767  
FWUS46 KSEW 201026  
AVGSEW  
 
AVALANCHE WEATHER GUIDANCE  
NATIONAL WEATHER SERVICE SEATTLE WA  
226 AM PST FRI DEC 20 2024  
 
   
..HURRICANE RIDGE
 
 
DATE FRIDAY 12/20/24 SATURDAY 12/21/24  
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 BK OV OV OV BK BK SC OV OV OV OV OV OV OV BK BK OV  
CLOUD COVER (%) 55 80 85 90 65 55 30 70 80 80 100 100 75 75 60 65 80  
TEMPERATURE 36 38 40 40 39 38 37 38 39 38 36 35 32 32 30 31 32  
MAX/MIN TEMP 42 34 40 30  
WIND DIR S S S S S S S S S S S SW SW S S S S  
WIND (MPH) 11 12 12 11 10 11 12 12 13 13 13 10 8 9 9 10 11  
WIND GUST (MPH) 28 31  
PRECIP PROB (%) 5 60 20 90 30 5 0 0 70 70 100 100 70 70 40 40 70  
PRECIP TYPE R R R R R S S S S S S S S  
6 HOUR QPF 0.02 0.11 0.06 0.01 0.17 0.23 0.03 0.01  
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.1 0.4 0.2 0.1  
12 HOUR SNOW 0.0 0.0 0.5 0.3  
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
SNOW LEVEL (KFT) 7.4 8.0 6.4 6.9 6.7 6.3 6.4 6.8 6.9 5.6 5.1 4.5 4.4 3.9 3.7 3.8 4.1  
 
   
..MOUNT BAKER SKI AREA
 
 
DATE FRIDAY 12/20/24 SATURDAY 12/21/24  
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 SC SC BK BK OV OV OV OV OV OV OV  
CLOUD COVER (%) 80 70 90 85 85 80 45 25 55 70 100 100 95 95 80 75 75  
TEMPERATURE 38 38 39 40 39 38 38 38 38 38 37 35 34 35 34 34 33  
MAX/MIN TEMP 41 36 40 31  
WIND DIR S S S S S S S S S E SE S S SW S S SE  
WIND (MPH) 10 12 12 11 11 11 11 13 17 18 12 9 9 8 8 8 10  
WIND GUST (MPH) 28 28  
PRECIP PROB (%) 0 5 90 20 50 20 10 0 30 30 100 100 90 90 40 40 30  
PRECIP TYPE R R R R R R S S S S S S S  
6 HOUR QPF 0.02 0.10 0.17 0.01 0.06 0.67 0.31 0.04  
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.7 1.3 0.3  
12 HOUR SNOW 0.0 0.0 0.7 1.6  
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
SNOW LEVEL (KFT) 6.0 7.7 7.5 6.6 6.1 6.2 6.3 6.4 6.3 5.9 5.1 4.5 4.4 4.3 4.0 3.9 3.6  
 
   
..STEVENS PASS
 
 
DATE FRIDAY 12/20/24 SATURDAY 12/21/24  
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 BK OV OV OV OV OV SC SC BK OV OV OV OV OV BK BK BK  
CLOUD COVER (%) 65 80 85 85 80 75 30 35 70 75 100 100 90 85 65 65 65  
TEMPERATURE 33 32 33 37 35 34 33 31 32 32 32 32 32 32 31 29 29  
MAX/MIN TEMP 37 31 33 27  
WIND DIR E NE E SE SE E SE E E E E NW W W W W S  
WIND (MPH) 2 4 3 4 4 3 4 5 8 9 5 3 4 4 4 2 2  
WIND GUST (MPH)  
PRECIP PROB (%) 0 20 30 20 30 5 0 0 50 50 100 100 80 80 20 20 30  
PRECIP TYPE S R R R S S S S S S S S S  
6 HOUR QPF 0.01 0.00 0.00 0.00 0.03 0.36 0.10 0.01  
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 1.9 0.8 0.1  
12 HOUR SNOW 0.0 0.0 1.9 0.9  
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
SNOW LEVEL (KFT) 7.0 7.7 7.2 6.4 6.1 6.4 6.5 6.5 6.1 5.4 4.8 4.4 4.4 4.2 4.0 3.8 3.6  
 
   
..SNOQUALMIE PASS (3000 FEET)
 
 
DATE FRIDAY 12/20/24 SATURDAY 12/21/24  
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 BK BK OV OV OV BK FW SC OV OV OV OV OV OV BK BK BK  
CLOUD COVER (%) 50 70 80 80 80 55 10 50 75 75 100 100 85 85 65 50 60  
TEMPERATURE 34 35 36 38 37 36 34 34 34 34 34 34 35 34 32 31 29  
MAX/MIN TEMP 39 33 36 29  
WIND DIR E E E E SE SE E E E E SE S W W W E E  
WIND (MPH) 3 4 4 4 4 4 4 5 5 6 5 3 2 2 1 1 2  
WIND GUST (MPH)  
PRECIP PROB (%) 5 50 20 20 30 5 0 0 60 60 100 100 80 80 20 20 40  
PRECIP TYPE R R R R R R S S S R S R R  
6 HOUR QPF 0.01 0.00 0.00 0.00 0.06 0.32 0.07 0.01  
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0  
12 HOUR SNOW 0.0 0.0 0.0 0.0  
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
SNOW LEVEL (KFT) 7.7 7.4 7.1 6.5 6.1 6.6 6.6 6.6 6.4 5.5 4.7 4.3 4.4 4.2 4.0 3.8 3.7  
 
   
..WHITE PASS
 
 
DATE FRIDAY 12/20/24 SATURDAY 12/21/24  
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 BK OV OV OV BK SC FW SC OV OV OV OV OV OV OV OV OV  
CLOUD COVER (%) 70 80 75 75 70 25 10 45 80 80 100 100 85 80 75 75 75  
TEMPERATURE 35 35 35 37 37 34 32 32 33 32 32 32 32 31 30 29 29  
MAX/MIN TEMP 39 31 34 28  
WIND DIR S SE SE S SE SE SE SE E E S W W W W SW S  
WIND (MPH) 4 5 5 5 5 5 6 9 11 10 5 6 8 8 6 5 4  
WIND GUST (MPH) 28 27 25  
PRECIP PROB (%) 5 50 30 20 20 0 0 5 70 70 100 100 70 70 30 30 40  
PRECIP TYPE R R R R R S S S S S S S S  
6 HOUR QPF 0.01 0.00 0.00 0.00 0.06 0.28 0.09 0.01  
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.1 2.0 0.8 0.1  
12 HOUR SNOW 0.0 0.0 2.1 0.9  
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
SNOW LEVEL (KFT) 7.6 7.4 6.8 6.3 6.2 6.4 6.6 6.5 6.3 5.3 4.9 4.6 4.5 4.2 4.0 3.9 4.0  
 
   
..PARADISE (MOUNT RAINIER - 5420 FEET)
 
 
DATE FRIDAY 12/20/24 SATURDAY 12/21/24  
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 SC FW BK OV OV OV OV OV OV OV OV OV  
CLOUD COVER (%) 70 85 80 75 80 45 20 60 80 85 100 100 85 85 75 75 80  
TEMPERATURE 37 38 39 40 39 37 38 39 36 35 33 33 31 30 29 29 29  
MAX/MIN TEMP 42 32 38 28  
WIND DIR W W W SW W W W NW N E S SW W W SW S SE  
WIND (MPH) 8 9 10 9 6 8 9 13 12 17 9 8 8 8 6 6 9  
WIND GUST (MPH) 29 24  
PRECIP PROB (%) 10 50 30 20 20 5 0 0 70 70 100 100 80 80 30 30 50  
PRECIP TYPE R R R R R S S S S S S S S  
6 HOUR QPF 0.02 0.00 0.04 0.00 0.16 0.59 0.13 0.01  
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.2 4.4 1.3 0.1  
12 HOUR SNOW 0.0 0.0 4.6 1.4  
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
SNOW LEVEL (KFT) 7.8 7.4 6.6 6.3 6.1 6.4 6.6 6.6 6.6 5.8 5.1 4.6 4.5 4.2 3.8 3.9 4.1  
 

 
 
--- PRECIP TYPE CODES ---  
 
CODE TYPE  
T THUNDERSTORMS  
R RAIN  
S SNOW  
I SLEET  
Z FREEZING RAIN  
 
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