THE HYDROMETEOROLOGICAL PREDICTION CENTER

CAMP SPRINGS, MD


STORM SUMMARY MESSAGE



STORM SUMMARY NUMBER 6 FOR MAJOR WINTER STORM
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
700 AM PST TUE FEB 28 2006

...PRECIPITATION SPREADING EASTWARD ACROSS THE GREAT BASIN WITH
HEAVY RAINFALL AND MOUNTAIN SNOWS DIMINISHING ACROSS CALIFORNIA
TODAY...

AT 700 AM PST...AN INTENSIFYING STORM SYSTEM RESPONSIBLE FOR HEAVY
PRECIPITATION ACROSS PORTIONS OF CALIFORNIA AND THE PACIFIC
NORTHWEST WAS LOCATED NEAR 46.4N 118.8W...WHICH IS ABOUT 20 MILES
EAST-NORTHEAST OF PASCO WASHINGTON. THE HEAVY PRECIPITATION
ASSOCIATED WITH THIS SYSTEM IS EXPECTED TO BEGIN TAPERING OFF
DURING THE DAY AS THE TRAILING COLD FRONT CONTINUES TO PUSH ACROSS
THE GREAT BASIN AND SOUTHERN CALIFORNIA.   OVER THE NEXT
24-HOURS...AN ADDITIONAL 1 TO 2 INCHES CAN BE EXPECTED ACROSS
PORTIONS OF THE CASCADES AND THE SIERRA-NEVADA MOUNTAINS...WITH
LESS THAN AN INCH OF ADDITIONAL ACCUMULATION EXPECTED ACROSS THE
COASTAL RANGES OF WASHINGTON...OREGON AND CALIFORNIA.  AS THE AREA
OF SURFACE LOW PRESSURE TRACKS EASTWARD DURING THE DAY...AND THE
ASSOCIATED COLD FRONT MOVES FARTHER INLAND...THE FOCUS FOR
PRECIPITATION WILL GRADUALLY SHIFT EASTWARD THROUGH THE GREAT
BASIN AND INTO THE ROCKIES WHERE SIGNIFICANTLY LESS PRECIPITATION
IS EXPECTED.  A RETURN OF HEAVY PRECIPITATION TO THE PACIFIC
NORTHWEST AND NORTHERN CALIFORNIA IS EXPECTED BY LATE WEDNESDAY
INTO EARLY THURSDAY AS A SECOND SYSTEM BEGINS TO MOVE INLAND. 
THAT SAID...A WINTER STORM WATCH IS IN EFFECT FOR THE
SHASTA-SISKIYOU REGION OF THE NORTHERN CALIFORNIA.

FLASH FLOOD WATCHES AND FLOOD WARNINGS ARE CURRENTLY IN EFFECT
ACROSS LARGE PORTIONS OF CALIFORNIA AND A SECTION OF NORTHWESTERN
NEVADA. WINTER STORM  WARNINGS ARE ALSO IN EFFECT FOR THE
SIERRA-NEVADA...THE TETONS IN NORTHEAST IDAHO AND THE WASATCH. A
HEAVY SNOW WARNING IS IN EFFECT FOR THE SAWTOOTH MOUNTAINS IN
IDAHO. SNOW ADVISORIES ARE IN EFFECT FOR PORTIONS OF THE CASCADES
FROM NORTHERN OREGON INTO SOUTHERN WASHINGTON AND THE TETONS AND
GROS VENTRE MOUNTAINS OF WYOMING.  HIGH WIND WARNINGS AND WIND
ADVISORIES ARE IN EFFECT FOR PORTIONS OF CALIFORNIA...THE NORTHERN
AND CENTRAL GREAT BASIN.  SMALL CRAFT ADVISORIES REMAIN IN EFFECT
FOR A LARGE PORTION OF THE CALIFORNIA COAST...WITH GALE WARNINGS
POSTED FOR THE OREGON COAST.

...SELECTED 48 HOUR PRECIPITATION AMOUNTS IN INCHES THROUGH 5 AM
PST TUESDAY...

OREGON...

ELK VALLEY.............2.88

CALIFORNIA...

BUCKS LAKE.............8.68
VENADO.................7.16
HONEYDEW...............6.96
THREE PEAKS............6.75
NORDHOFF RIDGE.........6.65...THROUGH 4AM
BRUSH CREEK............6.40
HUYSINK................7.60
YORKVILLE..............5.80
SISAR PEAK.............5.75...THROUGH 4AM
SHASTA DAM.............5.44
BLUE CANYON............5.30
BEN LOMOND.............4.61
SAN MARCOS PASS........4.53...THROUGH 4AM
TANBARK................4.47...THROUGH 4AM
LOS PRIETOS............4.19...THROUGH 4AM
MONTECITO..............3.89...THROUGH 4AM
DEL VALLE..............3.18...THROUGH 4AM 
BEVERLY HILLS..........2.41...THROUGH 4AM
DOWNTOWN LOS ANGELES...1.83...THROUGH 4AM
SAN FRANCISCO..........1.51
SACRAMENTO.............1.12
OAKLAND................1.02

THE NEXT STORM SUMMARY WILL BE ISSUED BY THE HYDROMETEOROLOGICAL
PREDICTION CENTER AT 1PM PST TUESDAY. PLEASE REFER TO YOUR LOCAL
NATIONAL WEATHER SERVICE OFFICE FOR DETAILS ON THIS
STORM...INCLUDING ALL WARNINGS...WATCHES...AND ADVISORIES.

PEREIRA






Last Updated: 948 AM EST TUE FEB 28 2006