1.8
12 Hour Snow 0.3 5.5 1.1 3.9
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) 4.5 4.8 5.1 5.3 5.3 5.3 5.8 6.0 6.3 6.7 7.0 7.8 8.7 8.8 8.2 8.1
$$
--- Precip Type Codes ---
CODE TYPE
T Thunderstorms
R Rain
S Snow
I Sleet
Z Freezing Rain
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