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
100 PM PST TUE JAN 19 2010
 
...PARADE OF PACIFIC SYSTEMS TO MOVE THROUGH THE SOUTHWESTERN
UNITED STATES OVER THE NEXT SEVERAL DAYS...
 
WINTER STORM WARNINGS ARE IN EFFECT FOR THE HIGHER ELEVATIONS OF
BOTH NORTHERN CALIFORNIA AND A SMALL PART OF SOUTHERN CALIFORNIA
AND THE SIERRA MOUNTAIN RANGE...AND ALSO FOR SOME OF THE
MOUNTAINOUS AREAS OF THE FOUR CORNERS REGION.
 
HIGH WIND WARNINGS ARE IN EFFECT FOR THE OREGON COASTAL AREAS AND
EXTREME SOUTHWEST WASHINGTON STATE.
 
FLASH FLOOD WATCHES AND COASTAL FLOOD ADVISORIES ARE IN EFFECT FOR
COASTAL AREAS OF SOUTHERN CALIFORNIA.
 
FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV

AT 100 PM PST...A LOW PRESSURE CENTER WITH A CENTRAL PRESSURE OF
966 MB...28.53 INCHES...WAS LOCATED WELL OFFSHORE THE PACIFIC
NORTHWEST.  A SECOND SYSTEM MOVING TO ITS SOUTH WILL SWEEP A COLD
FRONT AND OCCLUDED FRONT THROUGH CALIFORNIA AND INTO NEVADA DURING
THE DAY TODAY AND INTO THIS EVENING BRINGING ANOTHER ROUND OF
HEAVY PRECIPITATION. NATIONAL WEATHER SERVICE DOPPLER RADARS AND
SURFACE OBSERVATIONS INDICATED MODERATE TO HEAVY RAIN FALLING
ACROSS MOST OF CALIFORNIA WITH HEAVY SNOW REPORTED AT HIGHER
ELEVATIONS...AND BLIZZARD CONDITIONS ALONG THE SIERRA RIDGES. MUCH
LIGHTER RAIN AND HIGHER ELEVATION SNOW WAS STREAMING EASTWARD
THROUGH THE INTER MOUNTAIN WEST AND THE FRONT RANGE OF THE ROCKY
MOUNTAINS THAT IS ASSOCIATED WITH A WEAKENING FRONTAL ZONE.

...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 700 AM PST SUN JAN
17 THROUGH 100 PM PST MON JAN 19...

...ARIZONA...
SUNRISE MOUNTAIN                     12.0                     
MOUNTAINAIRE                         11.0                     
BELLEMONT                             9.8                     
FLAGSTAFF                             9.4                     
WILLIAMS                              7.0                     

...CALIFORNIA...
KIRKWOOD                             34.0                     
BOREAL                               30.0                     
SODA SPRINGS                         30.0                     
WHITE WOLF                           20.0                     
KINGVALE                             19.0                     
SUGAR BOWL                           19.0                     
MAMMOTH LAKES                        12.0                     
ASPENDELL                            11.0                     
CISCO 5 ENE                           7.0                     
ALPINE MEADOWS 3 ENE                  6.0                     

...NEVADA...
JARBIDGE 9 E                         13.0                     
GILLMAN SPRINGS 6 WNW                11.0                     
INCLINE VILLAGE 1 NE                 10.0                     
LAMOILLE 9 SE                        10.0                     
MT. CHARLESTON                       10.0                     
DAGGET PASS                           9.0                     
GARDNERVILLE 5 WSW                    4.3                     
CARSON CITY                           3.0                     

...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 700 AM PST SUN JAN
17 THROUGH 100 PM PST MON JAN 19...

...ARIZONA...
GILBERT 3.8 NW                        0.82                     

...CALIFORNIA...
OPIDS CAMP                            4.99                     
OLD MAN MOUNTAIN                      4.96                     
WHITE LEDGE PEAK                      4.69                     
MATILIJA DAM                          4.64                     
ROSE VALLEY                           4.29                     
NORDHOFF RIDGE                        4.01                     
W FK HELIPORT                         4.01                     
CHILAO                                3.74                     
NORTH FORK MATILIJA                   3.70                     
MOUNT SHASTA                          3.10 FROM SL2            
OXNARD AIRPORT                        2.17                     
BURBANK-GLENDALE-PASADENA ARPT        1.94                     
SAN FRANCISCO DOWNTOWN                1.61                     

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

...CALIFORNIA...
WARD MOUNTAIN                          101 ALONG SIERRA CREST  
CAMPBELL 5 S                            75                     
BURLINGAME 4 WSW                        73                     
SAN FRANCISCO 1 N                       64 ON GOLDEN GATE BRIDGE 
OROVILLE                                63                     
REDDING                                 61                     
SAN BRUNO                               60                     

...OREGON...
MOUNT HEBO                              68                     
LINCOLN CITY                            62                     
FLORENCE                                60                     

...UTAH...
CARDIFF PEAK                            76                     
OGDEN PEAK                              69                     

...WASHINGTON...
HURRICANE RIDGE                         79                     
HOQUIAM                                 62                     
QUILLAYUTE                              61                     


A SERIES OF PACIFIC STORMS WILL CONTINUE TO APPROACH THE
CALIFORNIA COASTLINE THIS WEEK. THE MAIN SURFACE LOWS WILL TURN
NORTHWARD ALONG THE PACIFIC NORTHWEST COAST WHILE PUSHING THEIR
FRONTS THROUGH CALIFORNIA AND INTO THE GREAT BASIN. BY THE END OF
THE WEEK...WIDESPREAD STORM RAINFALL TOTALS OF 4 TO 8 INCHES ARE
EXPECTED ACROSS CALIFORNIA AND INTO ARIZONA...WITH LOCAL AMOUNTS
OF UP TO 15 INCHES POSSIBLE ALONG THE SOUTHERN CALIFORNIA COASTAL
RANGES AND MOGOLLON RIM OF ARIZONA. SNOWFALL TOTALS WILL EASILY BE
SEVERAL FEET ALONG THE SIERRA NEVADA MOUNTAINS...AND 6 TO 12
INCHES FARTHER EAST OVER THE HIGHER ELEVATIONS OF SOUTHERN NEVADA
AND UTAH. STRONG AND GUSTY WINDS WILL IMPACT CALIFORNIA AS THE
STORM SYSTEMS MOVE ASHORE.

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.

HAMRICK




Last Updated: 354 PM EST TUE JAN 19 2010