501
FWUS46 KSEW 170934
AVGSEW
AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE SEATTLE WA
134 AM PST WED DEC 17 2025
..HURRICANE RIDGE
DATE WEDNESDAY 12/17/25 THURSDAY 12/18/25
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 80 85 70 80 85 85 95 100 100 100 100 90 90 70 70 85
TEMPERATURE 24 24 25 26 27 27 28 29 28 28 28 33 32 30 27 25 24
MAX/MIN TEMP 28 26 34 23
WIND DIR W W W SW SW SW S SW S S S SW SW SW SW SW SW
WIND (MPH) 35 34 32 28 10 10 10 10 9 10 14 13 14 17 16 13 12
WIND GUST (MPH)
PRECIP PROB (%) 70 70 80 60 70 80 70 90 100 100 100 100 90 90 60 60 80
PRECIP TYPE S S S S S S S S S S S S S S S S S
6 HOUR QPF 0.15 0.12 0.06 0.17 0.16 0.28 0.23 0.05
6 HOUR SNOW 2.1 1.5 0.7 1.7 1.5 0.9 2.1 0.8
12 HOUR SNOW 3.6 2.4 2.4 2.9
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 1.8 1.9 2.3 2.5 2.7 2.8 3.2 3.2 3.2 2.8 5.5 6.3 4.6 3.2 2.0 1.7 1.6
..MOUNT BAKER SKI AREA
DATE WEDNESDAY 12/17/25 THURSDAY 12/18/25
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 (%) 100 85 95 85 95 90 90 95 100 100 100 100 100 100 85 85 90
TEMPERATURE 28 27 26 27 28 28 29 29 29 29 28 30 32 32 29 27 26
MAX/MIN TEMP 29 27 33 24
WIND DIR W W W W SW SW S S S S S S S SW SW SW SW
WIND (MPH) 32 31 29 26 11 12 12 12 12 13 14 14 16 19 16 12 8
WIND GUST (MPH) 49 39 35
PRECIP PROB (%) 100 60 90 80 90 80 70 90 100 100 100 100 100 100 80 80 80
PRECIP TYPE S S S S S S S S S S S S S S S S S
6 HOUR QPF 0.34 0.28 0.23 0.25 0.45 0.52 0.45 0.18
6 HOUR SNOW 4.5 3.7 3.1 3.0 5.2 5.2 4.1 2.3
12 HOUR SNOW 8.2 6.1 10.4 6.4
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 2.1 1.8 2.0 2.1 2.3 2.5 2.7 2.7 2.7 2.6 2.6 4.0 3.8 3.3 2.2 1.5 1.4
..STEVENS PASS
DATE WEDNESDAY 12/17/25 THURSDAY 12/18/25
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 (%) 100 80 95 90 90 90 90 90 100 100 100 100 100 100 90 90 85
TEMPERATURE 29 27 26 27 29 28 29 30 29 29 27 32 34 34 32 29 26
MAX/MIN TEMP 29 27 35 24
WIND DIR W W W W W SW W SW SW SE SE S SW SW W W W
WIND (MPH) 25 24 20 14 8 6 6 4 4 5 6 6 8 11 12 11 8
WIND GUST (MPH) 44 42 31 34 29
PRECIP PROB (%) 100 70 90 80 90 90 80 80 100 100 100 100 100 100 80 80 80
PRECIP TYPE S S S S S S S S S S S S S S S S S
6 HOUR QPF 0.45 0.34 0.23 0.16 0.15 0.63 0.67 0.34
6 HOUR SNOW 6.3 4.8 3.0 1.9 1.8 5.3 4.1 3.7
12 HOUR SNOW 11.1 4.9 7.1 7.8
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 2.3 1.8 2.2 2.4 2.5 2.7 2.8 2.9 2.9 2.7 2.8 4.9 4.8 4.3 3.2 2.0 1.6
..SNOQUALMIE PASS (3000 FEET)
DATE WEDNESDAY 12/17/25 THURSDAY 12/18/25
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 (%) 95 85 85 90 90 95 95 90 100 100 100 100 100 100 90 90 85
TEMPERATURE 30 28 28 30 32 31 31 31 31 30 30 34 38 36 33 30 28
MAX/MIN TEMP 32 29 39 27
WIND DIR W W W W W SW SW SW S SE SE SE SW SW W W W
WIND (MPH) 19 18 16 13 5 4 3 2 2 3 5 6 8 8 6 5 3
WIND GUST (MPH) 25 25
PRECIP PROB (%) 90 70 80 90 90 90 90 70 100 100 100 100 100 100 90 90 80
PRECIP TYPE S S S S S S S S S S S R R S S S S
6 HOUR QPF 0.25 0.26 0.23 0.13 0.17 0.82 0.72 0.28
6 HOUR SNOW 3.1 3.2 2.7 1.4 1.7 2.4 0.3 2.4
12 HOUR SNOW 6.3 4.1 4.1 2.7
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 2.3 2.0 2.2 2.5 2.6 2.7 2.9 2.9 2.7 2.5 2.7 6.7 5.7 4.6 3.3 2.1 1.8
..WHITE PASS
DATE WEDNESDAY 12/17/25 THURSDAY 12/18/25
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 (%) 100 90 95 90 90 80 90 90 100 100 100 100 100 100 90 90 85
TEMPERATURE 27 25 25 26 28 28 28 28 27 27 29 34 36 35 32 30 26
MAX/MIN TEMP 28 26 36 23
WIND DIR W W W W W W W SW SW S S SW SW SW W W W
WIND (MPH) 32 28 24 18 10 10 9 6 6 6 9 10 11 14 16 14 11
WIND GUST (MPH) 51 48 41 35 32 37 36 34
PRECIP PROB (%) 100 80 90 90 90 70 50 60 100 100 100 100 100 100 80 80 80
PRECIP TYPE S S S S S S S S S S S S R S S S S
6 HOUR QPF 0.39 0.33 0.20 0.07 0.29 1.14 0.99 0.34
6 HOUR SNOW 5.9 5.0 2.7 0.9 3.4 4.1 1.1 3.3
12 HOUR SNOW 10.9 3.6 7.5 4.4
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 2.4 2.0 2.3 2.5 2.7 2.8 2.9 3.0 2.7 2.9 4.0 6.0 6.2 5.4 3.8 2.7 2.0
..PARADISE (MOUNT RAINIER - 5420 FEET)
DATE WEDNESDAY 12/17/25 THURSDAY 12/18/25
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 (%) 95 90 100 95 90 95 90 90 100 100 100 100 100 100 90 90 90
TEMPERATURE 25 23 22 24 25 25 27 26 26 26 28 33 34 33 31 27 24
MAX/MIN TEMP 26 24 35 23
WIND DIR W W W W W W W W W S S SW SW SW SW W SW
WIND (MPH) 36 33 29 26 13 12 11 10 10 12 14 17 18 23 20 17 12
WIND GUST (MPH)
PRECIP PROB (%) 100 90 100 90 80 100 90 70 100 100 100 100 100 100 90 90 80
PRECIP TYPE S S S S S S S S S S S S R S S S S
6 HOUR QPF 0.52 0.54 0.51 0.21 0.49 1.11 1.08 0.38
6 HOUR SNOW 8.0 8.3 7.4 2.8 5.7 4.7 2.3 4.3
12 HOUR SNOW 16.3 10.2 10.4 6.6
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 2.3 1.9 2.3 2.6 2.7 2.9 3.0 3.0 2.8 3.3 4.4 6.3 6.2 5.4 3.7 2.5 2.0
--- PRECIP TYPE CODES ---
CODE TYPE
T THUNDERSTORMS
R RAIN
S SNOW
I SLEET
Z FREEZING RAIN
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