Avalanche Weather Guidance
Issued by NWS Pendleton, OR

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052
FWUS46 KPDT 302156
AVGPDT

AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE PENDLETON OR
256 PM PDT SAT AUG 30 2025


...BROKEN TOP...

DATE                                        SUNDAY 08/31/25                         MONDAY 09/01/25
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   BK   SC   SC   BK   SC   SC   SC   FW   FW   FW   FW   FW   FW   FW   FW   FW
CLOUD COVER (%)    85   60   40   40   55   25   40   35   20   20   20   15   20   15   20   15   10
TEMPERATURE        66   57   54   53   52   53   62   67   66   56   52   52   51   53   63   68   70
MIN/MAX TEMP                           50                  68                  50                  71
WIND DIR            W    N    N   NE   SE    S    S   SW    W    W   NW   SW    S   SE   SE    S    W
WIND (MPH)          5    5    5    4    4    3    5    6    6    5    4    3    3    4    4    5    5
WIND GUST (MPH)
PRECIP PROB (%)     5    5    0    0    0    0    0    0    5    5    0    0    0    0    0    0    5
PRECIP TYPE
6 HOUR QPF                 0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.01
6 HOUR SNOW                 0.0       0.0       0.0       0.0       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) 11.9 11.7 11.7 11.5 11.2 10.9 11.3 12.0 11.8 11.8 11.6 11.1 11.2 10.9 10.9 11.8 12.3


...TAM MCARTHUR RIM...

DATE                                        SUNDAY 08/31/25                         MONDAY 09/01/25
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   BK   SC   SC   BK   SC   SC   SC   FW   FW   FW   FW   FW   FW   FW   FW   FW
CLOUD COVER (%)    80   55   40   35   60   25   40   30   20   20   20   15   20   15   20   15   10
TEMPERATURE        67   58   54   53   53   54   63   68   67   57   53   52   51   54   64   70   71
MIN/MAX TEMP                           51                  69                  50                  71
WIND DIR            W    N    N    W    S    S    S   SW   NW    W   NW   SW    S   SE   SE    S    W
WIND (MPH)          5    5    5    5    4    3    5    5    6    5    4    3    3    4    4    4    5
WIND GUST (MPH)
PRECIP PROB (%)     5    5    0    0    0    0    0    0    5    5    0    0    0    0    0    0    5
PRECIP TYPE
6 HOUR QPF                 0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.02
6 HOUR SNOW                 0.0       0.0       0.0       0.0       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) 11.9 11.8 11.8 11.5 11.2 10.9 11.3 11.9 11.9 11.8 11.6 11.1 11.2 10.9 10.9 11.8 12.3


...NEWBERRY CRATER...

DATE                                        SUNDAY 08/31/25                         MONDAY 09/01/25
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   SC   BK   BK   SC   SC   SC   SC   FW   FW   FW   FW   FW   FW   FW   FW
CLOUD COVER (%)    80   75   35   50   70   45   45   35   30   20   15   10   20   15    5   10   10
TEMPERATURE        71   64   57   55   53   54   62   69   72   63   55   54   52   53   63   72   74
MIN/MAX TEMP                           52                  73                  51                  75
WIND DIR           SW    N   NE   SE    S    S    S   SW    W   NW    N   NW    S   SE    S    S   SW
WIND (MPH)          6    8    8    5    4    4    9   11    9    5    5    4    3    4    5    6    6
WIND GUST (MPH)
PRECIP PROB (%)     5    5    0    0    0    0    0    5    0    0    0    0    0    0    0    0    5
PRECIP TYPE
6 HOUR QPF                 0.00      0.00      0.00      0.00      0.00      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
6 HOUR ICE                 0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00
SNOW LEVEL (KFT) 12.0 12.2 12.3 12.0 11.8 11.7 11.7 12.1 12.0 11.8 11.7 11.2 11.0 10.8 11.0 11.8 12.3


...WALLOWA MOUNTAINS (8,000 FT TO 9,000 FT)...

DATE                                        SUNDAY 08/31/25                         MONDAY 09/01/25
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        SC   FW   SC   SC   BK   FW   FW   SC   SC   SC   SC   SC   SC   FW   FW   FW   FW
CLOUD COVER (%)    50   25   40   40   60   20   20   40   35   30   35   30   25   15   15   20   20
TEMPERATURE        65   58   55   56   56   58   66   69   68   60   58   58   57   59   68   71   70
MIN/MAX TEMP                           54                  70                  56                  72
WIND DIR            S    S    S    S    S    S    S    S    S    S    S    S    S    S    S    S    S
WIND (MPH)          8    9    8    9   10    9   12   11   10    6    8    9    9    8    6    6    5
WIND GUST (MPH)
PRECIP PROB (%)     5    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0
PRECIP TYPE
6 HOUR QPF                 0.00      0.00      0.00      0.00      0.00      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
6 HOUR ICE                 0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00
SNOW LEVEL (KFT) 12.2 12.0 11.9 11.8 11.8 11.8 11.7 11.9 11.9 11.7 11.8 12.1 12.1 12.1 12.1 12.2 12.4


...SALT CREEK AREA (5,000 FT TO 7,000 FT)...

DATE                                        SUNDAY 08/31/25                         MONDAY 09/01/25
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        SC   FW   SC   SC   SC   FW   FW   SC   SC   SC   SC   SC   SC   FW   FW   FW   FW
CLOUD COVER (%)    45   25   35   35   50   20   20   35   30   30   35   25   25   10   10   15   15
TEMPERATURE        73   64   61   61   60   64   74   77   76   66   63   63   61   65   76   79   78
MIN/MAX TEMP                           59                  77                  61                  80
WIND DIR            S    S    S    S    S    S    S    S    S    S    S   SW    S    S    S    S    S
WIND (MPH)          8    8    6    8    8    8   10   10    8    6    6    8    8    6    6    6    5
WIND GUST (MPH)
PRECIP PROB (%)     5    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0
PRECIP TYPE
6 HOUR QPF                 0.00      0.00      0.00      0.00      0.00      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
6 HOUR ICE                 0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00
SNOW LEVEL (KFT) 12.1 11.8 11.9 11.8 11.8 11.8 11.7 11.9 11.9 11.8 11.9 12.1 12.1 12.1 12.1 12.2 12.4


...CLEAR CREEK AREA (6,000 FT TO 8,000 FT)...

DATE                                        SUNDAY 08/31/25                         MONDAY 09/01/25
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        SC   SC   SC   SC   SC   FW   FW   SC   SC   SC   SC   FW   SC   FW   FW   FW   FW
CLOUD COVER (%)    30   25   35   40   45   15   20   30   35   30   40   25   25   10   10   10   15
TEMPERATURE        70   62   58   58   57   61   69   73   72   64   61   60   58   63   71   75   75
MIN/MAX TEMP                           57                  73                  58                  75
WIND DIR            S    S   SE    S    S    S    S    S    S    E    N    N    N   SE    S    S    S
WIND (MPH)          8    5    5    5    5    6   10   10    6    5    5    5    5    5    8    8    5
WIND GUST (MPH)
PRECIP PROB (%)     0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0
PRECIP TYPE
6 HOUR QPF                 0.00      0.00      0.00      0.00      0.00      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
6 HOUR ICE                 0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00
SNOW LEVEL (KFT) 12.0 11.9 11.9 11.8 11.8 11.8 11.7 11.9 11.8 11.8 11.9 12.1 12.1 12.0 12.1 12.0 12.3


...CATHERINE CREEK AREA (6,000 FT TO 8,000 FT)...

DATE                                        SUNDAY 08/31/25                         MONDAY 09/01/25
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        SC   SC   SC   BK   BK   FW   FW   SC   SC   SC   SC   FW   FW   FW   FW   FW   FW
CLOUD COVER (%)    40   30   40   55   60   20   20   30   30   35   45   20   20   10   10   15   10
TEMPERATURE        71   62   60   60   60   62   70   73   73   65   63   62   61   63   71   75   76
MIN/MAX TEMP                           59                  74                  60                  76
WIND DIR            S   SE   SE   SE   SE   SE    S    S   SE   SE    E    E    E   SE    S    S    S
WIND (MPH)          9    8    8    8    9    9   11   12   10    6    8    8    8    6    9    9    6
WIND GUST (MPH)
PRECIP PROB (%)     5    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0
PRECIP TYPE
6 HOUR QPF                 0.00      0.00      0.00      0.00      0.00      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
6 HOUR ICE                 0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00
SNOW LEVEL (KFT) 12.1 12.1 11.9 11.9 11.9 11.7 11.7 11.9 11.9 11.9 12.0 12.2 12.1 12.0 12.1 12.1 12.3


...NORWAY AREA (7,000 FT TO 10,000 FT)...

DATE                                        SUNDAY 08/31/25                         MONDAY 09/01/25
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        SC   FW   SC   SC   SC   FW   SC   SC   SC   SC   SC   FW   FW   FW   FW   FW   FW
CLOUD COVER (%)    35   25   35   45   50   15   25   30   35   30   35   25   25   15   10   10   15
TEMPERATURE        64   58   56   55   55   57   64   67   67   60   58   57   56   59   66   69   70
MIN/MAX TEMP                           54                  68                  56                  70
WIND DIR            S    S    E   SE    S    S    S    S    S    E   NE   NE    E   SE    S    S    S
WIND (MPH)          8    6    5    6    8    8   11   11    8    6    6    6    8    8    9    9    6
WIND GUST (MPH)
PRECIP PROB (%)     0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0
PRECIP TYPE
6 HOUR QPF                 0.00      0.00      0.00      0.00      0.00      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
6 HOUR ICE                 0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00
SNOW LEVEL (KFT) 12.0 12.0 11.9 11.8 11.8 11.8 11.7 11.9 11.8 11.8 12.0 12.1 12.1 12.1 12.1 12.1 12.3


...ANTHONY LAKES AREA (8,000 FT TO 10,000 FT)...

DATE                                        SUNDAY 08/31/25                         MONDAY 09/01/25
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        SC   SC   BK   OV   BK   SC   SC   SC   SC   SC   SC   SC   SC   FW   FW   FW   FW
CLOUD COVER (%)    50   45   55   80   65   35   30   30   40   40   35   30   30   10   10   20   25
TEMPERATURE        65   57   57   57   57   57   64   68   67   59   60   60   58   57   65   69   70
MIN/MAX TEMP                           55                  70                  56                  71
WIND DIR            S    S    S    S    S    S   SE   SE   SE   SE   SE   SE   SE   SE   SE   SE   SE
WIND (MPH)          9    9    8    9   10   11   12   12   11    6    8    9   10   10   10    9    5
WIND GUST (MPH)
PRECIP PROB (%)     5    5    0    0    0    0    0    0    5    5    5    5    0    0    5    5    5
PRECIP TYPE
6 HOUR QPF                 0.01      0.00      0.00      0.00      0.00      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
6 HOUR ICE                 0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00
SNOW LEVEL (KFT) 12.3 12.1 12.0 11.9 11.9 11.7 11.7 12.0 12.1 12.3 12.4 12.3 12.1 11.9 12.0 12.1 12.3


...BLUE MOUNTAINS (4,000 FT TO 6,000 FT)...

DATE                                        SUNDAY 08/31/25                         MONDAY 09/01/25
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        SC   SC   SC   OV   OV   SC   SC   SC   SC   SC   SC   SC   SC   FW   FW   FW   FW
CLOUD COVER (%)    40   40   40   80   80   40   35   40   40   35   35   30   30   25   15   15   20
TEMPERATURE        80   70   66   65   64   66   78   84   83   73   68   65   63   66   79   85   84
MIN/MAX TEMP                           63                  84                  62                  86
WIND DIR            S   SE    E   SE   SE   SE    S    S    S   SE    E    E    E   SE    S    S    N
WIND (MPH)          4    3    5    6    6    5    9   10    6    4    5    4    5    4    3    4    3
WIND GUST (MPH)
PRECIP PROB (%)     5    0    0    0    0    0    0    5    5    5    5    5    0    0    0    0    0
PRECIP TYPE
6 HOUR QPF                 0.00      0.00      0.00      0.00      0.00      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
6 HOUR ICE                 0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00
SNOW LEVEL (KFT) 12.3 12.3 12.1 11.9 11.9 11.9 11.8 12.0 12.0 12.0 12.0 12.2 12.1 11.9 12.0 12.2 12.4

$$

--- PRECIP TYPE CODES ---

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