STORM SUMMARY NUMBER 04 FOR PACIFIC NORTHWEST HEAVY RAIN AND SNOW
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
100 AM PST TUE NOV 20 2012

...MULTI-DAY HEAVY RAIN AND SNOW EVENT CONTINUES FOR THE PACIFIC
NORTHWEST AND NORTHERN CALIFORNIA...     

BLIZZARD WARNINGS ARE IN EFFECT FOR THE HIGHER ELEVATIONS OF
NORTHWESTERN MONTANA.

WINTER STORM WARNINGS ARE IN EFFECT FOR THE HIGH ELEVATIONS OF
CENTRAL IDAHO.

FLOOD WATCHES AND WARNINGS ARE IN EFFECT FOR MUCH OF
WASHINGTON...PORTIONS WESTERN OREGON...AS WELL AS NORTHERN IDAHO.

HIGH WIND WARNINGS AND WIND ADVISORIES ARE IN EFFECT FOR PORTIONS
OF SOUTHERN OREGON...NORTHERN CALIFORNIA...NORTHWESTERN
NEVADA...AS WELL AS PORTIONS OF IDAHO AND MONTANA.

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

AT 100 AM PST...A STRONG CLOSED UPPER LEVEL LOW WAS LOCATED OVER
THE NORTHEAST PACIFIC. A SURFACE LOW WITH A CENTRAL PRESSURE OF
999 MB...29.50 INCHES...WAS LOCATED OVER CENTRAL BRITISH COLUMBIA.
A COLD FRONT EXTENDED SOUTH FROM THE SURFACE LOW INTO WASHINGTON
AND COASTAL OREGON AND OUT INTO THE PACIFIC OCEAN. NATIONAL
WEATHER SERVICE RADAR AND SURFACE OBSERVATIONS INDICATED
WIDESPREAD PRECIPITATION ACROSS CENTRAL AND EASTERN WASHINGTON AS
WELL AS WESTERN OREGON AND EXTREME NORTHERN CALIFORNIA. MORE
SCATTERED PRECIPITATION WAS OCCURRING ALONG THE IMMEDIATE COAST OF
WASHINGTON AND OREGON AS WELL AS ACROSS PORTIONS OF IDAHO AND
MONTANA. PRECIPITATION WAS FALLING PRIMARILY IN THE FORM OF LIGHT
TO MODERATE RAIN...WITH SNOW OCCURRING AT HIGHER ELEVATIONS.      
                  

...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 400 AM PST SAT NOV
17 THROUGH 100 AM PST TUE NOV 20...

...CALIFORNIA...
CALLENGE-BROWNSVILLE 1.3 WSW          4.62                    
GRASS VALLEY                          4.32                    
CAZADERO 5.6 W                        3.99                    
SHINGLETON 2.8 NNW                    3.79                    
POLLOCK PINES 0.5 NW                  3.55                    
REDDING 3.8 S                         3.49                    
SANTA CRUZ 6.3 NNE                    3.49                    
NEVADA CITY 3.4 NNW                   3.32                    
ANDERSON 2.6 NE                       3.30                    
BLUE CANYON                           3.26                    
LOS GATON 5.2 SSW                     3.21                    
REDDING MUNI ARPT                     1.87                    

...OREGON...
LEES CAMP                             7.90                    
NEHALEM                               7.75                    
CEDAR CREEK RAWS                      7.03                    
ASTORIA                               6.29                    
SADDLE MOUNTAIN                       5.20                    
CEDAR CREEK                           4.87                    
TIMBER 1.4 NNW                        4.58                    
SCAPPOOSE                             4.55                    
GRANDE RONDE                          4.50                    
SALEM/MCNARY FIELD                    3.78                    
PORT ORFORD 5.0 E                     3.69                    
PORTLAND/HILLSBORO ARPT               3.45                    
BROOKINGS 4.2 ENE                     3.17                    
FLORENCE 1.8 NW                       3.08                    
GOLD BEACH 0.6 S                      2.64                    

...WASHINGTON...
HUCKLEBERRY                           6.20                    
HOQUIAM/BOWERMAN AIRPORT              5.08                    
SHELTON/SANDERSON FIELD ARPT          5.02                    
BREMERTON NATIONAL ARPT               4.50                    
LILLIWAUP                             4.00                    
N HAMMA HAMMA                         4.00                    
OYSTERVILLE 1 SW                      3.70                    
QUILLAYUTE                            3.30                    
BATTLE GROUND                         3.29                    
BRINNON 1.7 WSW                       3.28                    
OLYMPIA AIRPORT                       3.27                    
SEATTLE/BOEING FIELD                  3.24                    
BELFAIR 3.2 WSW                       3.20                    
MONTESANO 4.5 SW                      3.18                    
TACOMA NARROWS AIRPORT                2.85                    
VANCOUVER                             2.43                    
COSMOPOLIS 6.0 SE                     2.25                    

...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 400 AM PST SAT NOV
17 THROUGH 100 AM PST TUE NOV 20...

...CALIFORNIA...
SODA SPRINGS 1.5 SSW                 12.0                    

...IDAHO...
COLBURN 4 WSW                         8.0                    

...WASHINGTON...
CHEWELAH 8 E                          9.0                    
CURLEW LAKE STATE 11 SE               6.0                    
NEWMAN LAKE 10 N                      6.0                    

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

...CALIFORNIA...
WESTHAVEN-MOONSTONE 3 N               67                    

...MONTANA...
EAST GLACIER PARK 8 SE                76                    
SAINT MARY                            67                    

...OREGON...
MOUNT HEBO                           106                    
YAQUINA HEAD                          98                    
ASTORIA 5 W                           92                    
GARIBALDI                             90                    
LINCOLN CITY                          85                    
NEWPORT                               83                    
PACIFIC CITY WSW                      75                    
ROCKAWAY BEACH                        70                    
NEWBERG                               60                    

...WASHINGTON...
NASELLE RIDGE (2000 FT)              114                    
ABERNATHY MTN                        111                    
MEGLER TOWER (1189 FT)               101                    
BENTON CITY 10 NNW                    97                    
CRYSTAL MOUNTAIN                      78                    
HURRICANE RIDGE 2 SW                  68                    


THE UPPER LEVEL LOW IS FORECAST TO PUSH SOUTHEAST OVER THE NEXT
COUPLE DAYS. HEAVY RAIN... WIND...AND HIGHER ELEVATION SNOW ARE
EXPECTED TO CONTINUE UNTIL AT LEAST THURSDAY MORNING. THE HEAVIEST
OF THE PRECIPITATION SHOULD BE CONFINED TO THE COASTLINE OF
WASHINGTON ...OREGON...AND NORTHERN CALIFORNIA WHERE RAINFALL
TOTALS OF 4 TO 8 INCHES ARE EXPECTED WITH LOCALLY HIGHER AMOUNTS
POSSIBLE. IN ADDITION...THERE IS RISK FOR FLOODING IN PORTIONS OF
OREGON AND EXTREME NORTHWESTERN CALIFORNIA TODAY AND TONIGHT.     

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.

RYAN