THE WEATHER PREDICTION CENTER
COLLEGE PARK, MD
STORM SUMMARY MESSAGE
STORM SUMMARY NUMBER 06 FOR PACIFIC NORTHWEST AND NORTHERN
INTERMOUNTAIN WEST HEAVY RAINFALL
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
700 AM PST WED DEC 09 2015
...MODERATE TO HEAVY RAIN FALLING ACROSS THE PACIFIC NORTHWEST AND
INTO THE INTERMOUNTAIN WEST...
FLOOD WATCHES...WARNINGS...AND FLOOD ADVISORIES ARE IN EFFECT FOR
PORTIONS OF THE PACIFIC NORTHWEST AS WELL AS PARTS OF NORTHERN
CALIFORNIA AND NORTHERN IDAHO.
WINTER STORM WATCHES AND WARNINGS ARE IN EFFECT FOR THE SIERRA
NEVADA RANGE IN CALIFORNIA AND THE HIGHER TERRAIN OF THE
INTERMOUNTAIN WEST.
HIGH WIND WATCHES...WARNINGS...AND WIND ADVISORIES ARE IN EFFECT
FOR THE HIGHER TERRAIN OF THE NORTHWEST...GREAT BASIN...AND
NORTHERN ROCKIES. THERE ARE ALSO WIND ADVISORIES IN EFFECT FOR
PORTIONS OF THE NORTHERN HIGH PLAINS.
FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV
AT 600 AM PST...A CLASSIC ATMOSPHERIC RIVER EVENT WAS ONGOING
ACROSS THE PACIFIC NORTHWEST WITH SUBTROPICAL MOISTURE STREAMING
INTO THE REGION COMBINED WITH A SERIES OF UPPER LEVEL
DISTURBANCES. A COLD FRONT HAD PUSHED ONSHORE THIS MORNING AND WAS
LOCATED ACROSS CENTRAL WASHINGTON AND OREGON AND OFF THE THE
NORTHWEST CALIFORNIA COAST. NATIONAL WEATHER SERVICE DOPPLER
RADARS AND SURFACE OBSERVATIONS SHOWED AND AREA OF MODERATE TO
HEAVY RAIN FALLING NEAR THE COLD FRONT ACROSS EASTERN WASHINGTON
STATE AND SOUTHWEST OREGON. LIGHT TO MODERATE RAIN...ALONG WITH
SNOW IN HIGHER ELEVATIONS...WAS ALSO FALLING ELSEWHERE ACROSS
PORTIONS OF THE PACIFIC NORTHWEST AND NORTHERN INTERMOUNTAIN WEST.
...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 300 PM PST MON DEC
07 THROUGH 600 AM PST WED DEC 09...
...CALIFORNIA...
CRESCENT CITY/MC NAMARA FIELD 1.90
...IDAHO...
BEAR MOUNTAIN 5.80
SCHWEITZER BASIN 4.50
MULLAN PASS 3.87
HIDDEN LAKE 3.40
COOL CREEK 3.10
LOOKOUT 3.10
COLBURN 2 ESE 3.01
SHANGHI SUMMIT 2.80
CRATER MEADOWS 2.50
HEMLOCK BUTTE 1.80
PIERCE 1.73
LOLO PASS 1.70
LOWMAN 9.6 ENE 1.57
GARDEN VALLEY 2.7 NW 1.56
OROFINO 3 NE 1.16
...MONTANA...
TWIN LAKES 2.80
HOODOO BASIN 2.60
TWELVEMILE CREEK 2.50
NOISY BASIN 1.90
...OREGON...
SADDLE MOUNTAIN 5.90
SOUTH FORK 5.90
HEBO 4 ESE 5.75
WILKINSON RIDGE 5.42
RED HILL 5.40
RYE MOUNTAIN 5.09
LITTLE MEADOWS 5.00
CANNIBAL MOUNTAIN 4.96
NEHALEM RIVER NR FOSS 4.91
LOG CREEK 4.90
SEINE CREEK 4.80
ASTORIA 3.76
BROOKINGS 3.56
WFO PORTLAND ROOFTOP WEATHER 3.35
PORTLAND INTL AIRPORT 3.22
GOLD BEACH 2.27
...WASHINGTON...
TELMA 3 W 5.47
SHELTON/SANDERSON FIELD ARPT 4.89
TRINITY SNOTEL 4.70
HUCKLEBERRY RIDGE 4.31
JUNE LAKE 4.30
SHEEP CANYON 4.20
GLENOMA WSW 4.04
OLYMPIA 3.77
PARK CREEK RIDGE 3.70
SWIFT CREEK 3.60
HOQUIAM/BOWERMAN AIRPORT 3.53
ROCK CREEK 3.47
ABERNATHY MTN 3.39
SEATTLE/TACOMA INTL ARPT 3.33
LOST LAKE 3.10
MOSQUITO RIDGE 3.10
CALAMITY 3.00
LOOKOUT 3.00
ABERDEEN 1 ENE 2.94
VANCOUVER 2.93
...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 300 PM PST MON DEC
07 THROUGH 600 AM PST WED DEC 09...
...IDAHO...
KETCHUM 22 NW 15.2
ISLAND PARK 8 NW 13.2
STANLEY 16 NW 10.4
FAIRFIELD 10 NNW 8.3
HAILEY 21 ENE 7.1
ATLANTA 12 NW 6.8
BURLEY 18 SE 5.8
ARCO 33 WNW 4.6
MACKAY 32 NE 4.1
CHALLIS 27 NNE 3.2
LAVA HOT SPRINGS 10 SSE 2.4
PRESTON 20 NE 2.3
...MONTANA...
ISLAND PARK 16 NE 19.8
WEST YELLOWSTONE 6 S 10.4
...WASHINGTON...
WINTHROP 6.8 NNW 3.7
...WYOMING...
DRIGGS 32 NNE 9.0
PINEDALE 25.9 NNW 5.5
...SELECTED PEAK WIND GUSTS IN MILES PER HOUR EARLIER IN THE
EVENT...
...COLORADO...
BERTHOUD PASS 84
GOLD HILL 2 S 82
...IDAHO...
COLBURN 5 W 66
HUETTER 2 NNE 52
...MONTANA...
EAST GLACIER PARK 8 SE 85
MCALLISTER 5 NNE 63
CUT BANK SIRPORT 58
GREYCLIFF 13 SSW 58
...OREGON...
MOUNT HOOD 1 SE 125
MARYS PEAK 97
PHILOATH 15 WSW 92
OCEANSIDE 88
HEBO 4 E 85
FLORENCE 13 N 80
DALLAS 10 WSW 79
SEA LION CAVES 75
PACIFIC CITY 71
TIDEWATER 69
YACHATS 63
LINCOLN BEACH 1 N 61
RIDGEFIELD 3 SSW 61
WALDPORT 60
NEWPORT 2 S 59
SOUTH BEACH 59
SCHOLLS 3 WSW 56
TILLAMOOK AIRPORT 45
...WASHINGTON...
NORTH BONNEVILLE 10 NW 92
CASTLE ROCK 15 WNW 83
NASELLE 3 NNE 74
COOK 2 WNW 73
MISSION RIDGE SKI AREA 73
FERNDALE 62
MEGLER 1 NW 59
...WYOMING...
SUNLIGHT BASIN 8 E 96
CLARK 5 WNW 86
BUFORD 7 NE 83
CHEYENNE 10 WSW 75
WHEATLAND 9 S 71
WHITAKER 67
ARLINGTON 7 ESE 66
ELK MOUNTAIN 7 NW 60
GLENROCK 2 SSE 60
A SERIES OF UPPER LEVEL DISTURBANCES WILL MOVE ACROSS THE PACIFIC
NORTHWEST AND THE INTERMOUNTAIN WEST OVER THE NEXT FEW DAYS AS
MOISTURE CONTINUES TO FEED INTO THE REGION. DURING THE DAY
TODAY...THE HEAVIEST OF THE RAINFALL SHOULD BEGIN TO SHIFT
SOUTHWARD AND INTO NORTHWEST CALIFORNIA. AS MUCH AS 3 TO 8 INCHES
OF RAIN...WITH LOCALLY HIGHER AMOUNTS...MAY BE POSSIBLE ACROSS
NORTHWEST COASTAL CALIFORNIA AND SOUTHWEST OREGON. RAIN WILL ALSO
CONTINUE FARTHER NORTH ACROSS THE PACIFIC NORTHWEST WHERE ANOTHER
2 TO 5 INCHES OF RAIN MAY BE POSSIBLE THROUGH THE REST OF THE
WEEK...ESPECIALLY IN AREAS WITH FAVORABLE UPSLOPE. ALL OF THIS
HEAVY RAINFALL COULD LEAD TO SIGNIFICANT FLOODING ALONG MUCH OF
THE NORTHWEST COAST. IN ADDITION TO THE RAINFALL...HEAVY SNOWFALL
CAN BE EXPECTED ACROSS THE NORTHERN WASHINGTON CASCADES...THE
HIGHER ELEVATIONS OF THE NORTHERN INTERMOUNTAIN WEST...AS WELL AS
THE SIERRA NEVADA RANGE OF CALIFORNIA.
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: 1003 AM EST WED DEC 09 2015