Storm Summary Number 7 for West Coast Atmospheric River
NWS Weather Prediction Center College Park MD
700 AM PST Wed Feb 05 2025

...Multi-day atmospheric river event comes to an end for the
western U.S... 

Winter Storm Warnings are in effect across portions of the
northern California/southern Oregon Coastal Ranges,
central/southern Sierra Nevada and portions of northeastern Oregon
into the northern Rockies.

Winter Weather Advisories are in effect across northwestern
California and western Oregon.

Flood Watches and Flood Warnings are in effect over portions of
north-central California.

For a detailed graphical depiction of the latest watches, warnings
and advisories, please see www.weather.gov

At 600 AM PST...regional radar imagery and surface observations
showed light rain and high elevation snow lingering across the
southern Sierra Nevada into southern California as a cold front
moves through the region. Scattered rain and snow showers were
also occurring from northern California and western Oregon into
the northern Rockies. Precipitation intensity was waning across
most regions as an upper level trough and cold front move across
the western U.S., and what remains of the atmospheric river was
rapidly weakening. 

...Selected preliminary Storm Total Snowfall in inches from 600 AM
PST Fri Jan 31 through 600 AM PST Tue Feb 04...

...CALIFORNIA...
DAVIS CREEK                          18.0                    
SODA SPRINGS                         16.3                    
KINGVALE                             14.0                    
HEAVENLY SKI BASE                     7.0                    

...IDAHO...
GALENA                               33.0                    
HAILEY 3 WSW                         28.0                    
LOST TRAIL PASS                      24.0                    
BELLEVUE                             22.0                    
CRATERS OF MOON                      16.0                    
ELBA 6 NNW                           14.0                    

...MONTANA...
COOKE CITY                           32.0                    
PINESDALE 2 SE                       24.0                    
LUTHER                               14.0                    
BILLINGS                              8.5                    

...OREGON...
ALTAMONT                              9.0                    
ASHLAND                               8.0                    
MEDFORD                               6.0                    
KLAMATH FALLS                         4.5                    

...WASHINGTON...
QUILLAYUTE                           11.0                    
MOUNT SAINT HELEN                     9.0                    
ILWACO                                6.0                    
NASELLE                               6.0                    

...Selected preliminary Storm Total Rainfall in inches from 600 AM
PST Fri Jan 31 through 600 AM PST Tue Feb 04...

...CALIFORNIA...
PALMETTO 0.9 SSW                    24.40                    
BRUSH CREEK                         22.09                    
SWEETBRIAR 2 E                      21.32                    
MIDDLE PEAK                         17.45                    
BRANDY CREEK                        15.04                    
REDDING 7.9 NNE                     12.96                    
POTTER VALLEY 8.4 ENE               12.50                    
BEN LOMOND RAWS                      8.01                    
SANTA ROSA 3.1 W                     7.19                    
SAN FRANCISCO                        4.01                    

...Selected preliminary Peak Wind gusts in miles per hour earlier
in the event...

...CALIFORNIA...
MAMMOTH MOUNTAIN 1.7 S                139                    

...NEVADA...
HAWTHORNE 6.1 NW                      110                    


Lingering areas of rain and mountain snowfall should come to an
end later today across southern California and the northern
Rockies with additional precipitation totals remaining light.
Coastal rain and higher elevation snow showers will continue from
northern California into the Pacific Northwest through Thursday
morning ahead of a weakening upper level low located offshore of
the Pacific Northwest. Additional rainfall up to about one inch
and snowfall of 1-2 feet will be possible through Thursday morning
for western portions of northern California into Oregon. While
another storm system is expected to bring another round of rain
and snow to California on Thursday, this next storm will not last
as long, or have the same precipitation magnitude, as the
mutli-day atmospheric river event that is ending today. 

This will be the last Storm Summary issued by the Weather
Prediction Center for this event. Please refer to your local
National Weather service office for additional information.

Otto