Avalanche Weather Guidance
Issued by NWS Flagstaff, AZ

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643
FWUS45 KFGZ 302111
AVGFGZ

AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
209 PM MST SUN AUG 30 2026


...AGASSIZ PEAK...

DATE                                        MONDAY 08/31/26                         TUESDAY 09/01/26
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   BK   OV   OV   OV   OV   OV   BK   BK   FW   FW   FW   FW   SC   SC   SC
CLOUD COVER (%)    50   45   70   75   90   80   80   75   55   55   20   20   20   20   25   35   30
TEMPERATURE        54   52   50   48   48   47   49   49   48   47   46   45   45   43   49   53   52
MIN/MAX TEMP                           46                  50                  43                  53
WIND DIR           SW   SW   SW   SW   SW   SW    S   SW   SW   SW    W   SW   SW   SW   SW   SW   SW
WIND (MPH)         13    9    8    6    6    5    5    8    8    6    5    5    5    5    8   11   13
WIND GUST (MPH)    24   16   13   13             11   14   13             11             14   21   25
PRECIP PROB (%)    30   30   60   60   60   60   70   70   40   40   10   10    5    5   20   20   10
PRECIP TYPE         T    T    R    R    R    R    T    T    T    R                        T    T    T
6 HOUR QPF                 0.07      0.19      0.10      0.15      0.08      0.00      0.00      0.00
12 HOUR QPF                          0.26                0.25                0.08                0.00
 LOW END QPF                         0.00                0.13                0.00                0.00
 HIGH END QPF                        0.88                0.75                0.29                0.08
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                         0.0                 0.0                 0.0                 0.0
 HIGH END 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) 14.4 14.2 14.1 13.9 13.9 13.8 14.0 13.9 13.8 13.7 13.3 13.0 12.8 12.8 13.2 13.6 13.5
SNOW RATIO (:1)     0    0    0    0    0    1    0    0    0    0    0    0    0    0    0    0    0

DATE                         WED 09/02/26        THU 09/03/26        FRI 09/04/26        SAT 09/05/26        SUN 09/06/26
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        CL   FW   SC   SC   FW   FW   FW   SC   FW   SC   BK   BK   SC   SC   BK   BK   SC   SC   BK   BK
CLOUD COVER (%)     5    5   35   35   10   10   15   25   20   35   55   55   45   45   60   55   35   45   60   55
TEMPERATURE        47   46   51   51   42   40   51   53   43   42   51   52   45   43   51   52   46   44   52   53
MAX/MIN TEMP            46        53        40        55        41        55        42        55        43        55
WIND DIR           SW   SW   SW   SW   SW   SW   SW   SW   SW   SW    S   SW   SW   SW    S   SW   SW    S    S   SW
WIND (MPH)         10   16   17   13    9    9   11   12   10    6    6    8    5    4    5    4    4    4    5    5
WIND GUST (MPH)    20   29   33   19                  18
PRECIP PROB (%)     0    5   20    0    0    0    5    5    5    5   40   20   10   10   50   20   20   20   50   20
PRECIP TYPE                   T                                       T    T              T    T    R    R    T    T
12 HOUR QPF           0.00      0.00
12 HOUR SNOW           0.0       0.0
12 HOUR ICE           0.00      0.00
SNOW LEVEL (KFT) 13.0 12.9 13.6 13.8 13.2 12.9 13.5 14.0 13.6 13.7 14.0 14.5 14.2 14.1 14.6 14.7 14.6 14.5 14.7 15.0
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                                        MONDAY 08/31/26                         TUESDAY 09/01/26
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   BK   OV   OV   OV   OV   OV   BK   BK   FW   FW   FW   FW   FW   SC   SC
CLOUD COVER (%)    45   45   70   75   90   80   80   75   55   55   20   20   20   20   25   40   35
TEMPERATURE        62   58   55   53   50   51   59   60   56   51   49   47   46   51   62   62   59
MIN/MAX TEMP                           50                  60                  45                  63
WIND DIR           SW   SW   SW   SW   SW   SW    S   SW   SW   SW    W   SW   SW    S   SW   SW   SW
WIND (MPH)         13    8    8    8    5    5    6    8    6    6    5    5    5    4    6   10   11
WIND GUST (MPH)    24   14   13   14                  16   12   12                       13   20   21
PRECIP PROB (%)    30   30   60   60   60   60   70   70   30   40   10   10    5    5   20   20   10
PRECIP TYPE         T    T    R    R    R    R    T    T    T    R                        T    T
6 HOUR QPF                 0.06      0.18      0.11      0.15      0.08      0.00      0.00      0.00
12 HOUR QPF                          0.24                0.26                0.08                0.00
 LOW END QPF                         0.00                0.12                0.00                0.00
 HIGH END QPF                        0.79                0.67                0.24                0.07
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                         0.0                 0.0                 0.0                 0.0
 HIGH END 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) 14.4 14.2 14.2 13.8 13.9 13.8 14.0 13.9 13.9 13.7 13.2 12.9 12.8 12.8 13.2 13.6 13.5
SNOW RATIO (:1)     0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0

DATE                         WED 09/02/26        THU 09/03/26        FRI 09/04/26        SAT 09/05/26        SUN 09/06/26
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        CL   FW   SC   SC   FW   FW   FW   SC   FW   SC   BK   BK   SC   SC   BK   BK   SC   SC   BK   BK
CLOUD COVER (%)     5    5   30   35   10   10   15   30   15   35   55   60   40   45   60   55   30   45   60   55
TEMPERATURE        50   48   63   58   45   43   63   60   47   45   63   59   48   46   63   59   50   48   64   61
MAX/MIN TEMP            48        64        42        67        44        68        45        67        46        68
WIND DIR           SW   SW   SW   SW   SW   SW   SW   SW   SW   SW    S   SW   SW   SW    S   SW   SW    S    S   SW
WIND (MPH)         10   14   16   12    8    6   11   11    9    5    8    8    4    4    5    4    3    3    5    5
WIND GUST (MPH)    20   27   31   18
PRECIP PROB (%)     0    5   20    0    0    0    5    5    5    5   40   20   10   10   50   20   20   20   50   20
PRECIP TYPE                   T                                       T    T              T    T    R    R    T    T
12 HOUR QPF           0.00      0.00
12 HOUR SNOW           0.0       0.0
12 HOUR ICE           0.00      0.00
SNOW LEVEL (KFT) 13.0 12.9 13.6 13.8 13.2 12.9 13.5 14.0 13.6 13.7 14.1 14.5 14.2 14.1 14.6 14.7 14.6 14.5 14.7 15.0
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