THE HYDROMETEOROLOGICAL PREDICTION CENTER
COLLEGE PARK, MD
STORM SUMMARY MESSAGE
STORM SUMMARY NUMBER 08 FOR PACIFIC NORTHWEST HEAVY RAIN AND SNOW
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
100 AM PST WED NOV 21 2012
...MULTI-DAY HEAVY RAIN AND SNOW EVENT CONTINUES ACROSS THE
PACIFIC NORTHWEST AND NORTHERN CALIFORNIA...
WINTER STORM WARNINGS ARE IN EFFECT FOR THE HIGH ELEVATIONS OF
CENTRAL IDAHO.
A WINTER WEATHER ADVISORY IS IN EFFECT FOR THE WEST SLOPES OF THE
NORTHERN SIERRA NEVADA. WINTER WEATHER ADVISORIES ARE ALSO IN
EFFECT FOR THE HIGHER TERRAIN OF WESTERN WASHINGTON AND
OREGON...AS WELL AS THE HIGH TERRAIN OF MONTANA.
HIGH WIND WARNINGS AND WIND ADVISORIES ARE IN EFFECT FOR AREAS OF
INTERIOR WASHINGTON...OREGON...CALIFORNIA...AND NEVADA AS WELL AS
PORTIONS OF MONTANA AND WYOMING.
FLOOD WATCHES AND WARNINGS ARE IN EFFECT FOR WESTERN PORTIONS OF
OREGON AND WASHINGTON AS WELL AS OVER NORTHERN IDAHO.
FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV
AT 100 AM PST...AN UPPER-LEVEL LOW LOCATED OVER THE NORTHEAST
PACIFIC CONTINUES TO DIRECT ENERGETIC DISTURBANCES ALOFT AND
PACIFIC MOISTURE INTO THE NORTHWESTERN U.S. NATIONAL WEATHER
SERVICE DOPPLER RADARS AND SURFACE OBSERVATIONS INDICATED ANOTHER
ROUND OF WIDESPREAD PRECIPITATION PUSHING INTO COASTAL AREAS OF
WASHINGTON...OREGON AND CALIFORNIA. MODERATE TO...AT TIMES...HEAVY
RAIN WAS FALLING IN COASTAL OREGON AND WASHINGTON...WITH LIGHTER
RAIN FALLING IN COASTAL CALIFORNIA. FARTHER INLAND...AT HIGHER
ELEVATIONS...PRECIPITATION CONTINUED TO FALL IN THE FORM OF SNOW.
FARTHER EAST ACROSS INTERIOR OREGON AND WASHINGTON AS WELL AS
IDAHO AND MONTANA...SCATTERED RAIN WAS FALLING...WITH SNOW AT THE
HIGHER ELEVATIONS.
...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 400 AM PST SAT NOV
17 THROUGH 100 AM PST WED NOV 21...
...CALIFORNIA...
FORT DICK RIVER 6.52
BONANZA KING 5.28
GASQUET RS 4.72
HONEYDEW 1 SW 4.72
CALLENGE-BROWNSVILLE 1.3 WSW 4.62
COFFEE RIDGE 4.40
GRASS VALLEY 4.32
CRESCENT CITY 5 NE 4.14
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
BLUE CANYON 3.41
NEVADA CITY 3.4 NNW 3.32
...IDAHO...
HIDDEN LAKE 4.40
SCHWEITZER BASIN 3.80
MULLAN PASS 3.49
BEAR MOUNTAIN 3.30
ATHOL 1.5 ENE 2.27
...OREGON...
HARBOR 3 NE 9.84
LEES CAMP 7.90
RED MOUNDS RAWS 7.84
NEHALEM 7.75
BROOKINGS 7.72
GOLD BEACH 7.15
CEDAR CREEK RAWS 7.03
PORT ORFORD 5 E 6.85
BANDON 3 S 6.80
ASTORIA 6.67
NESIKA BEACH 2 E 6.60
SADDLE MOUNTAIN 5.20
SCAPPOOSE 4.93
CEDAR CREEK 4.87
SALEM/MCNARY FIELD 4.79
PORTLAND/HILLSBORO ARPT 3.83
...WASHINGTON...
LEES CAMP 7.90
NEHALEM 7.75
CEDAR CREEK RAWS 7.03
TIDEWATER RAWS 6.76
FRANCES 6.50
HUCKLEBERRY 6.20
TILLAMOOK RAWS 5.58
ROCKHOUSE RAWS 5.50
HOQUIAM/BOWERMAN AIRPORT 5.40
SHELTON/SANDERSON FIELD ARPT 5.24
BREMERTON NATIONAL ARPT 4.88
OLYMPIA 4.5 NW 4.86
QUILLAYUTE 4.64
LANGLOIS 1 NNE 4.07
LILLIWAUP 4.00
SEATTLE/BOEING FIELD 3.51
OLYMPIA AIRPORT 3.48
TACOMA NARROWS AIRPORT 3.25
...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 400 AM PST SAT NOV
17 THROUGH 100 AM PST WED NOV 21...
...CALIFORNIA...
SODA SPRINGS 1.5 SSW 12.0
...IDAHO...
KETCHUM 22 NW 9.0
COLBURN 4 WSW 8.0
ARCO 33 WNW 6.0
...MONTANA...
FLATTOP MOUNTAIN 14.0
...WASHINGTON...
CHEWELAH 8 E 9.0
CURLEW LAKE STATE 11 SE 6.0
NEWMAN LAKE 10 N 6.0
WINTHROP 6.8 NNW 5.5
...SELECTED PEAK WIND GUSTS IN MILES PER HOUR EARLIER IN THE
EVENT...
...CALIFORNIA...
GASQUET 5 ESE (3698 FT) 70
ORLEANS 7 WNW (4170 FT) 70
COOSKIE MOUNTAIN RAWS (1640 FT) 68
WESTHAVEN-MOONSTONE 3 N 67
...MONTANA...
EAST GLACIER PARK 8 SE 76
BYNUM 14 W 72
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
ASTORIA 60
NEWBERG 60
...WASHINGTON...
NASELLE RIDGE (2000 FT) 114
ABERNATHY MTN 111
MOUNT HEBO 106
MEGLER TOWER (1189 FT) 101
YAQUINA HEAD 98
BENTON CITY 10 NNW 97
COLUMBIA RIVER BAR 97
CAPE DISAPPOINTMENT 92
CRYSTAL MOUNTAIN 78
HURRICANE RIDGE 2 SW 68
WIDESPREAD PRECIPITATION WILL CONTINUE TO SPREAD INTO THE PACIFIC
NORTHWEST THIS MORNING AS A VIGOROUS UPPER-LEVEL DISTURBANCE MOVES
ONSHORE. A LULL IN THE PRECIPITATION IS FORECAST ON THURSDAY
BEFORE YET ANOTHER STRONG PACIFIC STORM SYSTEM IMPACTS THE REGION
ON FRIDAY. THROUGH FRIDAY NIGHT...AN ADDITIONAL 1 TO 3 INCHES OF
RAIN IS POSSIBLE ACROSS PORTIONS OF WASHINGTON AND OREGON...WITH
LIGHTER AMOUNTS FARTHER SOUTH OVER CALIFORNIA...AS WELL AS IN THE
INTERIOR NORTHWESTERN STATES. AT THE HIGHER ELEVATIONS OF THE
CASCADES...SNOW WILL CONTINUE TO FALL...WITH ADDITIONAL SNOWFALL
AMOUNTS AS HIGH AS 1 TO 2 FEET POSSIBLE THROUGH FRIDAY. SNOW WILL
ALSO CONTINUE TO OCCUR ACROSS THE HIGH ELEVATIONS OF
MONTANA...IDAHO...AND WYOMING...WHERE UP TO A FOOT OF ADDITIONAL
SNOW MAY FALL THROUGH FRIDAY.
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
Last Updated: 345 AM EST WED NOV 21 2012