THE HYDROMETEOROLOGICAL PREDICTION CENTER
CAMP SPRINGS, MD
STORM SUMMARY MESSAGE
STORM SUMMARY NUMBER 5 FOR WESTERN U.S. HEAVY PRECIPITATION EVENT
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
700 PM PST SUN DEC 19 2010
...MAJOR HEAVY RAIN AND MOUNTAIN SNOW EVENT CONTINUES FOR THE WEST
COAST AS A SERIES OF MOISTURE-LADEN PACIFIC STORMS MOVE ASHORE...
WINTER STORM WARNINGS AND WINTER WEATHER ADVISORIES ARE IN EFFECT
FOR MUCH OF INTERIOR OREGON...THE MOUNTAINOUS AREAS OF CENTRAL
AND NORTHERN CALIFORNIA...AND EXTENDING INTO NORTHERN PARTS OF THE
INTER-MOUNTAIN WEST.
FLOOD AND FLASH FLOOD WATCHES...WARNINGS...AND ADVISORIES HAVE
BEEN ISSUED FOR MANY OF THE LOWER ELEVATIONS OF CENTRAL AND INTO
SOUTHERN CALIFORNIA.
FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV
AT 600 PM PST...NATIONAL WEATHER SERVICE DOPPLER RADARS AND
SURFACE OBSERVATIONS INDICATED A WIDESPREAD AREA OF MODERATE TO
HEAVY RAIN OVER MUCH OF SOUTHERN CALIFORNIA. PATCHY AREAS OF
MODERATE PRECIPITATION WERE NOTED THROUGH THE REST OF CALIFORNIA
AND THROUGHOUT THE REST OF THE INTER-MOUNTAIN WEST. WIDESPREAD
HEAVY SNOW WAS REPORTED IN THE HIGHER ELEVATIONS OF THE SIERRA
NEVADA AND OTHER NEARBY MOUNTAIN RANGES...WITH BLIZZARD CONDITIONS
ALONG MOUNTAIN CRESTS.
...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 700 PM PST FRI DEC
17 THROUGH 700 PM PST SUN DEC 19...
...CALIFORNIA...
MAMMOTH LAKES 3 WSW 108.0
ALPINE MEADOWS 53.0
KIRKWOOD SKI AREA 52.0
JUNE LAKE 48.0
TRUCKEE 2 W 42.0
BLACKCAP BASIN 33.0
CHARLOTTE LAKE 30.0
CHAGOOPA PLATEAU 29.0
GREEN MOUNTAIN 28.0
OSTRANDER LAKE 27.0
AGNEW PASS 26.0
TENAYA LAKE 25.0
SQUAW VALLEY 24.0
...COLORADO...
LEADVILLE 2 NE 4.7
...IDAHO...
HAILEY 7.0
...NEVADA...
MOUNT ROSE SKI AREA 50.0
INCLINE VILLAGE 1 NE 21.0
HEAVENLY VALLEY 20.0
GARDNERVILLE 2 NW 10.3
CARSON CITY 5 S 10.0
VIRGINIA CITY 5 E 8.0
RENO 5.0
...OREGON...
THREE RIVERS 1 N 12.0
WSW CAMP SHERMAN 9.0
HOOD RIVER 8.0
SUNRIVER 8.0
TIMBERLINE LODGE 8.0
WILSON RIVER SUMMIT 8.0
TUMALO 9 NW 7.0
WILLAMEETTE PASS 7.0
...UTAH...
PROVO CANYON 24.0
SNOWBASIN MID BOWL 19.0
ALTA 17.0
PARK CITY JUNIPER PEAK 17.0
BRIGHTON CREST 14.0
...WASHINGTON...
CARSON 7.0
...WYOMING...
BATTLE LAKE 2 E 16.5
NORTH FRENCH CREEK 15.0
ROB ROY RESERVOIR 2 NE 13.5
RYAN PARK 1 SSE 13.5
BROOKLYN LAKE 12.0
SAND LAKE 10.5
HOG PARK RESERVOIR 4 NW 9.6
...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 700 PM PST FRI DEC
17 THROUGH 700 PM PST SUN DEC 19...
...ARIZONA...
BLACK ROCK 1.33
...CALIFORNIA...
LAKE KAWEAH 10.95
BEARTRAP MEADOW 10.18
NATURE POINT 9.72
JERSEYDALE 8.00
GOAT MOUNTAIN 7.40
BLUE CANYON 7.29
SAN LUIS OBISPO CO ARPT 6.79
TRIMMER 6.68
WOFFORD HEIGHTS 6.66
SANTA MARIA PUBLIC APT 5.06
OXNARD AIRPORT 4.83
SANTA MONICA MUNI ARPT 4.10
CAMARILLO AIRPORT 3.99
VANDENBERG AFB/LOMPOC 3.83
SANTA BARBARA MUNI ARPT 3.64
LOS GATOS 6.1 S 3.41
LOS ANGELES INTL ARPT 3.38
HAWTHORNE MUNI ARPT 3.15
VISALIA MUNI ARPT 3.06
LONG BEACH AIRPORT 2.93
VAN NUYS AIRPORT 2.59
OAK CREEK 2.49
LINDSAY 0.5 N 2.34
OAKLAND 2.20
SAN FRANCISCO 1.98
...OREGON...
SEXTON SUMMIT 3.10
...SELECTED PEAK WIND GUSTS IN MILES PER HOUR EARLIER IN THE
EVENT...
...CALIFORNIA...
ALPINE MEADOWS SUMMIT 152
SOUTH LAKE TAHOE 68
TRUCKEE 63
BLUE CANYON 44
MATHER AFB/SACRAMENTO 44
SANBERG 44
RED BLUFF MUNI ARPT 43
SAN FRANCISCO INTL ARPT 41
...IDAHO...
CALDWELL 41
...NEVADA...
VIRGINIA PEAK 122
SLIDE MOUNTAIN 49
FALLON 41
...UTAH...
OGDEN PEAK 77
RED SPUR 57
OTTER PEAK 55
...WYOMING...
RAWLINS MUNI ARPT 40
A SERIES OF MOIST PACIFIC SYSTEMS WILL CONTINUE TO INUNDATE THE
WESTERN U.S. INTO EARLY THIS WEEK AS A PLUME OF DEEP SUBTROPICAL
MOISTURE CONTINUES TO STREAM INTO THE REGION FROM THE TROPICS.
ADDITIONAL RAINFALL AMOUNTS OF 3 TO 6 INCHES...WITH LOCALIZED
AMOUNTS AS HIGH AS 10 INCHES...CAN BE EXPECTED THROUGH WEDNESDAY
EVENING...ESPECIALLY OVER THE MOUNTAINS OF SOUTHERN CALIFORNIA.
ADDITIONAL SNOWFALL AMOUNTS OF 2 TO 4 FEET WILL BE POSSIBLE AT
ELEVATIONS ABOVE 6000 FEET...WITH 4 TO 8 FEET OF SNOWFALL POSSIBLE
AT ELEVATIONS ABOVE 8000 FEET...IN THE SOUTHERN SIERRA NEVADA
RANGE.
THE NEXT STORM SUMMARY WILL BE ISSUED BY THE HYDROMETEOROLOGICAL
PREDICTION CENTER AT 100 AM PST. PLEASE REFER TO YOUR LOCAL
NATIONAL WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS
EVENT.
HAMRICK
Last Updated: 951 PM EST SUN DEC 19 2010