National Weather Service United States Department of Commerce

Heavy Rainfall Along the Central Gulf Coast; Critical Fire Weather Conditions in Southern California

Heavy to excessive rainfall, and the potential for scattered flash flooding is forecast through midweek along portions of the Gulf Coast and into the Southeast. A Slight Risk (level 2 of 4) of Excessive Rainfall is in effect Monday and Tuesday. Damaging Santa Ana winds and very low humidity will result in Critical Fire Weather conditions Monday and Tuesday across Southern California. Read More >

 

FWUS46 KPQR 090001
AVGPQR
FWUS46 KPQR 090001
AVGPQR

Avalanche Weather Guidance
National Weather Service Portland OR
401 PM PST Sun Dec 8 2024


...Mount St. Helens...

Date                    Monday 12/09/24                         Tuesday 12/10/24                   
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        SC   SC   CL   CL   CL   FW   FW   SC   FW   SC   SC   BK   BK   OV   OV   OV   BK
Cloud Cover (%)    40   30    5    0    0   15   15   35   20   30   45   55   60   75   75   75   65
Temperature        25   25   30   32   29   28   29   29   30   31   34   35   34   30   30   31   31
Max/Min Temp                           33                  27                  36                  30
Wind Dir            N   NW    N   NW   NE   SE   SE   SE   SE   SE   SE   SE   SE   SE   SE   SE   SE
Wind (mph)          4    5    5    2    4   11   16   17   18   17   14   10    9   13   14   14   14
Wind Gust (mph)                             17   24   26   26   26   25   18   14   21   24   23   21
Precip Prob (%)     0    0    0    0    0    0    0    0    0    0    0    0    5    5    5    5    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
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)  2.7  2.4  2.5  3.1  3.0  2.7  2.6  2.7  2.6  2.8  3.4  4.1  4.4  4.4  4.1  4.0  3.8


...Mount Hood...

Date                    Monday 12/09/24                         Tuesday 12/10/24                   
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        SC   FW   CL   CL   FW   FW   FW   SC   FW   FW   SC   BK   BK   OV   OV   OV   BK
Cloud Cover (%)    40   15    5    5    5   20   20   30   15   25   35   55   70   75   75   80   65
Temperature        19   20   27   29   25   24   25   26   28   27   31   31   29   26   27   28   28
Max/Min Temp                           31                  24                  31                  26
Wind Dir           NW   SW   SW    W   NE    S    S    S    S    S    S    S    S    S    S   SW   SW
Wind (mph)          6    5    4    3    5   10   16   18   19   20   14   11   10   13   12   11   11
Wind Gust (mph)                    9        17   23   25   26   27   24   18   16   19   18          
Precip Prob (%)     0    0    0    0    0    0    5    5    5    5    5    5    5    5   10   10    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
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)  2.5  2.3  2.5  3.2  3.0  2.8  2.9  3.1  3.0  3.0  3.5  3.6  4.0  4.1  4.1  4.1  3.8

$$

--- Precip Type Codes ---

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