THE WEATHER PREDICTION CENTER

COLLEGE PARK, MD


STORM SUMMARY MESSAGE



STORM SUMMARY NUMBER 10 FOR PACIFIC NORTHWEST AND NORTHERN
CALIFORNIA HEAVY RAINFALL
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
100 PM PST THU DEC 10 2015

...LIGHT TO MODERATE AND HEAVY RAIN CONTINUES ACROSS PARTS OF THE
NORTHWESTERN U.S. TODAY AND TOMORROW... 

HIGH WIND WARNINGS AND WIND ADVISORIES ARE IN EFFECT FOR PORTIONS
OF COASTAL WASHINGTON AND OREGON...AND THE CENTRAL GREAT BASIN
STATES.

WINTER STORM WARNINGS ARE IN EFFECT FOR THE SIERRA NEVADA RANGE IN
CALIFORNIA. THERE ARE ALSO WINTER WEATHER ADVISORIES ARE IN EFFECT
FOR THE WASHINGTON CASCADES...AND THE HIGHER TERRAIN OF THE
INTERMOUNTAIN WEST.

SCATTERED AREAS OF FLOOD WATCHES...WARNINGS...AND ADVISORIES
CONTINUE ACROSS PORTIONS OF WESTERN WASHINGTON...OREGON...AND
NORTHWEST CALIFORNIA.

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

AT 000 PM PST...A CLASSIC ATMOSPHERIC RIVER EVENT CONTINUED ACROSS
THE PACIFIC NORTHWEST WITH PLENTY OF SUBTROPICAL MOISTURE STILL
STREAMING INTO THE REGION AS THE LAST OF A SERIES OF UPPER LEVEL
DISTURBANCES MOVED INTO THE NORTHWEST. AT THE SURFACE...A FRONTAL
SYSTEM HAD MOVED ONSHORE THIS MORNING...CURRENTLY LOCATED ACROSS
IDAHO...NEVADA...AND CENTRAL CALIFORNIA. NATIONAL WEATHER SERVICE
DOPPLER RADARS AND SURFACE OBSERVATIONS SHOWED AN AREA OF LIGHT TO
MODERATE RAIN...WITH LOCALLY HEAVIER RAIN...FALLING ACROSS
PORTIONS OF WESTERN WASHINGTON...WESTERN OREGON...AND NORTHERN
CALIFORNIA. LIGHT TO MODERATE RAIN...WITH HIGHER ELEVATION
SNOW...WAS ALSO FALLING AHEAD OF THE BOUNDARY ACROSS PARTS OF THE
INTERMOUNTAIN WEST.

...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 400 PM PST MON DEC
07 THROUGH 100 PM PST THU DEC 10...

...CALIFORNIA...
LAYTONVILLE 1.1 SW                    3.30                    
CRESCENT CITY 10.6 NE                 3.27                    
VENADO 7 NNW GUERNEVILLE              2.96                    
MIDDLE PEAK RAWS                      2.82                    
MT.SAINT HELENA                       2.36                    
REDDING 3.7 N                         2.29                    
MT. SAINT HELENA                      2.20                    
CRESCENT CITY/MC NAMARA FIELD         1.95                    
ARCATA AIRPORT                        1.58                    
REDDING MUNI ARPT                     1.44                    
GUERNEVILLE 2 WSW                     1.36                    
CAZADERO - HUCKLEBERRY HEIGHT         1.25                    
VENADO 7 NNW                          1.20                    
OCCIDENTAL                            1.05                    

...IDAHO...
BEAR MOUNTAIN                         6.70                    
SCHWEITZER BASIN                      5.20                    
MULLAN PASS                           4.62                    
COOL CREEK                            4.20                    
HIDDEN LAKE                           4.10                    
LOOKOUT                               3.50                    
COLBURN 2 ESE                         3.01                    
SHANGHI SUMMIT                        2.80                    
CRATER MEADOWS                        2.50                    
HEMLOCK BUTTE                         1.80                    
PIERCE                                1.73                    
LOLO PASS                             1.70                    
LOWMAN 9.6 ENE                        1.57                    
GARDEN VALLEY 2.7 NW                  1.56                    
OROFINO 3 NE                          1.16                    

...MONTANA...
HOODOO BASIN                          4.30                    
FLATTOP MTN                           4.20                    
TWIN LAKES                            3.70                    
HERON 6 NE                            2.82                    
TWELVEMILE CREEK                      2.50                    
NOISY BASIN                           1.90                    

...OREGON...
NEHALEM 4.1 ESE                       7.06                    
SADDLE MOUNTAIN                       5.90                    
SOUTH FORK                            5.90                    
ASTORIA AIRPORT                       5.47                    
RED HILL                              5.40                    
SUMMIT                                5.30                    
RYE MOUNTAIN                          5.09                    
LOG CREEK                             4.90                    
ST. HELENS 3.5 NW                     4.90                    
VERNONIA 7.2 SW                       4.90                    
BROOKINGS                             3.56                    
WFO PORTLAND ROOFTOP WEATHER          3.35                    
PORTLAND INTL AIRPORT                 3.22                    

...WASHINGTON...
STEVENS PASS                          5.70                    
TELMA 3 W                             5.47                    
SHELTON/SANDERSON FIELD ARPT          5.38                    
YACOLT 9.0 N                          5.33                    
NORTH BEND 5.4 ESE                    4.85                    
HUCKLEBERRY RIDGE                     4.31                    
JUNE LAKE                             4.30                    
SHEEP CANYON                          4.20                    
TRINITY SNOTEL                        4.20                    
OLYMPIA AIRPORT                       4.13                    
GLENOMA                               4.04                    
HOQUIAM/BOWERMAN AIRPORT              3.76                    
POTLATCH 2 N                          3.75                    
PARK CREEK RIDGE                      3.70                    
SWIFT CREEK                           3.60                    
SEATTLE/TACOMA INTL ARPT              3.55                    
ROCK CREEK                            3.47                    
ABERNATHY MTN                         3.39                    

...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 400 PM PST MON DEC
07 THROUGH 100 PM PST THU DEC 10...

...IDAHO...
KETCHUM 22 NW                        15.2                    
ISLAND PARK 8 NW                     13.2                    
STANLEY 16 NW                        10.4                    
FAIRFIELD 10 NNW                      8.3                    
HAILEY 21 ENE                         7.1                    
ATLANTA 12 NW                         6.8                    
BURLEY 18 SE                          5.8                    
ARCO 33 WNW                           4.6                    
MACKAY 32 NE                          4.1                    
CHALLIS 27 NNE                        3.2                    
LAVA HOT SPRINGS 10 SSE               2.4                    
PRESTON 20 NE                         2.3                    

...MONTANA...
ISLAND PARK 16 NE                    19.8                    
WEST YELLOWSTONE 6 S                 10.4                    

...WASHINGTON...
WINTHROP 6.8 NNW                      3.7                    

...WYOMING...
DRIGGS 32 NNE                        11.3                    
PINEDALE 25.9 NNW                     5.5                    

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

...CALIFORNIA...
SLATE CREEK RAWS                      80                    
MENDOCINO PASS RAWS                   79                    
SHIP MTN RAWS NEAR CASQUET            77                    
CAMP SIX RAWS NEAR CASQUET            70                    
ANTELOPE LAKE 5 NNW                   62                    

...COLORADO...
BERTHOUD PASS                         84                    
GOLD HILL 2 S                         82                    

...IDAHO...
COLBURN 5 W                           66                    
HUETTER 2 NNE                         52                    

...MONTANA...
EAST GLACIER PARK 8 SE                85                    
BYNUM 13 W                            82                    
LIVINGSTON 6 ENE                      77                    
CASCADE                               76                    
FORT BENTON 8 SSW                     72                    
BURGESS JUNCTION 1 NW                 71                    
BOZEMAN 11 E                          70                    
DEVON 7 NW                            68                    
RED LODGE 6 WSW                       67                    
MCALLISTER 5 NNE                      63                    
FORT BELKNAP 13 S                     62                    
CUT BANK SIRPORT                      58                    
GREYCLIFF 13 SSW                      58                    

...OREGON...
MOUNT HOOD 1 SE                      125                    
MARYS PEAK                            97                    
PHILOATH 15 WSW                       94                    
OCEANSIDE                             88                    
HEBO 4 E                              85                    
FLORENCE 13 N                         80                    
DALLAS 10 WSW                         79                    
SEA LION CAVES                        75                    
PACIFIC CITY                          71                    
TIDEWATER                             69                    
YACHATS                               63                    
LINCOLN BEACH 1 N                     61                    
RIDGEFIELD 3 SSW                      61                    
WALDPORT                              60                    
NEWPORT 2 S                           59                    

...WASHINGTON...
MISSION RIDGE SKI AREA               100                    
NORTH BONNEVILLE 10 NW                92                    
CASTLE ROCK 15 WNW                    83                    
NASELLE 3 NNE                         74                    
COLBURN 5 W                           73                    
COOK 2 WNW                            73                    
THORNTON 3 SW                         63                    
FERNDALE                              62                    
MEGLER 1 NW                           59                    

...WYOMING...
SUNLIGHT BASIN 8 E                    96                    
CLARK 5 WNW                           86                    
BUFORD 7 NE                           83                    
CHEYENNE 10 WSW                       75                    
WHEATLAND 9 S                         71                    
WHITAKER                              67                    
ARLINGTON 7 ESE                       66                    
ELK MOUNTAIN 7 NW                     60                    
GLENROCK 2 SSE                        60                    


MOISTURE WILL CONTINUE TO FEED INTO THE REGION AS THE UPPER LEVEL
ENERGY MOVES ACROSS THE NORTHWEST U.S. TODAY. THE HEAVIEST AXIS OF
RAIN TODAY AND INTO FRIDAY IS EXPECTED TO CONCENTRATE OVER
NORTHWEST CALIFORNIA WHERE ANOTHER 2 TO 5 INCHES OF RAIN...WITH
LOCALLY HIGHER AMOUNTS IS EXCPECTED. RAIN WILL ALSO CONTINUE TO
FALL ACROSS THE PACIFIC NORTHWEST WHERE ANOTHER 2 TO 4 INCHES OF
RAIN EXPECTED THROUGH THE REST OF THE WEEK...ESPECIALLY IN AREAS
WITH FAVORABLE UPSLOPE. ALL OF THIS HEAVY RAINFALL MAY LEAD TO
FLOODING. IN ADDITION TO THE RAINFALL...HEAVY SNOWFALL CAN BE
EXPECTED ACROSS THE SIERRA NEVADA RANGE OF CALIFORNIA AS WELL AS
HIGHER ELEVATIONS OF THE NORTHERN INTERMOUNTAIN WEST.

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

KREKELER




Last Updated: 333 PM EST THU DEC 10 2015