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ACUS45 KWBC 150236

SCCNS5



Storm Summary Number 1 for West Coast Atmospheric River

NWS Weather Prediction Center College Park MD

700 PM PST Sat Jan 14 2023



...Heavy rain and mountain snow continue to batter California and

southern Oregon with another atmospheric river...



Winter Storm Warnings are in effect over the Sierra Nevada and

Transverse Ranges.



Flood Watches extend over much of coastal California and further

inland through the Sacramento Valley. A separate area of Flood

Watches are in effect over Southern California.



For a detailed graphical depiction of the latest watches, warnings

and advisories, please see www.weather.gov



At 600 PM PST...National Weather Service Doppler radar detected

scattered showers and thunderstorms over far southern Oregon,

through southern California, and further east over southern Nevada

and Arizona. This activity is tied to yet another atmospheric

river which arrived over California yesterday, which will continue

through tomorrow.



...Selected preliminary Storm Total Snowfall in inches from 700 AM

PST Fri Jan 13 through 600 PM PST Sat Jan 14...



...CALIFORNIA...

PALISADES TAHOE SKI BAS              14.0                    

MAMMOTH MOUNTAIN SKI BA               9.0                    



...Selected preliminary Storm Total Rainfall in inches from 700 AM

PST Fri Jan 13 through 600 PM PST Sat Jan 14...



...CALIFORNIA...

HONEYDEW 3.2 SSE                     7.63                    

THREE PEAKS                          6.54                    

ANDERSON PEAK                        6.22                    

BOULDER CREEK 3 NW                   5.28                    

CAZADERO 6.6 WNW                     4.46                    

WOODACRE 0.6 SW                      3.55                    



...OREGON...

BROOKINGS 2.8 SE                     4.09                    



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

in the event...



...CALIFORNIA...

HIGH GLADE LOOKOUT                     73                    

SCOTIA 4.3 SW                          70                    





Although rain and mountain snow are expected to wind down by

Sunday, another atmospheric river will bring additional rounds of

heavy rainfall and mountain snow on Monday. With overly saturated

conditions still in place, further limited flooding impacts are

expected across California into Monday. Meanwhile in the

mountains, heavy mountain snow and strong winds will lead to

blowing snow and whiteout conditions at times, creating dangerous

to near impossible travel above 4000 ft in the mountains and

passes of central and southern California.



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

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