THE HYDROMETEOROLOGICAL PREDICTION CENTER

COLLEGE PARK, MD


STORM SUMMARY MESSAGE



STORM SUMMARY NUMBER 03 FOR WESTERN U.S. HEAVY RAIN AND SNOW
NWS HYDROMETEOROLOGICAL PREDICTION CENTER COLLEGE PARK MD
100 AM PST FRI NOV 30 2012

...MULTI-DAY RAIN...WIND...AND SNOW EVENT CONTINUES TO HAMMER THE
NORTHWEST...

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

WINTER STORM WARNINGS ARE IN EFFECT FOR PARTS OF THE SIERRA NEVADA
IN CALIFORNIA.

HIGH WIND WARNINGS AND WIND ADVISORIES ARE IN EFFECT FOR PARTS OF
SOUTHERN OREGON...CENTRAL AND NORTHERN CALIFORNIA...AND PARTS OF
WESTERN NEVADA.

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

AN EXTENSIVE AREA OF LOW PRESSURE CENTERED OVER THE NORTHEAST
PACIFIC CONTINUES TO FEED MOISTURE INTO THE WESTERN U.S.  THE
ASSOCIATED SURFACE FRONTS ARE EDGING CLOSER TO THE WEST COAST.  AT
100 AM PST...NATIONAL WEATHER SERVICE DOPPLER RADARS AND SURFACE
OBSERVATIONS INDICATED WIDESPREAD MODERATE TO HEAVY RAIN EXTENDING
ACROSS THE NORTHERN HALF OF CALIFORNIA INTO SOUTHWESTERN OREGON. 
MODERATE TO HEAVY RAINFALL WAS ALSO OBSERVED FARTHER TO THE NORTH
ACROSS PORTIONS OF NORTHERN OREGON AND WASHINGTON.  THE MAJORITY
OF THE PRECIPITATION IS FALLING IN THE FORM OF RAIN.  HOWEVER...IN
THE HIGHER ELEVATIONS OF THE CASCADES AND SIERRA NEVADA...THE
PRECIPITATION WAS FALLING AS SNOW.

...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 400 PM PST TUE NOV
27 THROUGH 1000 PM PST THU NOV 29...

...CALIFORNIA...
PINECREST                             6.86                    
CRESCENT CITY/MC NAMARA FIELD         5.02                    
PETROLIA 7.4 SE                       4.57                    
FORTUNA 1.3 S                         3.52                    
MOUNT SHASTA                          3.38                    
UKIAH MUNI ARPT                       3.22                    
HONDEYDEW 1 SW                        2.72                    
WEED 3 SSW                            2.62                    
BRIDGEVILLE 5.2 ENE                   2.55                    
SIMS 1 SSW                            2.46                    
SANTA ROSA/SONOMA CO. ARPT            2.33                    
BUCKS LAKE                            2.31                    
MCCLOUD 3 S                           2.30                    
CAZADERO 6.9 WNW                      2.29                    
TRINIDAD 1.5 NNW                      2.24                    

...OREGON...
OBRIEN 2 SSW                          5.31                    
MERLIN 6 SW                           4.50                    
CAVE JUNCTION 2 N                     3.14                   
SELMA 3 ESE                           2.90                    
MURPHY 1 SSE                          2.62                    
EUGENE 2.2 SW                         2.20                    
SEXTON SUMMIT                         2.15                    
MEDFORD-JACKSON CO. ARPT              2.05                    
GRANTS PASS 10 W                      1.97                    
BROOKINGS 4.2 ENE                     1.93                    
GOLD BEACH 4.8 NE                     1.93                    
APPLEGATE 3 NE                        1.74                    
EAGLE POINT 0.1 S                     1.62                    
AGNESS 6.4 NE                         1.57                    
SHADY COVE                            1.50                    

...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 400 PM PST TUE NOV
27 THROUGH 000 AM PST FRI NOV 30...

...CALIFORNIA...
CHARLOTTE LAKE                        8.0                    
CHAGOOPA PLATEAU                      7.0                    
KAISER POINT                          7.0                    
VOLCANIC KNOB                         6.0                    
FAREWELL GAP                          5.0                    
SODA SPRINGS 1.5 SSW                  4.0                    

...OREGON...
ASHLAND 8 S                          10.0                    

...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                    
CRESCENT MILLS 3 SW                   60                    
JANESVILLE                            60                    
MONTAGUE/SISKIYOU CO. ARPT            53                    
HALF MOON BAY 1 SSW                   42                    

...NEVADA...
MOUNT ROSE SKI AREA 4 NE              80                    
CARSON CITY 6 SW                      72                    
RENO 2 NE                             60                    
RENO/CANNON INTL ARPT                 57                    
GARDNERVILLE 5 E                      54                    


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 STORM TOTAL RAINFALL OF 10
TO 12 INCHES IN THIS EVENT...WITH LOCALLY HIGHER AMOUNTS POSSIBLE.
 IN THE HIGHER ELEVATIONS OF THE CASCADES AND SIERRA MOUNTAINS...
SNOW TOTALS IN EXCESS OF A FOOT ARE LIKELY.  ADDITIONALLY... GUSTY
WINDS ARE EXPECTED ACROSS THE ENTIRE REGION GIVEN THE STRONG
PRESSURE GRADIENT BETWEEN THE HIGH PRESSURE OVER THE ROCKIES AND
THIS LOW PRESSURE SYSTEM.

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

KONG




Last Updated: 357 AM EST FRI NOV 30 2012