SPECIAL WEATHER STATEMENT
Issue Date: 323 PM PST SAT DEC 19 2009
Expiration: 330 AM PST SUN DEC 20 2009
...COOL PACIFIC LOW PRESSURE SYSTEM TO AFFECT CENTRAL CALIFORNIA
MONDAY EVENING THROUGH TUESDAY...
THE RIDGE OF HIGH PRESSURE OVER OUR AREA WILL GIVE WAY TO A COOL
LOW PRESSURE SYSTEM MOVING FROM THE GULF OF ALASKA ON MONDAY
NIGHT INTO TUESDAY. THIS SYSTEM IS EXPECTED TO BRING LIGHT TO
MODERATE PRECIPITATION OVER THE AREA. AT THIS TIME PRECIPITATION
AMOUNTS COULD BE AS MUCH AS AROUND A QUARTER INCH IN THE CENTRAL
SAN JOAQUIN VALLEY WITH THE SOUTH END AND WEST SIDE OF THE VALLEY
SEEING UP TO AROUND A TENTH OF AN INCH DUE TO RAIN SHADOWING FROM
THE COASTAL RANGE. HIGHEST AMOUNTS OF PRECIPITATION WILL LIKELY BE
LIMITED TO THE FOOTHILLS AND SIERRA NEVADA. SNOW AMOUNTS IN THE
HIGHER ELEVATIONS OF THE SIERRA NEVADA ARE EXPECTED TO AROUND 4 TO
7 INCHES WITH LOCALLY HIGHER AMOUNTS POSSIBLE DURING MONDAY NIGHT
INTO TUESDAY.
SNOW LEVELS SHOULD BE AROUND 6000 FEET ON MONDAY EVENING THEN LOWER
TO AROUND 4000 FEET BY TUESDAY MORNING. 4000 FOOT SNOW LEVELS ARE
EXPECTED TO BE MAINLY IN THE SIERRA NEVADA FROM YOSEMITE SOUTH TO
KINGS CANYON ALONG WITH MOST OF THE PRECIPITATION...OTHERWISE SNOW
LEVELS WILL LIKELY BE AROUND 5000 FEET ELSEWHERE BY TUESDAY
MORNING. THE BULK OF THE PRECIPITATION COULD OCCUR FROM MONDAY EVENING
THROUGH TUESDAY MORNING WITH LINGERING SHOWERS IN THE AREA THROUGH
TUESDAY EVENING. IN THE MOUNTAINS AND DESERTS...BREEZY CONDITIONS
ARE EXPECTED AT THIS TIME WITH NORTHWEST WINDS AROUND 15 TO 25 MPH
WITH LOCAL GUSTS TO AROUND 40 MPH IN THE WIND PRONE AREAS SUCH AS
THE PASSES AND CANYONS AS THIS SYSTEM EXITS ON TUESDAY.
LOCAL OFFICIALS AND THOSE WITH TRAVEL PLANS DURING THE NEXT 7
DAYS SHOULD MONITOR LATER FORECASTS AND STATEMENTS FROM THE
NATIONAL WEATHER SERVICE.
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