Storm Summary Number 3 for West Coast Atmospheric River
NWS Weather Prediction Center College Park MD
700 PM PST Sun Jan 15 2023

...Heavy rain and mountain snow resume over California and the
southern Great Basin with yet another atmospheric river...

Winter Storm Warnings are in effect over the Sierra Nevada,
Transverse Range, and southern Great Basin.

Flood Warnings are in effect for select portions of the Central
Valley in California.

Flood Watches are in effect for portions of the Bay Area in
California.

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

At 600 PM PST...Light to moderate precipitation continues over
portions of Arizona associated with the remants of an atmospheric
river earlier this weekend. Meanwhile, over the last several
hours, National Weather Service RADAR detected a broad area of
moderate to heavy precipitation across much of central and
southern California associated with the next atmospheric river
that will persist through Monday.

...Selected preliminary Storm Total Snowfall in inches from 700 AM
PST Fri Jan 13 through 600 PM PST Sun Jan 15...

...ARIZONA...
NWS FLAGSTAFF                        23.5                    
KACHINA VILLAGE                      20.0                    
WILLIAMS 2 SE                        19.0                    
BRIGHT ANGEL POINT 1 NNW             15.0                    

...CALIFORNIA...
TUOLUMNE 6 WSW                       41.0                    
MAMMOTH MOUNTAIN SKI BA              36.0                    
HETCH HETCHY 10 NE                   34.0                    
DONNER PEAK 1 W                      21.0                    
PALISADES TAHOE SKI BAS              21.0                    

...NEVADA...
SODA SPRINGS                         26.0                    
MT CHARLESTON 1 ESE                  13.0                    

...Selected preliminary Storm Total Rainfall in inches from 700 AM
PST Fri Jan 13 through 600 PM PST Sun Jan 15...

...CALIFORNIA...
HONEYDEW 3.2 SSE                     9.50                    
ANDERSON PEAK                        8.67                    
MINING RIDGE                         8.55                    
LAKE RANCH NORTH                     7.28                    
THREE PEAKS                          6.85                    
BOULDER CREEK 4.1 N                  6.43                    
BLACK CONE                           6.15                    
LAS CUMBRES                          6.15                    
CAZADERO 6.6 WNW                     5.48                    
BLACK BUTTE SADDLE                   4.78                    
WOODACRE 0.6 SW                      4.34                    
BASS LAKE                            2.36                    

...OREGON...
BROOKINGS 4.2 ENE                    6.24                    
GOLD BEACH 11.1 NNE                  5.30                    

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

...CALIFORNIA...
HIGH GLADE LOOKOUT                     73                    
SCOTIA 4.3 SW                          70                    


With the next atmospheric river, expect additional rounds of heavy
rainfall and mountain snow late into Monday, particularly over
central and southern California. Given the saturated conditions
still in place across much of California, even light to moderate
precipitation impacts can result in flooding, mudslides, and other
associated damages. Meanwhile in the southern Sierra Nevadas,
additional heavy mountain snow of 1-2 feet is expected. Strong
winds may accompany the heavy snowfall, which may lead to blowing
snow and whiteout conditions.

The next Storm Summary will be issued by the Weather Prediction
Center at 700 AM PST. Please refer to your local National Weather
Service office for additional information on this event.

Asherman/Genz