STORM SUMMARY NUMBER 1 FOR WESTERN U.S. HEAVY RAIN AND SNOW
NWS HYDROMETEOROLOGICAL PREDICTION CENTER COLLEGE PARK MD
100 PM PST THU NOV 29 2012

...MULTI-DAY HEAVY RAIN AND SNOW EVENT HAS BEGUN TO SPIN UP ACROSS
THE NORTHWEST...

FLASH FLOOD... FLOOD... AND COASTAL FLOOD WARNINGS... WATCHES...
AND ADVISORIES ARE IN EFFECT FOR PORTIONS OF CENTRAL WASHINGTON...
SOUTHWESTERN OREGON... AND COASTAL NORTHWESTERN CALIFORNIA.

THERE ARE WINTER STORM WARNINGS IN EFFECT FOR PARTS OF THE SIERRAS
IN CALIFORNIA.

THERE ARE WIND WARNINGS AND ADVISORIES IN EFFECT FOR PARTS OF
SOUTHERN OREGON... COASTAL AND NORTHERN CALIFORNIA... AS WELL AS
PARTS OF THE SIERRAS.

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

AT 1200 PM PST...AN UPPER-LEVEL LOW LOCATED OVER THE NORTHEAST
PACIFIC HAS INDUCED A SURFACE LOW AND ASSOCIATED FRONTAL STRUCTURE
ALONG THE COAST OF THE WESTERN UNITED STATES.  NATIONAL WEATHER
SERVICE DOPPLER RADARS AND SURFACE OBSERVATIONS INDICATED SOME
MODERATE TO HEAVY RAIN FALLING IN NORTHERN CALIFORNIA AND
SOUTHWESTERN OREGON.  SOME ADDITIONAL WIDESPREAD LIGHTER
PRECIPITATION IS ALSO FALLING IN PARTS OF CENTRAL CALIFORNIA...
NORTHERN OREGON... AND MUCH OF WASHINGTON.  THE MAJORITY OF THE
PRECIPITATION IS FALLING IN THE FORM OF RAIN. HOWEVER... IN THE
HIGHER ELEVATIONS OF THE CASCADE AND SIERRA MOUNTAINS THE
PRECIPITATION WAS FALLING AS SNOW.

...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 400 PM PST TUE NOV
27 THROUGH 1200 PM PST THU NOV 29...

...CALIFORNIA...
PINECREST                             6.86                    
PETROLIA 7.4 SE                       3.46                    
HONDEYDEW 1 SW                        2.72                    
SIMS 1 SSW                            2.46                    
BRIDGEVILLE 5.2 ENE                   2.32                    
BUCKS LAKE                            2.31                    
CRESCENT CITY/MC NAMARA FIELD         2.26                    
YORKVILLE                             2.20                    
WEED 4 SW                             2.19                    
VENADO                                2.08                    
LAKE SPAULDING                        2.04                    

...OREGON...
GRANTS PASS 10 W                      1.97                    
MERLIN 6 SW                           1.90                    
BROOKINGS 4.2 ENE                     1.71                    

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

...CALIFORNIA...
REDDING 2 S                           71                    
HIGH GLADE LOOKOUT                    67                    
DUNCAN PEAK RAWS                      64                    
SADDLEBACK RAWS                       63                    
MONTAGUE/SISKIYOU CO. ARPT            53                    

...NEVADA...
RENO/CANNON INTL ARPT                 57                    


THE MODERATE TO HEAVY PRECIPITATION IS EXPECTED TO CONTINUE FOR
MUCH OF THE PACIFIC NORTHWEST AND NORTHERN CALIFORNIA THROUGH AT
LEAST SUNDAY.  SOME AREAS COULD RECEIVE UPWARDS OF 10 TO 12 INCHES
OF RAIN WITH THIS EVENT. GIVEN THE STRONG PRESSURE GRADIENT
BETWEEN THE HIGH PRESSURE OVER THE ROCKIES AND THIS SYSTEM... SOME
GUSTY WINDS ARE ALSO EXPECTED ACROSS THE ENTIRE REGION. 

THE NEXT STORM SUMMARY WILL BE ISSUED BY THE HYDROMETEOROLOGICAL
PREDICTION CENTER AT 700 PM PST. PLEASE REFER TO YOUR LOCAL
NATIONAL WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS
EVENT.

MONARSKI