THE HYDROMETEOROLOGICAL PREDICTION CENTER
COLLEGE PARK, MD
STORM SUMMARY MESSAGE
STORM SUMMARY NUMBER 05 FOR WESTERN U.S. HEAVY RAIN AND SNOW
NWS HYDROMETEOROLOGICAL PREDICTION CENTER COLLEGE PARK MD
100 PM PST FRI NOV 30 2012
...MULTI-DAY RAIN...WIND...AND SNOW EVENT CONTINUES TO IMPACT THE
NORTHWEST...
FLOOD AND FLASH FLOOD WATCHES AND WARNINGS AND ADVISORIES ARE IN
EFFECT FOR CALIFORNIA... AND SMALL PARTS OF COASTAL OREGON AND THE
PUGET SOUND.
HIGH WIND WATCHES...WARNINGS...AND WIND ADVISORIES ARE IN EFFECT
FOR PORTIONS OF CENTRAL CALIFORNIA... SOUTHERN OREGON... NEVADA...
AND WESTERN MONTANA.
WINTER STORM WATCHES AND WARNINGS ARE IN EFFECT FOR HIGHER
ELEVATIONS OF IDAHO...MONTANA...AND WYOMING. A WINTER WEATHER
ADVISORY IS IN EFFECT FOR THE SIERRA IN CALIFORNIA AS WELL AS
EXTREME EASTERN IDAHO.
FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV
AT 1200 PM PST...AN EXPANSIVE AREA OF LOW PRESSURE WITH A CENTRAL
PRESSURE OF 970 MB...28.64 INCHES...CENTERED OVER THE NORTHEAST
PACIFIC CONTINUES TO FEED MOISTURE INTO THE WESTERN U.S. NATIONAL
WEATHER SERVICE DOPPLER RADARS AND SURFACE OBSERVATIONS INDICATED
SCATTERED TO WIDESPREAD MODERATE TO HEAVY RAIN ACROSS CENTRAL AND
NORTHERN CALIFORNIA...NORTHERN NEVADA... AND WESTERN WASHINGTON.
SOME LIGHTER AND MORE SCATTERED PRECIPITATION WAS ALSO FALLING IN
PARTS OF OREGON... SOUTHERN IDAHO... AS WELL AS WESTERN AND
CENTRAL MONTANA. THE MAJORITY OF THE PRECIPITATION IS FALLING IN
THE FORM OF RAIN. HOWEVER...IN THE HIGHER ELEVATIONS OF THE
CASCADES AND SIERRAS... THE PRECIPITATION WAS FALLING AS SNOW.
...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 400 PM PST TUE NOV
27 THROUGH 1200 PM PST FRI NOV 30...
...CALIFORNIA...
PETROLIA 7.4 SE 10.09
CAZADERO 6.9 WNW 9.11
ST. HELENA 5 ESE 8.82
BRIDGEVILLE 5.2 ENE 8.36
CRESCENT CITY 4.2 NE 7.25
VENADO 7.12
MC CLOUD 9 SSE 7.07
PINECREST 6.86
WHISPERING PINES 6.32
ORICK 5.9 SSW 5.92
TRINITY CENTER 12 SSE 5.16
GASQUET 5.00
COFFEE RIDGE 4.96
ELK VALLEY 5 S 4.92
...OREGON...
OBRIEN 2 SSW 5.31
MERLIN 6 SW 4.50
APPLEGATE 5 NNW 3.43
GRANTS PASS 4 N 3.30
RIDDLE 3.30
WILLIAMS 1 NW 3.30
SELMA 5 NNE 3.23
CAVE JUNCTION 2 N 3.14
MURPHY 1 SSE 2.62
MEDFORD-JACKSON CO. ARPT 2.48
CRATER LAKE NATL PARK 2.38
SEXTON SUMMIT 2.34
EUGENE 2.2 SW 2.20
...WASHINGTON...
COPALIS CROSSING 2.1 NNW 2.29
BRINNON 1.7 WSW 1.93
QUILLAYUTE 1.42
ABERDEEN 0.7 WSW 1.32
...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 400 PM PST TUE NOV
27 THROUGH 1200 PM PST FRI NOV 30...
...CALIFORNIA...
CHARLOTTE LAKE 8.0
CHAGOOPA PLATEAU 7.0
KAISER POINT 7.0
VOLCANIC KNOB 6.0
FAREWELL GAP 5.0
SODA SPRINGS 1.5 SSW 4.0
...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...
INDEPENDENCE 5 NW 79
SANDBERG 75
REDDING 2 S 71
HIGH GLADE LOOKOUT 67
MT. DIABLO RAWS 67
BLUE CANYON 66
DUNCAN PEAK RAWS 64
SADDLEBACK RAWS 63
REDDING 61
CRESCENT MILLS 3 SW 60
JANESVILLE 60
OXNARD AIRPORT 57
MONTAGUE/SISKIYOU CO. ARPT 53
HALF MOON BAY 1 SSW 42
...NEVADA...
MOUNT ROSE SKI AREA 4 NE 80
CARSON CITY 6 SW 72
RENO 2 NE 60
RENO/CANNON INTL ARPT 57
GARDNERVILLE 5 E 54
...OREGON...
SPRAGUE RIVER 10 SSE 60
THE MODERATE TO HEAVY PRECIPITATION IS EXPECTED TO CONTINUE FOR
MUCH OF THE PACIFIC NORTHWEST AND NORTHERN CALIFORNIA THROUGH AT
LEAST SUNDAY. SOME AREAS COULD RECEIVE STORM TOTAL RAINFALL OF 12
TO 15 INCHES...WITH LOCALLY HIGHER AMOUNTS POSSIBLE. IN THE HIGHER
ELEVATIONS OF THE WESTERN U.S...SNOWFALL TOTALS OF 1 TO 3 FEET
WILL BE POSSIBLE...WITH LOCALLY HIGHER AMOUNTS. ADDITIONALLY...
STRONG WINDS ARE EXPECTED ACROSS THE ENTIRE REGION GIVEN THE
STRONG PRESSURE GRADIENT BETWEEN THE HIGH PRESSURE OVER THE
ROCKIES AND THIS LOW PRESSURE SYSTEM.
THE NEXT STORM SUMMARY WILL BE ISSUED BY THE HYDROMETEOROLOGICAL
PREDICTION CENTER AT 700 PM PST. PLEASE REFER TO YOUR LOCAL
NATIONAL WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS
EVENT.
MONARSKI
Last Updated: 401 PM EST FRI NOV 30 2012