Avalanche Weather Guidance
Issued by NWS Seattle/Tacoma, WA

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716
FWUS46 KSEW 110934
AVGSEW

AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE SEATTLE WA
134 AM PST THU DEC 11 2025


...HURRICANE RIDGE...

DATE                    THURSDAY 12/11/25                       FRIDAY 12/12/25
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 (%)    90   90   90   90   95   95   95   90   90   75   85   85   90   85   85   75   75
TEMPERATURE        34   33   33   33   33   33   35   35   36   38   38   39   38   37   35   35   35
MAX/MIN TEMP                           35                  33                  40                  33
WIND DIR            W    W    W    W   NW    W   SW   SW   SW   SW   SW    W   SW   SW   SW   SW    S
WIND (MPH)         11    8    4    2    1    2    3    4    4    4    4    3    3    6    8    8    8
WIND GUST (MPH)
PRECIP PROB (%)    60   50   40   60   70   40   60   60   60   60   50   50   40   40   30   30   20
PRECIP TYPE         S    S    S    R    R    R    R    R    R    R    R    R    R    R    R    R    R
6 HOUR QPF                 0.06      0.06      0.08      0.04      0.03      0.01      0.00      0.00
6 HOUR SNOW                 0.2       0.0       0.0       0.0       0.0       0.0       0.0       0.0
12 HOUR SNOW                          0.2                 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)  4.7  4.7  5.0  5.4  6.9  8.0  8.0  7.7  7.1  6.7  6.5  6.4  6.2  6.1  6.3  6.6  6.4


...MOUNT BAKER SKI AREA...

DATE                    THURSDAY 12/11/25                       FRIDAY 12/12/25
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 (%)    85   90   85   85   80   90   95   90   95   95  100  100   90   90   85   85   80
TEMPERATURE        34   33   32   32   32   32   32   33   33   35   35   36   37   37   38   37   37
MAX/MIN TEMP                           34                  31                  38                  35
WIND DIR            W   SW    S   SW    S    S    S    S    S    S   SW   SW   SW   SW   SW   SW    S
WIND (MPH)         12    9    6    4    3    3    3    3    4    4    5    5    6    6    5    5    5
WIND GUST (MPH)
PRECIP PROB (%)    60   40   20   30   20   30   80   50   90   90  100  100   90   90   70   70   40
PRECIP TYPE         S    S    S    S    S    S    S    S    R    R    R    R    R    R    R    R    R
6 HOUR QPF                 0.01      0.01      0.02      0.06      0.07      0.08      0.10      0.04
6 HOUR SNOW                 0.0       0.1       0.1       0.3       0.0       0.0       0.0       0.0
12 HOUR SNOW                          0.1                 0.4                 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)  4.0  3.5  3.5  3.5  3.3  3.4  4.1  5.2  6.4  6.7  6.5  6.4  5.9  5.8  5.8  6.0  6.0


...STEVENS PASS...

DATE                    THURSDAY 12/11/25                       FRIDAY 12/12/25
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   85   75   80   85   85   90   90   90   85   85   80   80   80   80   80
TEMPERATURE        36   33   32   34   34   34   35   36   37   38   38   40   40   39   39   38   36
MAX/MIN TEMP                           36                  34                  40                  34
WIND DIR            W    W    W    W    W    W    W    W    W    W    W    W    W    W    W    W    W
WIND (MPH)         11    9    6    5    5    4    4    4    4    4    5    6    6    8    8    5    3
WIND GUST (MPH)
PRECIP PROB (%)   100   90   80   40   50   60   70   70   80   80   80   80   50   50   30   30   10
PRECIP TYPE         S    S    S    S    S    R    R    R    R    R    R    R    R    R    R    R
6 HOUR QPF                 0.71      0.12      0.09      0.14      0.11      0.08      0.02      0.01
6 HOUR SNOW                 2.0       0.3       0.0       0.0       0.0       0.0       0.0       0.0
12 HOUR SNOW                          2.3                 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)  4.9  4.0  4.1  4.8  5.4  6.7  7.6  7.6  7.3  6.9  6.7  6.5  6.3  6.2  6.0  6.1  5.9


...SNOQUALMIE PASS (3000 FEET)...

DATE                    THURSDAY 12/11/25                       FRIDAY 12/12/25
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  100   90   80   80   85   85   90   90   85   80   80   75   75   80   75   70
TEMPERATURE        41   37   36   38   39   38   39   39   40   42   42   43   43   42   42   40   38
MAX/MIN TEMP                           41                  37                  45                  36
WIND DIR            W   NW   NW   NW   NW   NW   NW    W    W    W    W    W    W    W    W    W    W
WIND (MPH)          5    3    3    3    2    1    1    1    1    1    3    4    4    3    3    2    1
WIND GUST (MPH)
PRECIP PROB (%)   100  100   80   50   60   60   70   70   70   70   70   70   50   50   30   30   10
PRECIP TYPE         R    R    R    R    R    R    R    R    R    R    R    R    R    R    R    R
6 HOUR QPF                 0.82      0.18      0.14      0.17      0.08      0.07      0.04      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)  6.2  5.4  6.6  6.7  7.5  8.0  8.1  7.9  7.4  7.1  6.8  6.5  6.4  6.2  6.1  6.2  6.1


...WHITE PASS...

DATE                    THURSDAY 12/11/25                       FRIDAY 12/12/25
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   BK   BK   BK   BK   BK   BK   BK
CLOUD COVER (%)    95   90   90   80   85   85   85   85   80   75   65   65   65   60   65   60   55
TEMPERATURE        42   40   39   40   40   40   41   41   41   40   40   42   41   39   38   36   35
MAX/MIN TEMP                           42                  39                  43                  35
WIND DIR            W    W    W    W    W    W    W    W    W    W    W    W    W    W    W    W    W
WIND (MPH)         17   14   10    8    5    5    5    5    5    6    6    6    6    9    8    6    4
WIND GUST (MPH)    36   32
PRECIP PROB (%)    90   90   80   70   80   70   50   40   40   40   30   30   20   20   10   10    5
PRECIP TYPE         R    R    R    R    R    R    R    R    R    R    R    R    R    R
6 HOUR QPF                 0.53      0.30      0.32      0.18      0.03      0.00      0.00      0.00
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)  8.5  8.5  8.4  8.3  8.5  8.6  8.5  8.0  7.4  7.0  6.8  6.5  6.5  6.4  6.2  6.3  6.2


...PARADISE (MOUNT RAINIER - 5420 FEET) ...

DATE                    THURSDAY 12/11/25                       FRIDAY 12/12/25
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   BK   BK   BK   BK   BK   BK   SC
CLOUD COVER (%)   100  100   95   80   90   90   85   85   70   70   60   60   55   60   55   55   45
TEMPERATURE        40   37   36   38   37   38   39   39   39   38   38   39   38   37   37   37   35
MAX/MIN TEMP                           40                  37                  40                  33
WIND DIR            W    W    W    W    W    W    W    W    W    W    W    W    W    W    W   SW   SW
WIND (MPH)         19   14   10    9    6    6    6    6    6    5    6    8    9    9    8    6    5
WIND GUST (MPH)
PRECIP PROB (%)   100  100   90   60   80   80   70   40   60   60   40   40   30   30   20   20    5
PRECIP TYPE         R    R    R    R    R    R    R    R    R    R    R    R    R    R    R    R
6 HOUR QPF                 1.13      0.58      0.55      0.21      0.02      0.00      0.00      0.00
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)  8.2  8.2  8.2  8.3  8.5  8.6  8.5  8.0  7.3  7.0  6.7  6.5  6.4  6.2  6.1  6.3  6.2

$$

--- PRECIP TYPE CODES ---

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