A moderate atmospheric river will continue to bring heavy snow over the Olympics, northern Cascades and northern Rockies Friday while heavy rain may bring flooding to coastal Oregon and Washington. A winter storm will continue to push across the Great Lakes and Northeast U.S. Friday and Saturday with areas of heavy snow and high winds. Read More >
FWUS46 KPQR 130633
AVGPQR
Avalanche Weather Guidance
National Weather Service Portland OR
1131 PM PDT Thu Mar 12 2026
...Mount St. Helens...
Date Friday 03/13/26 Saturday 03/14/26
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV BK BK BK
Cloud Cover (%) 100 100 100 100 100 100 100 95 90 80 80 65 65 60
Temperature 33 33 34 32 32 31 30 29 26 20 19 21 25 26
Min/Max Temp 27 35 18 26
Wind Dir SW SW SW W W W W W W NW NW NW W W
Wind (mph) 14 18 14 11 10 10 9 11 12 16 16 19 20 19
Wind Gust (mph) 24 29 24 19 19 18 17 18 21 27 27 33 34 32
Precip Prob (%) 100 100 100 100 100 100 100 100 90 80 70 70 50 50 30
Precip Type S S S S S S S S S S S S S S
6 Hour QPF 1.32 1.44 1.26 0.72 0.19 0.05 0.04
6 Hour Snow 4.9 5.7 6.7 4.5 1.6 0.6 0.5
12 Hour Snow 4.9 12.4 6.1 1.1
Low End Snow 0.7 0.4 0.0
High End Snow 15.1 9.6 1.2
6 Hour Ice 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Snow Level (kft) 6.0 6.1 5.9 5.3 5.1 4.8 4.3 3.5 2.2 0.6 0.2 0.2 1.0 1.4
...Mount Hood...
Date Friday 03/13/26 Saturday 03/14/26
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV BK BK BK
Cloud Cover (%) 90 85 95 90 95 100 100 100 95 85 85 65 65 60
Temperature 31 31 32 33 33 32 32 31 27 20 15 17 19 20
Min/Max Temp 29 33 14 24
Wind Dir W W W SW W SW W W W W W W W W
Wind (mph) 47 49 48 43 40 36 35 33 34 37 39 36 34 32
Wind Gust (mph) 65 70 69 65 61 55 52 48 50 52 54 52 50 43
Precip Prob (%) 90 80 80 80 80 90 100 100 100 90 80 80 40 40 20
Precip Type S S S S S S S S S S S S S S
6 Hour QPF 0.60 0.88 1.41 1.37 0.90 0.11 0.02
6 Hour Snow 3.5 3.8 5.8 8.1 7.6 1.2 0.3
12 Hour Snow 3.5 9.6 15.7 1.5
Low End Snow 0.0 0.6 0.0
High End Snow 16.7 20.2 2.3
6 Hour Ice 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Snow Level (kft) 6.3 6.5 6.8 6.8 6.7 6.6 6.3 5.8 4.1 2.4 0.4 0.4 1.2 1.4
$$
--- Precip Type Codes ---
CODE TYPE
T Thunderstorms
R Rain
S Snow
I Sleet
Z Freezing Rain
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