THE HYDROMETEOROLOGICAL PREDICTION CENTER
COLLEGE PARK, MD
STORM SUMMARY MESSAGE
STORM SUMMARY NUMBER 20 FOR WESTERN U.S. HEAVY RAIN AND SNOW
NWS HYDROMETEOROLOGICAL PREDICTION CENTER COLLEGE PARK MD
700 AM PST TUE DEC 04 2012
...ANOTHER ROUND OF RAIN AND SNOW IMPACTING THE PACIFIC
NORTHWEST...
FLOOD WATCHES AND WARNINGS ARE IN EFFECT FOR WESTERN PORTIONS OF
WASHINGTON AND OREGON AS WELL AS EXTREME NORTHERN CALIFORNIA.
HIGH WIND WATCHES AND WARNINGS AS WELL AS WIND ADVISORIES ARE IN
EFFECT FOR PORTIONS OF EXTREME NORTHERN CALIFORNIA...MUCH OF
OREGON...AS WELL AS PORTIONS OF WASHINGTON...IDAHO...MONTANA AND
WYOMING.
WINTER STORM WARNINGS AND WINTER WEATHER ADVISORIES ARE IN EFFECT
FOR THE CASCADES IN WASHINGTON STATE...AS WELL AS MUCH OF WESTERN
WYOMING AND CENTRAL IDAHO.
FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV
AT 600 AM PST...AN EXPANSIVE AREA OF LOW PRESSURE IN THE NORTHERN
PACIFIC WAS EJECTING ANOTHER SURFACE LOW AND FRONTAL SYSTEM TOWARD
THE U.S./CANADA WEST COAST. A SURFACE LOW WITH A CENTRAL PRESSURE
OF 979 MB...28.91 INCHES...WAS LOCATED JUST OFFSHORE OF BRITISH
COLUMBIA. A FRONTAL SYSTEM EXTENDED SOUTH FROM THE LOW AND WAS
BEGINNING TO PUSH ONSHORE IN THE OLYMPIC PENINSULA. NATIONAL
WEATHER SERVICE RADARS AND SURFACE OBSERVATIONS INDICATED
SCATTERED TO WIDESPREAD LIGHT TO MODERATE RAIN FROM NORTHERN
CALIFORNIA INTO WASHINGTON AND OREGON. WHILE SNOW LEVELS HAVE
INCREASED RELATIVE TO PREVIOUS DAYS...LIGHT TO MODERATE SNOW
CONTINUES TO FALL IN THE CASCADES IN WASHINGTON...AS WELL AS
FARTHER INLAND ACROSS THE HIGH ELEVATIONS OF IDAHO AND WYOMING.
...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 400 PM PST TUE NOV
27 THROUGH 600 AM PST TUE DEC 04...
...CALIFORNIA...
BRANDY CREEK (SHASTA) 23.48
STERLING CITY (FEATHER) 21.24
SIMS 17.90
PETROLIA 7.4 SE 17.50
NORTH COAST CAMP SIX 16.64
BRIDGEVILLE 5.2 ENE 15.72
OAK MOUNTAIN 15.16
MIRANDA 4.1 SW 14.98
CAZADERO 6.9 WNW 14.45
KINGVALE 1.3 WSW 14.37
LOS GATOS 6.1 S 13.89
BLUE CANYON 13.42
REDWAY 1.8 WSW 13.39
BRANDY CRK 12.60
SECRET TOWN 12.55
BEALE AFB/MARYSVILLE 9.55
SAN FRANCISCO INTL AIRPORT 4.09
...IDAHO...
MULLAN PASS 4.10
YELLOW PINE 0.2 SSW 3.17
MCCALL 9.3 SSE 3.16
GARDEN VALLEY 2.7 NW 2.86
DOVER 0.4 SW 1.95
SAGLE 1.8 NNE 1.79
SANDPOINT 13.3 NE 1.77
ST. MARIES 2.8 S 1.57
ATHOL 1.5 ENE 1.52
CLARK FORK 3.5 SE 1.50
...MONTANA...
NOXON 9.1 NNW 1.64
LIBBY 28.0 SSW 1.24
...NEVADA...
RENO 5.6 WSW 3.29
GARDNERVILLE 3.9 S 2.17
CARSON CITY 2.3 NNE 1.67
SPARK 1.26
INCLINE VILLAGE 4 NE 1.12
...OREGON...
OBRIEN 2 SW 12.35
FOSS 10.38
BROOKINGS 4.2 ENE 8.28
MEDFORD 5.0 SSW 7.83
GOLD HILL 5.4 NNW 6.85
CAVE JUNCTION 3.7 E 6.65
GRANTS PASS 6.1 SSE 6.54
CENTRAL POINT 5.7 NW 6.53
PORT ORFORD 5.0 E 6.49
WILLIAMS 1 NW 6.34
ASHLAND 1.4 ESE 6.29
SHADY COVE 0.2 S 5.90
SEXTON SUMMIT 5.85
ASTORIA 5.17
PORTLAND/HILLSBORO ARPT 2.91
...WASHINGTON...
WYNOOCHEE LAKE 13.05
BRINNON 1.7 WSW 8.71
BREMERTON NATIONAL ARPT 6.42
QUILLAYUTE 5.96
TRACYTON 2.3 WSW 5.54
HOQUIAM/BOWERMAN AIRPORT 5.09
MONTESANO 4.5 SW 4.53
GRAYS RIVER 0.9 SSE 4.52
BREMERTON 2.9 NNE 4.34
OLYMPIA AIRPORT 4.14
PORT LUDLOW 1.1 SSE 3.97
CHIMACUM 5.1 S 3.94
SILVERDALE 5.5 NNW 3.87
OCEAN SHORES 1.2 N 3.83
SEATTLE/BOEING FIELD 3.83
...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 400 PM PST TUE NOV
27 THROUGH 600 AM PST TUE DEC 04...
...CALIFORNIA...
MT ROSE SKI 45.0
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
SODA SPRINGS 1.5 SSW 12.0
SUGAR BOWL SKI RESORT 12.0
CHAGOOPA PLATEAU SNOTEL 10.0
ALPINE MEADOWS 9.0
CHARLOTTE LAKE SNOTEL 8.0
TUNNEL GUARD STATION 8.0
CHAGOOPA PLATEAU 7.0
KAISER POINT 7.0
...IDAHO...
DEADWOOD SUMMIT 1 W 46.0
GROUSE 16 WNW 43.0
KETCHUM 16 WSW 42.0
ISLAND PARK 4 WSW 34.0
CHALLIS 13 WSW 28.0
KETCHUM 22 NW 25.4
JAMES CREEK SUMMIT 1 ESE 24.0
N TRINITY LAKES 20.0
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 16.0
BIG SKY 22 S 9.0
EAST PORTAL 5 NNW 8.0
LAKEVIEW 1 SW 7.0
...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...
MAMMOTH MOUNTAIN 150
WARD MOUNTAIN 139
LAKE CITY 3 E 90
SANDBERG 86
HIGH GLADE LOOKOUT 81
INDEPENDENCE 5 NW 79
SIERRAVILLE 5 SSW 78
DUNCAN PEAK RAWS 77
REDDING 2 S 71
MT. DIABLO RAWS 67
BLUE CANYON 66
RIVERSIDE 63
SAN FRANCISCO INTL ARPT 50
...MONTANA...
LIVINGSTON 2 WSW 77
NYE 5 SW 76
EMIGRANT 3 SSE 67
MCALLISTER 4 NNE 67
BOULDER 61
...NEVADA...
WARD MOUNTAIN 139
MOUNT ROSE SKI ARE 95
RENO 2 SSE 95
LAKE CITY 90
MOUNT MONTGOMERY 5 ENE 88
WASHOE CITY 1 S 84
JARBIDGE 9 E 83
WALTER LAKE 80
VIRGINIA CITY 4 NNW 77
KYLE CANYON RAWS 73
CARSON CITY 6 SW 72
GARDNERVILLE 5 WSW 68
SILVER SPRINGS 68
...OREGON...
NEWPORT 84
GARIBALDI 1 SW 73
LEBANON 5 WSW 71
SPRAGUE RIVER 10 SSE 60
...SOUTH DAKOTA...
BUFFALO 1 N 59
...UTAH...
CENTRAL WASATCH PEAKS 113
ALTA 85
SNOWBASIN 72
BRIGHTON 71
PARK CITY 71
...WYOMING...
SHERIDAN 68
ELK MOUNTAIN 5 W 59
ARLINGTON 54
MOISTURE ASSOCIATED WITH THE FRONTAL SYSTEM IS FORECAST TO
CONTINUE PUSHING ONSHORE INTO THE PACIFIC NORTHWEST AND NORTHERN
CALIFORNIA TODAY...RESULTING IN AN ADDITIONAL 1 TO 4 INCHES OF
RAIN. THERE MAY BE ISOLATED HIGHER AMOUNTS...WHICH COULD LEAD TO
LOCALIZED FLOODING ISSUES ON ALREADY SATURATED GROUND ESPECIALLY
IN NORTHWESTERN CALIFORNIA TODAY. OVER THE CASCADES AND PARTS OF
THE NORTHERN ROCKIES...AN ADDITIONAL 1 TO 2 FEET OF SNOW...WITH
LOCALLY HIGHER AMOUNTS WILL BE POSSIBLE THROUGH WEDNESDAY. STRONG
AND GUSTY WINDS WILL ALSO BE POSSIBLE...ESPECIALLY ALONG THE COAST
AND IN THE HIGHER ELEVATIONS.
THE NEXT STORM SUMMARY WILL BE ISSUED BY THE HYDROMETEOROLOGICAL
PREDICTION CENTER AT 100 PM PST. PLEASE REFER TO YOUR LOCAL
NATIONAL WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS
EVENT.
RYAN
Last Updated: 949 AM EST TUE DEC 04 2012