THE WEATHER PREDICTION CENTER
COLLEGE PARK, MD
STORM SUMMARY MESSAGE
STORM SUMMARY NUMBER 04 FOR POWERFUL WEST COAST STORM
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
100 AM PST FRI DEC 12 2014
...STRONG STORM IMPACTING THE WEST COAST CONTINUES TO BRING HEAVY
RAIN...WIND...AND MOUNTAIN SNOW TO THE REGION...
FLOOD AND FLASH FLOOD WATCHES...WARNINGS...AND ADVISORIES ARE IN
EFFECT FOR PORTIONS OF CALIFORNIA...AND NORTH CENTRAL WASHINGTON.
WINTER STORM WARNINGS AND WINTER WEATHER ADVISORIES ARE IN EFFECT
FOR THE HIGHER ELEVATIONS OF CENTRAL AND NORTHERN CALIFORNIA...AND
PORTIONS OF EASTERN NEVADA.
HIGH WIND WARNINGS AND WIND ADVISORIES ARE IN EFFECT FOR MUCH OF
CENTRAL CALIFORNIA...NEVADA...WESTERN UTAH...AND NORTHWEST
WASHINGTON.
FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV
AT 1200 AM PST...A STRONG LOW PRESSURE CENTER WITH A MINIMUM
CENTRAL PRESSURE OF 989 MB...29.21 INCHES...WAS LOCATED OVER
SOUTHERN VANCOUVER ISLAND...BRITISH COLUMBIA. NATIONAL WEATHER
SERVICE RADARS AND SURFACE OBSERVATIONS INDICATED HEAVY TO VERY
HEAVY RAINFALL OVERSPREADING CENTRAL CALIFORNIA AND MOVING INTO
SOUTHERN CALIFORNIA. FARTHER NORTH IN WESTERN WASHINGTON AND
OREGON...LIGHT TO MODERATE RAIN WAS BEING REPORTED. IN THE HIGHEST
ELEVATIONS OF CALIFORNIA...OREGON...AND WASHINGTON...LIGHT TO
MODERATE SNOWFALL WAS BEING REPORTED. IN ADDITION TO THE RAIN AND
SNOW...HIGH WINDS WERE ALSO IMPACTING THE WEST COAST REGIONS.
SUSTAINED WINDS ACROSS CALIFORNIA AND OREGON WERE AROUND 10 TO 20
MPH...AND IN NORTHWEST WASHINGTON NEAR THE SURFACE LOW
ITSELF...WINDS WERE EVEN HIGHER AROUND 20 TO 40 MPH. GUSTS ACROSS
THE WEST COAST AND INTO THE INTERMOUNTAIN WEST CONTINUE TO BE
APPROACHING AND EXCEEDING 50 MPH.
...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 900 AM PST WED DEC
10 THROUGH 1200 AM PST FRI DEC 12...
...CALIFORNIA...
WHISKEYTOWN 2 ENE 11.80
LAKESHORE SHASTA CO 11.24
BOGGS MOUNTAIN RAWS 10.24
VENADO 7 NNW GUERNEVILLE 9.76
GIRARD 9.32
FRENCH GULCH 4 SSW 8.96
SHASTA DAM 8.88
WHISPERING PINES 8.72
STIRLING CITY 7.83
MT. SAINT HELENA 7.01
YORKVILLE 6.56
MCCLOUD 3 S 6.53
PARADISE 6.37
CENTRAL VALLEY 3 SW 6.02
BOONVILLE RAWS 5.56
SANTA MARIA 8 ENE 1.93
EUREKA WFO 1.16
NAPA 2 NNW 1.12
...OREGON...
GOLD BEACH 2.78
SELMA 5 NNE 2.53
OBRIEN 2 SSW 2.14
MERLIN 2 W 2.11
LEES CAMP 1.90
FLORENCE 2 NW 1.45
HASKINS DAM 1.20
DALLAS 1.11
...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 900 AM PST WED DEC
10 THROUGH 1200 AM PST FRI DEC 12...
...CALIFORNIA...
TWAIN 6 S 4.0
...SELECTED PEAK WIND GUSTS IN MILES PER HOUR EARLIER IN THE
EVENT...
...CALIFORNIA...
SODA SPRINGS 4 SE 135
WHITE MOUNTAIN PEAK NE 113
INCLINE VILLAGE 6 NE 112
MAMMOTH LAKES 3 W 111
ALPINE MEADOWS 1 SW 109
GRAPEVINE 3 SSE 91
SIERRAVILLE 5 SSE 74
KEENE 7 SW 71
MT. DIABLO 68
WOODACRE 63
GASQUET 12 SE 62
WEITCHPEC 11 WSW 60
PETROLIA 4 S 58
CRESCENT CITY 1 ESE 53
KNEELAND 50
...NEVADA...
GARDNERVILLE 5 WSW 93
GALENA E 82
CARSON CITY 3 ENE 76
RENO 4 SE 70
SPANISH SPRINGS AIR 3 W 66
VERDI 4 E 63
...OREGON...
RUCH 12 S 117
SQUAW PEAK 117
CAYUSE 1 WNW 95
MILTON-FREEWATER 11 ENE 91
MT HEBO 90
PORT ORFORD 5 SE 90
TILLAMOOK 15 ESE 90
SEA LION CAVES 89
MARYS PEAK 88
BROOKINGS 1 SE 81
KOOSKOOSKIE 3 WSW 78
SPRAGUE RIVER 12 NNW 76
PENDLETON 10 SE 75
SUTHERLIN 7 ESE 75
ASHLAND 1 ENE 74
PORTLAND ARPT 67
...WASHINGTON...
NASELLE 77
DIXIE 64
WALLA WALLA 63
CAMANO 2 SSE 61
WAITSBURG 61
FREELAND 2 SSE 59
PORT TOWNSEND 1 SE 59
MCCHORD AFB 58
BANKS 56
THE SURFACE LOW WILL TRACK EASTWARD ACROSS WESTERN CANADA
THROUGHOUT THE DAY ON FRIDAY... WHILE THE ASSOCIATED COLD FRONT
WILL PUSH EASTWARD ACROSS THE INTERMOUNTAIN WEST. THE HEAVY
RAINFALL ACROSS CENTRAL AND SOUTHERN CALIFORNIA SHOULD BEGIN TO
TAPER OFF BY THE AFTERNOON HOURS ON FRIDAY. ACROSS THE
INTERMOUNTAIN WEST...SOME LIGHT TO MODERATE RAIN CAN BE EXPECTED
THROUGH SATURDAY. ANOTHER 2 TO 3 INCHES OF RAIN CAN BE EXPECTED
ALONG FAVORABLE SLOPES OF CENTRAL AND SOUTHERN CALIFORNIA AND
GENERALLY LESS THAN AN INCH FOR THE REMAINDER OF THE WEST COAST
AND INTERMOUNTAIN REGIONS. SNOW WILL FALL IN THE HIGHEST
ELEVATIONS OF CALIFORNIA...WITH AN ADDITIONAL 12 TO 18 INCHES
POSSIBLE ON FRIDAY...ESPECIALLY IN THE SOUTHERN SIERRAS. FARTHER
EAST IN THE HIGHER TERRAIN OF NEVADA... 6 TO 12 INCHES OF SNOW CAN
BE EXPECTED.
THE NEXT STORM SUMMARY WILL BE ISSUED BY THE WEATHER PREDICTION
CENTER AT 700 AM PST. PLEASE REFER TO YOUR LOCAL NATIONAL WEATHER
SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS EVENT.
SANTORELLI
Last Updated: 356 AM EST FRI DEC 12 2014