Avalanche Weather Guidance
Issued by NWS Flagstaff, AZ

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096
FWUS45 KFGZ 122205
AVGFGZ

AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
304 PM MST SAT SEP 12 2026


...AGASSIZ PEAK...

DATE                                        SUNDAY 09/13/26                         MONDAY 09/14/26
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   FW   CL   FW   FW   OV   OV   SC   SC   SC   SC   BK   SC   BK   BK   SC
CLOUD COVER (%)    30   25   10    5   20   20   75   75   35   35   40   40   65   40   65   65   35
TEMPERATURE        54   49   47   45   44   46   53   53   51   47   46   45   44   45   50   53   51
MIN/MAX TEMP                           44                  55                  44                  53
WIND DIR            W    W   SW   SW    S   SW   SW   SW   SW   SW   SW   SW   SW   SW   SW   SW   SW
WIND (MPH)          8   10    8    8    8    5    8   12   12   12   13   12   12   13   14   14   14
WIND GUST (MPH)    13                            16   19   20   19   19             20   24   24   21
PRECIP PROB (%)    10   10    5    5   10   10   60   60   20   20   20   20   20   20   30   30   10
PRECIP TYPE         T                        T    R    R    T    T    R    R    R    T    T    T    T
6 HOUR QPF                 0.00      0.00      0.00      0.11      0.02      0.01      0.01      0.05
12 HOUR QPF                          0.00                0.11                0.03                0.06
 LOW END QPF                           MM                  MM                  MM                  MM
 HIGH END QPF                          MM                  MM                  MM                  MM
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
 LOW END SNOW                          MM                  MM                  MM                  MM
 HIGH END SNOW                         MM                  MM                  MM                  MM
6 HOUR ICE                 0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00
SNOW LEVEL (KFT) 14.8 14.6 14.4 14.1 14.2 14.3 14.7 14.8 14.9 14.7 14.5 14.3 14.4 14.2 14.3 14.5 14.5
SNOW RATIO (:1)     0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0

DATE                         TUE 09/15/26        WED 09/16/26        THU 09/17/26        FRI 09/18/26        SAT 09/19/26
TIME (LT)          23   05   11   17   23   05   11   17   23   05   11   17   23   05   11   17   23   05   11   17
                   11P  5A   11A  5P   11P  5A   11A  5P   11P  5A   11A  5P   11P  5A   11A  5P   11P  5A   11A  5P

CLOUD COVER        SC   SC   SC   SC   FW   SC   BK   SC   SC   SC   BK   SC   FW   FW   BK   SC   FW   FW   SC   SC
CLOUD COVER (%)    35   35   40   30   20   40   60   40   35   40   55   40   20   25   50   35   20   20   35   30
TEMPERATURE        44   43   49   51   43   42   50   51   43   42   50   52   44   42   52   53   44   43   53   53
MAX/MIN TEMP            43        53        42        53        42        54        42        55        42        56
WIND DIR           SW   SW   SW   SW   SW   SW   SW   SW   SW   SW    S   SW   SW    W    E    E    S   SE    E   SE
WIND (MPH)         11   11   10   12   11    8    8    5    6    5    5    5    4    3    4    4    3    3    4    4
WIND GUST (MPH)              18   19             13   11             11                  10
PRECIP PROB (%)    20   20   20   10   10   20   40   20    5   20   40   10    5    5   30   10    0    5   20   10
PRECIP TYPE         R    R    T         T    R    T    T         T    T    T              T    T              T
12 HOUR QPF           0.02      0.03
12 HOUR SNOW           0.0       0.0
12 HOUR ICE           0.00      0.00
SNOW LEVEL (KFT) 14.0 14.1 14.0 14.2 13.9 13.7 14.0 14.3 13.9 13.7 14.0 14.2 13.8 13.5 13.6 13.7 13.4 13.0 13.2 13.4
SNOW RATIO (:1)     0    0    0    1    1    1    1    1    1    1    1    1    1    1    1    1    1    1    1    0


...INNER BASIN...

DATE                                        SUNDAY 09/13/26                         MONDAY 09/14/26
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   FW   CL   FW   FW   OV   OV   SC   SC   SC   SC   BK   SC   BK   BK   SC
CLOUD COVER (%)    30   25   10    5   20   20   75   75   40   30   35   35   60   40   65   65   35
TEMPERATURE        61   54   50   49   48   55   66   64   59   53   51   50   49   53   64   62   59
MIN/MAX TEMP                           48                  67                  48                  65
WIND DIR            W    W   SW   SW   SW   SW   SW   SW   SW   SW   SW   SW   SW   SW   SW   SW   SW
WIND (MPH)          6    9    8    8    6    5    8   11   11   12   12   11   10   11   13   13   12
WIND GUST (MPH)    12   14                       14   18   20   19   20   17        19   24   23   21
PRECIP PROB (%)    10   10    5    5   10   10   60   60   20   20   10   10   20   20   30   30   10
PRECIP TYPE         T                        T    R    R    T    T              R    T    T    T    T
6 HOUR QPF                 0.00      0.00      0.00      0.11      0.02      0.00      0.01      0.02
12 HOUR QPF                          0.00                0.11                0.02                0.03
 LOW END QPF                           MM                  MM                  MM                  MM
 HIGH END QPF                          MM                  MM                  MM                  MM
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
 LOW END SNOW                          MM                  MM                  MM                  MM
 HIGH END SNOW                         MM                  MM                  MM                  MM
6 HOUR ICE                 0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00
SNOW LEVEL (KFT) 14.8 14.6 14.5 14.1 14.2 14.3 14.7 14.8 14.9 14.7 14.5 14.2 14.4 14.2 14.3 14.5 14.5
SNOW RATIO (:1)     0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0

DATE                         TUE 09/15/26        WED 09/16/26        THU 09/17/26        FRI 09/18/26        SAT 09/19/26
TIME (LT)          23   05   11   17   23   05   11   17   23   05   11   17   23   05   11   17   23   05   11   17
                   11P  5A   11A  5P   11P  5A   11A  5P   11P  5A   11A  5P   11P  5A   11A  5P   11P  5A   11A  5P

CLOUD COVER        SC   SC   SC   SC   FW   SC   BK   SC   SC   SC   BK   SC   FW   FW   SC   SC   FW   FW   SC   SC
CLOUD COVER (%)    30   35   40   25   20   40   60   40   30   35   55   45   20   25   50   40   20   20   30   35
TEMPERATURE        49   46   64   59   48   46   62   59   48   46   63   60   48   46   64   61   49   47   65   62
MAX/MIN TEMP            46        65        45        65        45        66        46        67        46        67
WIND DIR           SW   SW   SW   SW   SW   SW   SW   SW   SW   SW    S   SW   SW    W    E    E    S   SW    E    E
WIND (MPH)         10   10    9   11   10    6    8    5    5    4    5    5    4    3    5    4    2    2    5    4
WIND GUST (MPH)    16        17   19   16        13                  11
PRECIP PROB (%)    20   20   20   10   10   20   40   20    5   20   40   10    5    5   30   10    0    5   20   10
PRECIP TYPE         R    R    T              R    T    T         T    T    T              T    T              T
12 HOUR QPF           0.02      0.02
12 HOUR SNOW           0.0       0.0
12 HOUR ICE           0.00      0.00
SNOW LEVEL (KFT) 13.9 14.1 14.1 14.2 13.8 13.7 14.0 14.3 13.9 13.7 14.0 14.2 13.8 13.5 13.6 13.7 13.4 13.0 13.1 13.4
SNOW RATIO (:1)     0    0    0    1    1    1    1    1    1    1    1    1    1    1    1    1    1    1    1    0

$$

--- PRECIP TYPE CODES ---

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