Active pattern across the country with an atmospheric river event across the Northwest into the northern Rockies and a cold front moving through the east. For the west, accumulating snow and strong winds for the higher elevations are expected through Tuesday. Meanwhile, a cold front moves across the east with gusty winds and snow showers across the Great Lakes and New England. Read More >
FWUS46 KPQR 170001
AVGPQR
FWUS46 KPQR 170001
AVGPQR
Avalanche Weather Guidance
National Weather Service Portland OR
401 PM PST Mon Dec 16 2024
...Mount St. Helens...
Date Tuesday 12/17/24 Wednesday 12/18/24
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 BK BK BK BK OV
Cloud Cover (%) 90 90 95 100 100 100 100 100 95 95 75 70 55 55 65 70 80
Temperature 30 30 31 32 34 36 37 36 36 35 34 34 32 31 31 33 34
Max/Min Temp 36 32 35 30
Wind Dir SW S S S SW S S S SW SW SW W SW SE SE E E
Wind (mph) 11 10 18 19 20 21 24 25 25 21 18 11 5 9 13 16 17
Wind Gust (mph) 25 20 36 36 37 41 44 44 44 40 33 19 20 23 25
Precip Prob (%) 60 60 90 100 100 100 100 100 90 90 60 60 30 30 50 50 50
Precip Type S S S S R R R R R S S S S S S S R
6 Hour QPF 0.61 1.25 0.99 1.06 0.84 0.08 0.02 0.07
6 Hour Snow 2.9 1.6 0.0 0.0 1.3 0.3 0.1 0.1
12 Hour Snow 4.5 0.0 1.6 0.2
Low End Snow MM MM MM MM
High End Snow MM MM MM MM
6 Hour Ice 0.00 0.02 0.00 0.00 0.00 0.00 0.00 0.00
Snow Level (kft) 4.2 4.2 4.9 6.8 8.4 8.4 7.8 7.9 7.0 5.6 4.7 4.6 4.5 4.7 5.1 6.0 6.8
...Mount Hood...
Date Tuesday 12/17/24 Wednesday 12/18/24
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 BK BK BK BK OV
Cloud Cover (%) 90 90 90 100 90 90 95 95 95 95 70 70 60 60 65 65 70
Temperature 25 27 28 30 32 33 33 33 33 33 32 32 30 28 28 29 30
Max/Min Temp 33 29 34 27
Wind Dir W W SW SW SW SW SW SW SW SW W W W SW SW SW SW
Wind (mph) 20 19 16 18 20 23 28 33 39 37 32 21 9 9 9 9 10
Wind Gust (mph) 39 36 31 33 36 40 48 51 59 59 51 39 16 14 16 14 16
Precip Prob (%) 60 80 90 100 90 90 90 90 90 90 60 60 40 40 50 50 40
Precip Type S S S S S S S S S S S S S S S S S
6 Hour QPF 0.81 1.06 0.55 0.41 0.70 0.07 0.03 0.03
6 Hour Snow 6.1 4.1 1.1 0.9 2.6 0.4 0.1 0.1
12 Hour Snow 10.2 2.0 3.0 0.2
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 5.3 7.1 8.3 8.3 7.6 7.9 7.6 6.4 5.6 5.4 5.4 5.5 6.0 6.6 7.1
$$
--- Precip Type Codes ---
CODE TYPE
T Thunderstorms
R Rain
S Snow
I Sleet
Z Freezing Rain
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