THE HYDROMETEOROLOGICAL PREDICTION CENTER

CAMP SPRINGS, MD


STORM SUMMARY MESSAGE



STORM SUMMARY NUMBER 01 FOR WESTERN U.S. HEAVY PRECIPITATION EVENT
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
100 PM PST MON JAN 18 2010
 
...A WET WORK WEEK IS IN STORE FOR THE WESTERN U.S....
 
FLASH FLOOD WATCHES AND FLOOD ADVISORIES HAVE BEEN ISSUED FOR
PORTIONS OF THE CALIFORNIA COAST. HIGH WIND WARNINGS AND WIND
ADVISORIES ARE ALSO IN EFFECT ACROSS CALIFORNIA.
 
WINTER STORM WATCHES...WARNINGS...AND WINTER WEATHER ADVISORIES
ARE IN EFFECT ALONG THE SIERRA NEVADA MOUNTAINS AND ACROSS
PORTIONS OF THE CENTRAL GREAT BASIN.
 
FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV

AT 1200 PM PST...A 968 MB...28.59 INCHES...LOW PRESSURE CENTER AND
OCCLUDED FRONT WERE LOCATED OFF THE CALIFORNIA COAST.  NATIONAL
WEATHER SERVICE DOPPLER RADARS AND SURFACE OBSERVATIONS INDICATED
MODERATE TO HEAVY RAIN WAS FALLING ALONG THE CALIFORNIA
COAST...FROM LOS ANGELES TO THE OREGON BORDER.  MODERATE SNOW WAS
REPORTED IN SOME OF THE HIGHER ELEVATIONS OF NORTHERN CALIFORNIA. 
ADDITIONALLY...SUSTAINED WINDS OF 30 TO 35 MPH WERE OBSERVED
ACROSS THE SOUTHERN COAST OF CALIFORNIA.

...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 400 PM PST SUN JAN
17 THROUGH 100 PM PST MON JAN 18...

...CALIFORNIA...
SODA SPRINGS 1.5 SSW                  8.0                     
CISCO 5 ENE                           7.0                     
KINGVALE 1.3 WSW                      7.0                     

...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 700 AM PST SUN JAN
17 THROUGH 100 PM PST MON JAN 18...

...CALIFORNIA...
VENADO                                3.64                     
HEALDSBURG 7.5 NW                     2.58                     
SAN MARCOS PASS                       2.57                     
NORDHOFF RIDGE                        2.55                     
CLOVERDALE 0.9 S                      2.45                     
GEYSERVILLE 10.6 WNW                  2.20                     
ST. HELENA                            2.04                     

...SELECTED PEAK WIND GUSTS IN MILES PER HOUR EARLIER IN THE
EVENT...

...CALIFORNIA...
LANCASTER 16 WSW                        78                     
MOUNT WILSON 7 NNE                      68                     
SAN FERNANDO 6 NNE                      65                     
CUYAMA 12 NNW                           60                     
PISMO BEACE 1 SSE                       60                     
HALF MOON BAY 1 SSW                     50                     


A SERIES OF LOW PRESSURE CENTERS WILL CONTINUE TO APPROACH THE
CALIFORNIA COASTLINE AND THEN PROGRESS NORTHWARD OFF THE PACIFIC
NORTHWEST COAST. BY THE END OF THE WORK WEEK...WIDESPREAD RAINFALL
TOTALS OF 6 TO 10 INCHES ARE EXPECTED ACROSS CALIFORNIA AND INTO
ARIZONA. LOCAL AMOUNTS OF UP TO 15 INCHES ARE POSSIBLE ALONG THE
SOUTHERN CALIFORNIA COASTLINE AND SNOWFALL TOTALS WILL BE MEASURED
IN FEET ALONG THE SIERRA NEVADA MOUNTAINS. STRONG AND GUSTY WINDS
WILL ALSO IMPACT THE AREA.

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.

GERHARDT




Last Updated: 359 PM EST MON JAN 18 2010