Avalanche Weather Guidance
Issued by NWS Seattle/Tacoma, WA
Issued by NWS Seattle/Tacoma, WA
537
FWUS46 KSEW 162150
AVGSEW
AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE SEATTLE WA
250 PM PDT FRI MAY 16 2025
...HURRICANE RIDGE...
DATE SATURDAY 05/17/25 SUNDAY 05/18/25
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 BK BK BK BK BK SC SC
CLOUD COVER (%) 90 95 90 85 85 75 85 85 80 80 55 60 65 60 50 50 45
TEMPERATURE 40 39 38 37 36 35 38 37 37 33 31 30 30 32 36 40 41
MIN/MAX TEMP 35 39 30 42
WIND DIR S S S NW NW W W W W W W W W W W W W
WIND (MPH) 9 6 3 3 5 6 10 11 11 12 11 11 12 10 10 10 9
WIND GUST (MPH)
PRECIP PROB (%) 80 90 80 60 30 50 60 80 60 60 20 20 10 10 20 20 10
PRECIP TYPE R R R R R R S S S S S S S S
6 HOUR QPF 0.11 0.07 0.05 0.10 0.03 0.01 0.00 0.00
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.1 0.1 0.0 0.0
12 HOUR SNOW 0.0 0.0 0.2 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 6.6 6.4 6.1 5.8 5.4 5.1 5.0 4.9 4.6 4.1 3.5 3.5 3.6 3.7 4.1 4.5 4.7
...MOUNT BAKER SKI AREA...
DATE SATURDAY 05/17/25 SUNDAY 05/18/25
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 OV OV OV OV OV OV
CLOUD COVER (%) 85 90 90 90 90 85 90 100 95 95 90 90 90 90 85 80 75
TEMPERATURE 41 40 40 40 40 40 40 40 40 38 37 36 35 36 37 38 40
MIN/MAX TEMP 39 42 35 40
WIND DIR S S S SE SE S W W W SW S W W W W W W
WIND (MPH) 8 8 6 4 3 8 5 6 10 5 6 8 12 9 9 8 6
WIND GUST (MPH)
PRECIP PROB (%) 30 40 80 80 80 50 70 100 90 90 90 90 80 80 60 60 20
PRECIP TYPE R R R R R R R R R S S S S S S S S
6 HOUR QPF 0.04 0.13 0.11 0.30 0.17 0.17 0.10 0.03
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0
12 HOUR SNOW 0.0 0.0 0.1 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 6.1 6.1 6.1 6.0 5.8 5.7 5.6 5.4 5.2 4.9 4.5 4.1 4.1 4.1 4.3 4.8 5.1
...STEVENS PASS...
DATE SATURDAY 05/17/25 SUNDAY 05/18/25
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 OV OV OV OV OV OV
CLOUD COVER (%) 75 90 85 90 90 90 95 85 90 95 85 85 85 90 80 70 75
TEMPERATURE 45 43 40 40 39 40 43 44 42 38 36 34 33 33 36 39 40
MIN/MAX TEMP 39 44 33 40
WIND DIR W S S S SE W W W W W W W W W W W W
WIND (MPH) 6 4 4 4 3 6 8 9 10 11 10 9 11 11 13 12 11
WIND GUST (MPH)
PRECIP PROB (%) 10 20 50 70 80 50 90 80 80 80 60 60 50 50 20 20 20
PRECIP TYPE R R R R R R R R S S S S S S S S
6 HOUR QPF 0.01 0.17 0.05 0.09 0.19 0.28 0.07 0.03
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 1.5 0.4 0.0
12 HOUR SNOW 0.0 0.0 1.5 0.4
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 6.4 6.4 6.4 6.3 6.1 5.9 5.9 5.6 5.3 4.6 4.1 3.7 3.7 3.6 3.9 4.5 5.0
...SNOQUALMIE PASS (3000 FEET)...
DATE SATURDAY 05/17/25 SUNDAY 05/18/25
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 OV OV OV OV BK OV
CLOUD COVER (%) 85 90 85 85 95 80 80 80 95 95 85 85 85 80 75 70 70
TEMPERATURE 47 44 41 41 40 41 44 45 45 39 36 35 34 34 37 41 43
MIN/MAX TEMP 39 47 33 43
WIND DIR W N N NE N W W NW NW NW NW W W W W NW NW
WIND (MPH) 5 3 2 3 3 4 5 6 10 9 8 10 11 11 13 11 9
WIND GUST (MPH)
PRECIP PROB (%) 20 30 60 80 90 50 60 70 100 100 80 80 50 50 30 30 30
PRECIP TYPE R R R R R R R R R S S S S S S R R
6 HOUR QPF 0.05 0.20 0.11 0.11 0.46 0.40 0.13 0.04
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.7 0.0 0.0
12 HOUR SNOW 0.0 0.0 0.7 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 6.5 6.5 6.5 6.3 6.0 5.9 5.7 5.5 5.2 4.5 3.9 3.5 3.5 3.5 3.8 4.5 5.0
...WHITE PASS...
DATE SATURDAY 05/17/25 SUNDAY 05/18/25
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 OV OV OV BK BK BK
CLOUD COVER (%) 85 90 90 90 95 80 80 80 90 95 85 80 80 70 70 65 65
TEMPERATURE 46 43 39 38 38 39 42 42 42 37 34 32 30 31 35 39 40
MIN/MAX TEMP 37 44 30 41
WIND DIR W W W NW W W W W W W W W W W W W W
WIND (MPH) 6 5 3 2 4 6 11 14 13 13 14 17 19 17 16 14 13
WIND GUST (MPH)
PRECIP PROB (%) 20 30 30 40 90 60 60 60 80 80 30 30 40 40 30 30 10
PRECIP TYPE R R R R R R R R S S S S S S S S
6 HOUR QPF 0.00 0.05 0.08 0.15 0.11 0.05 0.05 0.01
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.4 0.4 0.0
12 HOUR SNOW 0.0 0.0 0.4 0.4
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 6.7 6.7 6.6 6.6 6.2 5.9 5.8 5.8 5.5 4.9 4.2 3.4 3.3 3.5 3.9 4.8 5.2
...PARADISE (MOUNT RAINIER - 5420 FEET) ...
DATE SATURDAY 05/17/25 SUNDAY 05/18/25
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 OV OV OV BK BK BK
CLOUD COVER (%) 90 95 90 90 95 85 75 75 95 95 85 75 85 75 70 65 70
TEMPERATURE 40 39 38 37 37 37 37 38 37 34 32 29 29 29 31 34 35
MIN/MAX TEMP 36 40 27 35
WIND DIR W W W W W SW W W W W NW NW W W NW W NW
WIND (MPH) 9 6 5 5 6 5 13 18 26 27 31 35 31 27 27 24 16
WIND GUST (MPH)
PRECIP PROB (%) 40 40 30 60 90 50 50 60 90 90 50 50 50 50 30 30 20
PRECIP TYPE R R R R S S S S S S S S S S S S S
6 HOUR QPF 0.05 0.14 0.08 0.12 0.28 0.14 0.08 0.06
6 HOUR SNOW 0.0 0.0 0.0 0.0 1.7 1.7 0.9 0.3
12 HOUR SNOW 0.0 0.0 3.4 1.2
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 6.7 6.7 6.6 6.5 6.2 5.9 5.8 5.8 5.5 4.9 4.2 3.3 3.4 3.6 4.1 4.7 5.1
$$
--- PRECIP TYPE CODES ---
CODE TYPE
T THUNDERSTORMS
R RAIN
S SNOW
I SLEET
Z FREEZING RAIN