THE WEATHER PREDICTION CENTER
COLLEGE PARK, MD
STORM SUMMARY MESSAGE
STORM SUMMARY NUMBER 04 FOR WESTERN U.S. HEAVY RAIN AND SNOW EVENT
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
700 AM PST SUN JAN 08 2017
...RAIN AND MOUNTAIN SNOW IMPACTING NORTHERN AND CENTRAL
CALIFORNIA WITH SOME FREEZING RAIN AND SNOW FALLING ACROSS THE
PACIFIC NORTHWEST AND INTO THE GREAT BASIN...
FLOOD WATCHES AND WARNINGS ARE IN EFFECT ACROSS PORTIONS OF
NORTHERN CALIFORNIA...THE UPSLOPE REGIONS OF THE SIERRAS...AS WELL
AS SOUTHEAST OREGON.
AN ICE STORM WARNING IS IN EFFECT FOR NORTHWEST OREGON AND A SMALL
PORTION OF FAR NORTHEAST OREGON AND SOUTHEAST WASHINGTON.
WINTER STORM WARNINGS...WATCHES...AND WINTER WEATHER ADVISORIES
ARE IN EFFECT ACROSS MUCH OF THE PACIFIC NORTHWEST...AND THE
INTERMOUNTAIN WEST AND NORTHERN AND CENTRAL ROCKIES.
FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV
AT 600 AM PST...A LARGE UPPER LEVEL SYSTEM OFF THE PACIFIC
NORTHWEST COAST WAS ALLOWING FOR A CONTINUAL STREAM OF MOISTURE
DIRECTED INTO THE WEST COAST. A FRONTAL BOUNDARY WAS MOVING SLOWLY
EASTWARD THROUGH THE EAST PACIFIC OCEAN WHILE A STATIONARY
BOUNDARY WAS DRAPED FROM SOUTHWEST OREGON INTO THE GREAT BASIN.
NATIONAL WEATHER SERVICE DOPPLER RADARS AND SURFACE OBSERVATIONS
SHOWED MODERATE TO HEAVY RAIN FALLING ACROSS MUCH OF NORTHERN AND
CENTRAL CALIFORNIA WITH SNOW IN THE HIGHER ELEVATIONS OF THE
SIERRAS. FARTHER NORTH...LIGHT TO MODERATE FREEZING RAIN OR RAIN
WAS ALSO IMPACTING LOWER ELEVATIONS OF WESTERN OREGON AND
WASHINGTON. ACROSS THE INTERMOUNTAIN WEST AND GREAT BASIN...LIGHT
TO MODERATE SNOW WAS REPORTED ACROSS THE MOUNTAINS WITH SOME
FREEZING RAIN OR RAIN IN THE VALLEYS.
...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 400 PM PST FRI JAN
06 THROUGH 600 AM PST SUN JAN 08...
...CALIFORNIA...
SIMS 12.0
MOUNT SHASTA 3 SSE 11.0
SIMS 1 SSW 7.2
WEAVERVILLE 4 E 6.0
WEED 2 SSW 5.0
CARRVILLE 11 SSW 4.0
CLOVERDALE 2 ENE 3.0
YREKA 1 WNW 3.0
INDEPENDENCE 0.5
...IDAHO...
HARPER 8.0
EMMETT 6.0
MARSING 6.0
CALDWELL 5.0
FRUITLAND 5.0
HOMEDALE 5.0
STAR 5.0
VALE 5.0
BOISE 4.0
EAGLE 4.0
MOUNTAIN HOME 4.0
NAMPA 4.0
...OREGON...
SW BEND 9.0
CAMP SHERMAN 2 SSW 8.5
HARPER 8.0
SE BEND 7.0
SELMA 6.0
N MADRAS 5.0
REDMOND 1 WSW 5.0
VALE 5.0
EUGENE AIRPORT 4.5
WILDERVILLE 1 SE 4.0
...WASHINGTON...
BENGE 4.0
...SELECTED STORM TOTAL FREEZING RAIN ICE AMOUNTS IN INCHES FROM
400 PM PST FRI JAN 06 THROUGH 600 AM PST SUN JAN 08...
...CALIFORNIA...
BIG PINE 1 W 0.50
INDEPENDENCE 0.50
WEST BISHOP 5 WSW 0.25
...OREGON...
CRESWELL 1.00
EUGENE 5 WNW 0.75
COTTAGE GROVE 1 SSE 0.50
ROSEBURG 0.25
SUTHERLIN 1 WNW 0.10
...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 400 PM PST FRI JAN
06 THROUGH 600 AM PST SUN JAN 08...
...CALIFORNIA...
THREE PEAKS 5.58
MINING RIDGE 5.39
BLACK CONE 4.96
CARMEL VALLEY VILL 17 S 4.28
ANDERSON PEAK 4.13
MT. SAINT HELENA 4.13
LEXINGTON HILLS 3 E 3.98
CHALK PEAK 3.74
BARNABY RAWS 3.14
HAWKEYE RAWS 3.11
PETRIFIED FOREST 2.88
WOODACRE RAWS 2.88
MIDDLE PEAK RAWS 2.79
SANTA ROSA SONOMA CO ARPT 2.66
NAPA 6 ENE 1.54
SAN FRANCISCO DOWNTOWN 1.30
OAKLAND N RAWS 1.15
...OREGON...
HARBOR 1 WNW 1.15
...SELECTED PEAK WIND GUSTS IN MILES PER HOUR EARLIER IN THE
EVENT...
...MONTANA...
LIVINGSTON 3 ENE 58
CONTINUAL ONSHORE FLOW AND A SERIES OF PACIFIC FRONTAL SYSTEMS
WILL KEEP PRECIPITATION IN THE FORECAST ACROSS MUCH OF THE WESTERN
U.S. THROUGHOUT THE NEXT THREE DAYS. WITH ALL THIS HEAVY
RAINFALL...THE FLOOD AND FLASH FLOOD THREAT WILL CONTINUE WITH
ADDITIONAL RAINFALL OVER THE NEXT THREE DAYS IN EXCESS OF 10
INCHES POSSIBLE ACROSS NORTHERN CALIFORNIA. LESSER AMOUNTS OF 2 TO
5 INCHES...WITH LOCALLY HIGHER AMOUNTS...ARE POSSIBLE ACROSS
WESTERN WASHINGTON AND OREGON. IN THE TERRAIN OF THE WESTERN U.S.
OVER THE NEXT THREE DAYS...SIGNIFICANT SNOW ACCUMULATIONS ARE
EXPECTED WITH AS MUCH AS 3 TO 5 FEET POSSIBLE ACROSS THE SIERRAS
AND THE HIGHEST ELEVATIONS OF THE INTERMOUNTAIN WEST. ADDITIONAL
ICE ACCUMULATIONS OF UP TO A QUARTER OF AN INCH...OR MORE...IS
POSSIBLE FOR PORTIONS OF WESTERN WASHINGTON AND OREGON
VALLEYS...WITH LESSER AMOUNTS FARTHER EAST IN EASTERN OREGON AND
THE GREAT BASIN. HEAVY RAINFALL AND MOUNTAIN SNOW...ESPECIALLY
ACROSS CALIFORNIA...MAY CONTINUE THROUGH MUCH OF NEXT WEEK AS WELL
WITH STORM TOTAL RAIN ACCUMULATIONS EXCEEDING 15 INCHES POSSIBLE.
THE NEXT STORM SUMMARY WILL BE ISSUED BY THE WEATHER PREDICTION
CENTER AT 100 PM PST. PLEASE REFER TO YOUR LOCAL NATIONAL WEATHER
SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS EVENT.
SANTORELLI
Last Updated: 1007 AM EST SUN JAN 08 2017