The Weather Prediction Center

College Park, MD

Storm Summary Message

Storm Summary Number 03 for California Atmospheric River
NWS Weather Prediction Center College Park MD
700 PM PST Mon Feb 05 2024

...Strong atmospheric river producing life threatening heavy rain,
flash flooding, mountain snow, and high winds across California...

Several Flash Flood Warnings are in effect across portions of
Southern California.

Flood Watches are in effect across much of Central and Southern

Winter Storm Warnings are in effect atop the California Cascades
and Sierra Nevada.

High Wind Warnings are in effect across much of Central and
Southern California.

For a detailed graphical depiction of the latest watches, warnings
and advisories, please see

At 600 PM PST...Radar and surface observations observed a cold
front traversing through interior portions of Southern California.
Heavy rainfall, facilitated by high water vapor content and
enhanced lifting by a surface trough, is streaming southwest to
northeast into Southern California along and behind the cold
front. Gusty winds were also ongoing across much of California.

...Selected preliminary Storm Total Snowfall in inches from 700 AM
PST Sun Feb 04 through 600 PM PST Mon Feb 05...

MAMMOTH MOUNTAIN                     33.0                    
JUNE MOUNTAIN                        31.0                    
KIRKWOOD MEADOWS                     25.0                    
TRUCKEE                              21.0                    
TWIN BRIDGES                         14.0                    
PALISADES TAHOE SKI                  13.0                    
HOBERGS                              10.0                    

...Selected preliminary Storm Total Rainfall in inches from 700 AM
PST Sun Feb 04 through 600 PM PST Mon Feb 05...

BELL AIR HOTEL                      11.64                    
SEPULVEDA CANYON                    11.64                    
STUNT RANCH                         11.07                    
WOODLAND HILLS                      10.97                    
COGSWELL DAM                        10.63                    
EL DESEO RANCH                       8.62                    
MATILIJA CANYON                      8.26                    
MIDDLE FORK LYTLE CREEK              8.17                    
BEVERLY HILLS                        7.95                    
LOS ANGELES/USC DOWNTOWN             7.01                    
CAMP HI HILL                         6.81                    
SANTA MONICA                         6.63                    
PINYON PEAK                          6.46                    
PASADENA                             6.07                    
OLD MAN MOUNTAIN                     5.67                    
RANCHO SAN JULIAN                    4.53                    
SANTA BARBARA FCD                    3.81                    
LAKE KITTIRIDGE                      3.16                    

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

LAGUNITAS FOREST                      102                    
PABLO POINT                           102                    
SANTA CLARA                            98                    
INVERNESS                              89                    
FALCON ROAD                            80                    
SAN FRANCISCO                          77                    
YOSEMITE PILOT PEAK                    74                    
PEBBLE BEACH                           68                    
SPRING VALLEY                          65                    
OAKLAND INTERNATIONAL                  60                    
SAN FRANCISCO INTERNATIONAL            58                    
SAGUS                                  50                    
SAN LUIS                               50                    
CATALINA AIRPORT                       49                    
MORMON ROCK                            46                    
OAKLAND NORTH                          46                    
SACRAMENTO AIRPORT                     46                    
MALIBU HILLS                           40                    
SANRA YNEZ                             37                    
WATSONVILLE                            35                    
PEPPERDINE                             33                    
SANTA BARBARA                          23                    

Heavy to moderate persistent rain will continue the rest of
tonight through early Tuesday for much of Southern California,
with additional rainfall amounts of 1-3". Lighter rain showers may
continue through Wednesday, however. The threat for locally
catastrophic flash and urban flooding impacts will persists across
Los Angeles. In the mountains, heavy wet snow will continue across
the Sierra Nevada and near Mt. Shasta through tonight. 2-3"/hour
snowfall rates combined with wind gusts will lead to whiteout
conditions and near impossible travel above 5000 feet.

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.


Last Updated: 943 PM EST MON FEB 05 2024