THE HYDROMETEOROLOGICAL PREDICTION CENTER
COLLEGE PARK, MD
STORM SUMMARY MESSAGE
STORM SUMMARY NUMBER 11 FOR WESTERN U.S. HEAVY RAIN AND SNOW
NWS HYDROMETEOROLOGICAL PREDICTION CENTER COLLEGE PARK MD
100 AM PST SUN DEC 02 2012
...HEAVY RAIN...SNOW...AND WIND CONTINUE TO IMPACT THE WESTERN
STATES...
WINTER STORM WARNINGS AND WINTER WEATHER ADVISORIES ARE IN EFFECT
FOR THE HIGHER ELEVATIONS OF WASHINGTON...OREGON AND EXTREME
NORTHERN CALIFORNIA...MUCH OF IDAHO...WESTERN MONTANA...WESTERN
WYOMING AND NORTHERN UTAH.
FLOOD AND FLASH FLOOD WATCHES AND WARNINGS ARE IN EFFECT FOR
PORTIONS OF NORTHERN AND CENTRAL CALIFORNIA WHILE EXTENDING INTO
WEST-CENTRAL NEVADA...AS WELL AS SOUTHWESTERN OREGON AND WESTERN
WASHINGTON.
HIGH WIND WATCHES...WARNINGS...AND WIND ADVISORIES ARE IN EFFECT
FOR A LARGE AREA OF THE WEST COAST AND INTERMOUNTAIN STATES.
FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV
AT 1200 AM PST...AN EXPANSIVE AREA OF LOW PRESSURE WITH A CENTRAL
PRESSURE OF 980 MB...28.94 INCHES...CENTERED OVER THE NORTHEAST
PACIFIC CONTINUES TO FEED MOISTURE INTO THE WESTERN U.S. A FRONTAL
SYSTEM EXTENDING TO THE SOUTHEAST OF THE LOW IS NEARING THE COAST
AND SHOULD MOVE INLAND BEFORE DAYBREAK. NATIONAL WEATHER SERVICE
DOPPLER RADARS AND SURFACE OBSERVATIONS INDICATED AN EXPANSIVE
AXIS OF MODERATE TO HEAVY RAINFALL HAMMERING THE PACIFIC NORTHWEST
AND NORTHERN CALIFORNIA. IN PARTICULAR...UPSLOPE ENHANCEMENTS WERE
SEEN OVER THE SHASTA RANGE AS WELL AS THE OLYMPICS AND OREGON
CASCADES. EAST OF THE CASCADES...THE PRECIPITATION WAS MUCH MORE
SCATTERED IN NATURE ACROSS INTERIOR WASHINGTON/OREGON AND NORTHERN
IDAHO/WESTERN MONTANA. OVERALL...MUCH OF THE PRECIPITATION WAS IN
THE FORM OF RAIN BUT SNOW HAS BEEN OCCURRING IN THE HIGHER
ELEVATIONS OF THE NORTHWEST AND INTERMOUNTAIN WEST.
...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 400 PM PST TUE NOV
27 THROUGH 1200 AM PST SUN DEC 02...
...CALIFORNIA...
BRANDY CRK 12.60
STIRLING CITY 12.09
CAZADERO 6.9 WNW 11.23
WHISPERING PINES 11.16
PETROLIA 7.4 SE 11.15
LA PORTE SNOW COURSE 10.60
BRIDGEVILLE 5.2 ENE 10.19
PIT RIVER POWERHOUSE 10.00
BLUE CANYON 9.88
OAK MOUNTAIN RAWS 9.41
ST. HELENA 5 ESE 8.82
CRESCENT CITY 4.2 NE 8.57
GREENFIELD 24 SW 8.15
CLEAR CRK 8.08
LUCIA 5 NNW 8.03
VENADO 8.00
SIMS 1 SSW 7.50
SANTA ROSA/SONOMA CO. AIRPORT 6.11
SAN FRANCISCO INTL AIRPORT 3.14
SACRAMENTO EXECUTIVE ARPT 2.70
...IDAHO...
MCCALL 9.3 SSE 1.89
MULLAN PASS 1.86
GARDEN VALLEY 2.7 NW 1.56
...NEVADA...
RENO 5.6 WSW 1.47
CARSON CITY 2 NNW 1.06
...OREGON...
OBRIEN 2 SW 8.77
BROOKINGS 4.2 ENE 5.42
RUCH 1 NW 4.90
CAVE JUNCTION 3.7 E 4.81
GOLD HILL 5.4 NNW 4.79
WILLIAMS 1 NW 4.64
MERLIN 6 SW 4.50
CENTRAL POINT 5.7 NW 4.49
TRAIL 2.3 NNW 4.38
JACKSONVILLE 8.9 WSW 4.11
WILLIAMS 1 W 4.09
SEXTON SUMMIT 3.62
MEDFORD-JACKSON CO ARPT 3.51
APPLEGATE 5 NNW 3.43
GRANTS PASS 4 N 3.30
...WASHINGTON...
BRINNON 1.7 WSW 5.82
TRACYTON 2.3 WSW 4.45
BREMERTON NATIONAL ARPT 3.93
QUILLAYUTE 3.65
BELFAIR 3.2 WSW 3.43
HOQUIAM/BOWERMAN AIRPORT 3.04
BRINNON 3 SW 2.95
SHELTON/SANDERSON FIELD ARPT 2.91
MAPLE FALLS 4 N 2.50
BAINBRIDGE 2 N 2.35
COPALIS CROSSING 2.1 NNW 2.29
OLYMPIA AIRPORT 2.12
SEATTLE/BOEING FIELD 2.02
...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 400 PM PST TUE NOV
27 THROUGH 1200 AM PST SUN DEC 02...
...CALIFORNIA...
MAMMOTH LAKES 2 WNW 26.0
KIRKWOOD SKI RESORT 22.0
SIERRA AT TAHOE 19.0
KAISER POINT SNOTEL 18.0
MITCHELL MEADOW SNOTEL 15.0
VOLCANIC KNOB SNOTEL 14.0
BISHOP PASS SNOTEL 12.0
SUGAR BOWL SKI RESORT 12.0
CHAGOOPA PLATEAU SNOTEL 10.0
ALPINE MEADOWS 9.0
CHARLOTTE LAKE SNOTEL 8.0
SODA SPRINGS 1.5 SSW 8.0
TUNNEL GUARD STATION 8.0
CHAGOOPA PLATEAU 7.0
KAISER POINT 7.0
...IDAHO...
KETCHUM 22 NW 25.4
ISLAND PARK 8 NW 14.9
MACKAY 17 SW 14.7
ARCO 33 WNW 12.5
STANLEY 28 NE 10.0
...MONTANA...
WEST YELLOWSTONE 10 S 9.0
...NEVADA...
MOUNT ROSE SKI AREA 23.0
DAGGET PASS 8.0
...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...
SANDBERG 86
INDEPENDENCE 5 NW 79
SIERRAVILLE 5 SSW 78
REDDING 2 S 71
HIGH GLADE LOOKOUT 67
MT. DIABLO RAWS 67
BLUE CANYON 66
DOYLE 3 N 66
OXNARD AIRPORT 66
DUNCAN PEAK RAWS 64
HONEY LAKE 3 SE 64
SADDLEBACK RAWS 63
REDDING 61
CRESCENT MILLS 3 SW 60
JANESVILLE 60
...NEVADA...
MOUNT ROSE SKI AREA 4 NE 90
MOUNT MONTGOMERY 5 ENE 88
WASHOE CITY 1 S 84
VIRGINIA CITY 4 NNW 77
KYLE CANYON RAWS 73
CARSON CITY 6 SW 72
GARDNERVILLE 5 WSW 68
RENO 10 S 68
SILVER SPRINGS 68
...OREGON...
NEWPORT 74
SPRAGUE RIVER 10 SSE 60
...WASHINGTON...
WENATCHEE/PANGBORN MEM AIRPORT 89
...WYOMING...
ELK MOUNTAIN 5 W 59
PACIFIC MOISTURE WILL CONTINUE TO IMPACT THE NORTHWESTERN STATES
THROUGH THE NEXT FEW DAYS. THROUGH WEDNESDAY MORNING...AN
ADDITIONAL 2 TO 5 INCHES OF RAIN...WITH LOCALLY HIGHER
AMOUNTS...WILL BE POSSIBLE ACROSS AREAS OF NORTHERN CALIFORNIA AS
WELL AS WESTERN PORTIONS OF OREGON/WASHINGTON. FLOODING AND FLASH
FLOODING WILL BE POSSIBLE IN THESE AREAS. AT HIGHER
ELEVATIONS...WHERE SNOW IS FALLING...AN ADDITIONAL 1 TO 3 FEET OF
SNOW WILL BE POSSIBLE THROUGH WEDNESDAY. THIS INCLUDES THE CENTRAL
SIERRA NEVADA...OREGON/WASHINGTON CASCADES...AND INTO THE UPPER
INTERMOUNTAIN WEST.
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.
RUBIN-OSTER
Last Updated: 349 AM EST SUN DEC 02 2012