STORM SUMMARY NUMBER 3 FOR SOUTHERN CALIFORNIA HEAVY RAINFALL EVENT
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
700 PM PST FRI FEB 17 2017

...HEAVY RAIN WITH GUSTY WINDS MOVING INTO LOS ANGELES AND SAN
DIEGO METROPOLITAN AREAS... 

FLASH FLOOD WARNINGS ARE CURRENTLY IN EFFECT FOR PORTIONS OF
SOUTHERN CALIFORNIA.

FLASH FLOOD WATCHES...AND FLOOD WARNINGS AND ADVISORIES EXTEND
FROM MUCH OF NORTHERN CALIFORNIA...ALONG THE LOWER ELEVATIONS OF
THE SIERRA NEVADA...ACROSS SOUTHEASTERN CALIFORNIA AND INTO
CENTRAL ARIZONA.

WINTER STORM WARNINGS...WATCHES...AND WINTER WEATHER ADVISORIES
ARE IN EFFECT ACROSS THE SIERRA NEVADA RANGE OF
CALIFORNIA...TRANSVERSE RANGES IN SOUTHERN CALIFORNIA...AND OVER
THE HIGH TERRAIN OF CENTRAL AND SOUTHERN NEVADA AS WELL AS CENTRAL
ARIZONA.

HIGH WIND WARNINGS...WATCHES...AND WIND ADVISORIES REMAIN IN
EFFECT FROM THE SACRAMENTO VALLEY SOUTHWARD INTO MUCH OF SOUTHERN
CALIFORNIA AND SOUTHERN ARIZONA.

FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV

A DEEP LOW PRESSURE SYSTEM WITH AN ESTIMATED CENTRAL PRESSURE OF
985 MB...29.09 INCHES WAS DRIFTING EASTWARD TOWARD THE CENTRAL
CALIFORNIA COAST AS IT CONTINUES TO BRING ANOMALOUS AMOUNTS OF
MOISTURE INTO CALIFORNIA. AT 6 PM PST...IT WAS CENTERED ABOUT 70
MILES WEST-SOUTHWEST OF SAN FRANCISCO...CALIFORNIA.  NATIONAL
WEATHER SERVICE DOPPLER RADARS AND SURFACE OBSERVATIONS INDICATED
AN EXPANSIVE SHIELD OF MODERATE RAIN AHEAD OF THE LOW PRESSURE
SYSTEM CONTINUED TO MOVE ACROSS MUCH OF NORTHERN AND CENTRAL
CALIFORNIA.  MEANWHILE...AN ORGANIZED AREA OF HEAVY RAIN WAS
MOVING EASTWARD INTO COASTAL SOUTHERN CALIFORNIA WHERE FLASH
FLOODING...STRONG WIND GUSTS...DEBRIS FLOWS AND POWER OUTAGES WERE
REPORTED IN THE PAST FEW HOURS.  AT THE HIGHER
ELEVATIONS...PRECIPITATION WAS IN THE FORM OF MODERATE TO HEAVY
SNOW ALONG THE SIERRA NEVADA AS WELL AS THE TRANSVERSE RANGES.

...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 100 AM PST FRI FEB
17 THROUGH 600 PM PST FRI FEB 17...

...CALIFORNIA...
SAN MARCOS PASS                       8.62                    
EL DESEO RANCH                        8.02                    
GIBRALTA DAM                          7.71                    
SULPHUR MOUNTAIN CREEK                6.51                    
ALISAL RESERVOIR                      5.05                    
CELITE                                4.93                    
LAKE CACHUMA                          4.55                    
GOLETA WATER DISTRICT                 4.03                    
SANTA BARBARA CITY COLLEGE            3.73                    
SANTA BARBARA MUNI ARPT               3.63                    
SANTA BARBARA FLOOD CONTROL OFFICE    3.42                    
MINING RIDGE                          3.39                    
THREE PEAKS                           3.36                    
CASITAS                               3.06                    
SUMMERLAND                            3.01                    
TOPA TOPA                             2.96                    
SANDBERG                              2.89                    
ROCKY BUTTE                           2.76                    
OXNARD AIRPORT                        2.68                    
DOUGH FLAT                            2.54                    
LOS OSOS NORTH LANDFILL               2.29                    
SANTA MARIA PUBLIC APT                2.14                    
SANTA BARBARA 6.6 NW                  1.84                    
VENTURA CITY HALL                     1.62                    
CAL POLY SAN LUIS OBISPO              1.49                    
BIG SUR 3.2 SE                        1.40                    
KING CITY 13.2 S                      1.24                    
LOS OSOS 0.5 N                        1.16                    
LOS ANGELES-USC                       1.10                    

...SELECTED PEAK WIND GUSTS IN MILES PER HOUR EARLIER IN THE
EVENT...

...CALIFORNIA...
CARMEL VALLEY VILLAGE 10 SW           86                    
MILL CREEK                            81                    
BIG BEAR CITY 13 ESE                  78                    
CASTROVILLE 2 NW                      75                    
GRASS MOUNTAIN                        75                    
SALINAS AIRPORT                       71                    
SANDBERG                              70                    
CHILAO                                68                    
PT. PIEDRAS BLANCAS                   65                    
SANTA ROSA ISLAND                     65                    
BONEY MOUNTAIN                        63                    
LAKE PALMDALE                         63                    
TEPUSQUET                             63                    
TOPANGA                               62                    
HASTINGS                              61                    
HEARST CASTLE 40 W BUOY               60                    
SALINAS MUNI ARPT                     57                    
SAN JOSE/REID-HILLVIEW                50                    
SAN JOSE INTL ARPT                    47                    


THE DEEP LOW PRESSURE SYSTEM IS EXPECTED TO DRIFT EASTWARD INTO
CALIFORNIA TONIGHT AND GRADUALLY WEAKENS ON SATURDAY.  HEAVY RAIN
WILL CONTINUE TO DRIFT FARTHER INLAND OVER SOUTHERN CALIFORNIA
TONIGHT WHERE EXCESSIVE RAINFALL OF 3 TO 6 INCHES IS POSSIBLE
PARTICULARLY ALONG COASTAL SOUTHERN CALIFORNIA AND LOWER
ELEVATIONS OF THE TRANSVERSE MOUNTAIN RANGES. OVER THE TRANSVERSE
RANGES OF SOUTHERN CALIFORNIA...4 TO 8 INCHES OF SNOW IS POSSIBLE.
 OVER SOUTHERN SIERRA NEVADA...AN ADDITIONAL FOOT TO 1.5 FEET OF
SNOW IS POSSIBLE THROUGH SATURDAY.  THE STORM IS EXPECTED TO
WEAKEN AS IT MOVES FARTHER INLAND DURING THE WEEKEND. NONETHELESS
RAINFALL OF 1 TO 3 INCHES ACROSS THE LOWER COLORADO RIVER BASIN
INTO THE MOGOLLON RIM OF ARIZONA WILL CONTINUE TO POSE EXCESSIVE
RAINFALL THREAT.

THE NEXT STORM SUMMARY WILL BE ISSUED BY THE WEATHER PREDICTION
CENTER AT 100 AM PST. PLEASE REFER TO YOUR LOCAL NATIONAL WEATHER
SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS EVENT.

KONG