THE HYDROMETEOROLOGICAL PREDICTION CENTER

COLLEGE PARK, MD


STORM SUMMARY MESSAGE



STORM SUMMARY NUMBER 05 FOR WESTERN U.S. HEAVY RAIN AND SNOW
NWS HYDROMETEOROLOGICAL PREDICTION CENTER COLLEGE PARK MD
100 PM PST FRI NOV 30 2012

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

FLOOD AND FLASH FLOOD WATCHES AND WARNINGS AND ADVISORIES ARE IN
EFFECT FOR CALIFORNIA... AND SMALL PARTS OF COASTAL OREGON AND THE
PUGET SOUND.

HIGH WIND WATCHES...WARNINGS...AND WIND ADVISORIES ARE IN EFFECT
FOR PORTIONS OF CENTRAL CALIFORNIA... SOUTHERN OREGON... NEVADA...
AND WESTERN MONTANA.

WINTER STORM WATCHES AND WARNINGS ARE IN EFFECT FOR HIGHER
ELEVATIONS OF IDAHO...MONTANA...AND WYOMING.  A WINTER WEATHER
ADVISORY IS IN EFFECT FOR THE SIERRA IN CALIFORNIA AS WELL AS
EXTREME EASTERN IDAHO.

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

AT 1200 PM PST...AN EXPANSIVE AREA OF LOW PRESSURE WITH A CENTRAL
PRESSURE OF 970 MB...28.64 INCHES...CENTERED OVER THE NORTHEAST
PACIFIC CONTINUES TO FEED MOISTURE INTO THE WESTERN U.S. NATIONAL
WEATHER SERVICE DOPPLER RADARS AND SURFACE OBSERVATIONS INDICATED
SCATTERED TO WIDESPREAD MODERATE TO HEAVY RAIN ACROSS CENTRAL AND
NORTHERN CALIFORNIA...NORTHERN NEVADA... AND WESTERN WASHINGTON.
SOME LIGHTER AND MORE SCATTERED PRECIPITATION WAS ALSO FALLING IN
PARTS OF OREGON... SOUTHERN IDAHO... AS WELL AS WESTERN AND
CENTRAL MONTANA. THE MAJORITY OF THE PRECIPITATION IS FALLING IN
THE FORM OF RAIN. HOWEVER...IN THE HIGHER ELEVATIONS OF THE
CASCADES AND SIERRAS... THE PRECIPITATION WAS FALLING AS SNOW.    
  

...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 400 PM PST TUE NOV
27 THROUGH 1200 PM PST FRI NOV 30...

...CALIFORNIA...
PETROLIA 7.4 SE                      10.09                    
CAZADERO 6.9 WNW                      9.11                    
ST. HELENA 5 ESE                      8.82                    
BRIDGEVILLE 5.2 ENE                   8.36                    
CRESCENT CITY 4.2 NE                  7.25                    
VENADO                                7.12                    
MC CLOUD 9 SSE                        7.07                    
PINECREST                             6.86                    
WHISPERING PINES                      6.32                    
ORICK 5.9 SSW                         5.92                    
TRINITY CENTER 12 SSE                 5.16                    
GASQUET                               5.00                    
COFFEE RIDGE                          4.96                    
ELK VALLEY 5 S                        4.92                    

...OREGON...
OBRIEN 2 SSW                          5.31                    
MERLIN 6 SW                           4.50                    
APPLEGATE 5 NNW                       3.43                    
GRANTS PASS 4 N                       3.30                    
RIDDLE                                3.30                    
WILLIAMS 1 NW                         3.30                    
SELMA 5 NNE                           3.23                    
CAVE JUNCTION 2 N                     3.14                    
MURPHY 1 SSE                          2.62                    
MEDFORD-JACKSON CO. ARPT              2.48                    
CRATER LAKE NATL PARK                 2.38                    
SEXTON SUMMIT                         2.34                    
EUGENE 2.2 SW                         2.20                    

...WASHINGTON...
COPALIS CROSSING 2.1 NNW              2.29                    
BRINNON 1.7 WSW                       1.93                    
QUILLAYUTE                            1.42                    
ABERDEEN 0.7 WSW                      1.32                    

...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 400 PM PST TUE NOV
27 THROUGH 1200 PM 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                    

...WASHINGTON...
WINTHROP 6.8 NNW                      5.0                    
PLAIN 0.8 NW                          4.0                    

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

...CALIFORNIA...
INDEPENDENCE 5 NW                     79                    
SANDBERG                              75                    
REDDING 2 S                           71                    
HIGH GLADE LOOKOUT                    67                    
MT. DIABLO RAWS                       67                    
BLUE CANYON                           66                    
DUNCAN PEAK RAWS                      64                    
SADDLEBACK RAWS                       63                    
REDDING                               61                    
CRESCENT MILLS 3 SW                   60                    
JANESVILLE                            60                    
OXNARD AIRPORT                        57                    
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                    

...OREGON...
SPRAGUE RIVER 10 SSE                  60                    


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 12
TO 15 INCHES...WITH LOCALLY HIGHER AMOUNTS POSSIBLE. IN THE HIGHER
ELEVATIONS OF THE WESTERN U.S...SNOWFALL TOTALS OF 1 TO 3 FEET
WILL BE POSSIBLE...WITH LOCALLY HIGHER AMOUNTS. ADDITIONALLY...
STRONG 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 PM PST. PLEASE REFER TO YOUR LOCAL
NATIONAL WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS
EVENT.

MONARSKI




Last Updated: 401 PM EST FRI NOV 30 2012