Avalanche Weather Guidance
Issued by NWS Portland, OR

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436
FWUS46 KPQR 102104
AVGPQR

Avalanche Weather Guidance
National Weather Service Portland OR
203 PM PDT Thu Sep 10 2026


...Mount St. Helens...

Date                                        Friday 09/11/26                         Saturday 09/12/26
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        OV   SC   FW   FW   BK   BK   BK   OV   OV   OV   OV   OV   OV   OV   BK   OV   OV
Cloud Cover (%)    90   35   25   25   65   55   60   85   90   90   95   95   95   70   60   75   85
Temperature        50   44   39   37   37   38   43   47   47   43   42   43   43   42   44   43   42
Min/Max Temp                           36                  47                  41                  44
Wind Dir           NW   NW   NW   NW   NW   NW    W    W   NW    N   NE    E   SE   SW   SW    W    W
Wind (mph)          8    6    6    4    4    4    3    3    2    2    3    3    4    3    4    4    3
Wind Gust (mph)    13             10   10                                                10   10    9
Precip Prob (%)     0    0    0    0    0    0    0    0    0    0    0    0    0    0   40   40   80
Precip Type                                                                               R    R    R
6 Hour QPF                 0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.11
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                  MM                  MM                  MM
 High End Snow                        0.0                  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)  7.1  6.4  5.8  5.7  5.8  5.8  6.2  6.8  7.0  6.8  6.5  6.4  6.5  6.9  7.0  7.0  7.1


...Mount Hood...

Date                                        Friday 09/11/26                         Saturday 09/12/26
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        OV   BK   FW   FW   OV   BK   SC   SC   OV   OV   OV   OV   OV   BK   BK   BK   OV
Cloud Cover (%)    75   65   20   20   70   70   35   40   85   90   90   95   95   55   55   65   85
Temperature        48   44   41   36   33   34   40   43   43   38   38   38   38   39   39   38   35
Min/Max Temp                           33                  45                  37                  41
Wind Dir            W    W    W    W    W    W    W    W    W   SW   SW   SW   SW    W    W    W    W
Wind (mph)         16   17   18   16   13   10    4    5    4    4    5    4    4    5    4    4    9
Wind Gust (mph)    31   28   29   25   21   17   12   16   13             10        11   12   16   19
Precip Prob (%)     0    0    0    0    0    0    0    0    0    0    0    0    5    5   30   30   80
Precip Type                                                                               S    S    S
6 Hour QPF                 0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.03
6 Hour Snow                 0.0       0.0       0.0       0.0       0.0       0.0       0.0       0.1
12 Hour Snow                          0.0                 0.0                 0.0                 0.1
 Low End Snow                         0.0                  MM                  MM                  MM
 High End Snow                        0.0                  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) 10.6  9.6  7.2  6.0  5.8  6.0  6.5  7.0  6.9  6.8  6.8  6.7  6.9  6.8  7.2  7.3  7.3

$$

--- Precip Type Codes ---

CODE   TYPE
 T     Thunderstorms
 R     Rain
 S     Snow
 I     Sleet
 Z     Freezing Rain