STORM SUMMARY NUMBER 1 FOR HEAVY CALIFORNIA RAINFALL
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
500 PM EDT THU MAR 22 2018

...HEAVY RAINS AND SNOWS FALL ACROSS CALIFORNIA....

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

AT 400 PM EDT...A FRONTAL ZONE AND PRECEDING MOISTURE PLUME (ALSO
KNOWN AS AN ATMOSPHERIC RIVER) ARE SLOWLY MOVING EASTWARD THROUGH
CALIFORNIA.  RADAR INDICATES A BROAD AREA OF PRECIPITATION ACROSS
CENTRAL AND SOUTHERN PORTIONS OF THE STATE.  UNSTABLE CONDITIONS
HAVE LED TO THE DEVELOPMENT OF THUNDERSTORMS WITHIN THE RAIN AREA,
WHICH HAVE SUPPORTED HOURLY RAIN TOTALS OF 0.5-1 INCH HAVE BEEN
MEASURED RECENTLY ACROSS CENTRAL CALIFORNIA NEAR AND AHEAD OF THE
COLD FRONT AND 0.3-0.4 INCH IN THE MORE EASTWARD PLUME ACROSS THE
TRANSVERSE RANGES OF SOUTHERN CALIFORNIA.

...SELECTED PRELIMINARY STORM TOTAL RAINFALL IN INCHES FROM 700 AM
EDT TUE MAR 20 THROUGH 400 PM EDT WED MAR 22...

...CALIFORNIA...
NATURE POINT                         10.24                    
ROCKY BUTTE                           9.54 RRMLOX             
UPPER TORO CREEK ROAD                 7.77 RRMLOX             
SHAVER LAKE                           7.45                    
DINKEY CREEK                          7.35                    
WAWONA MARIPOSA GROVE RD              7.23                    
DEVILS POSTPILE                       6.99                    
BEARTRAP MEADOW                       6.52                    
WISHON DAM                            6.48                    
TAMARACK SUMMIT                       6.44                    
THREE PEAKS                           6.06                    
KAISER POINT SNOTEL                   5.76                    
NORTH FORK 3 ENE                      5.68                    
ROGERS CAMP                           5.68                    
BEVERLY HILLS                         1.01                    

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

...CALIFORNIA...
SANDBERG                              61                    
CHILAO                                56                    
LA GRANADA MOUNTAIN                   56                    
GRASS MOUNTAIN                        54                    
MILL CREEK 5                          52                    
SANTA ROSA ISLAND                     52                    
VANDENBERG                            51                    
TEPUSQUET                             49                    


AS THE COLD FRONT MOVES EASTWARD AND INSTABILITY AND THE STRENGTH
OF THE ASSOCIATED ATMOSPHERIC RIVER WANE, HEAVY PRECIPITATION
SHOULD SLOWLY SUBSIDE OVERNIGHT.  UNTIL THEN, AN ADDITIONAL TWO
INCHES OF RAINFALL WITH LOCALLY HIGHER AMOUNTS IS EXPECTED.  THIS
AMOUNT OF RAIN COULD BE PROBLEMATIC NEAR RECENT BURN SCARS, SUCH
AS THOSE CREATED BY THE THOMAS, WHITTIER, AND ALAMO FIRES IN
SOUTHERN CALIFORNIA.

THE NEXT STORM SUMMARY WILL BE ISSUED BY THE WEATHER PREDICTION
CENTER AT 1100 PM EDT. PLEASE REFER TO YOUR LOCAL NATIONAL WEATHER
SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS EVENT.

ROTH