HAZARDOUS WEATHER OUTLOOK
Issue Date: 404 AM PST SAT DEC 5 2009
Expiration: 500 AM PST SUN DEC 06 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CA.
.DAY ONE...TODAY AND TONIGHT
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
A STRONG CANADIAN COLD FRONT WILL USHER IN THE COLDEST AIR OF THE
SEASON SO FAR SUNDAY NIGHT INTO MONDAY. LOWERING SNOW LEVELS ARE
EXPECTED RANGING FROM 500 FEET OVER THE NORTH BAY COUNTIES TO 1500
FEET OVER THE CENTRAL COAST. AREAS OF SUB-FREEZING TEMPERATURES
ARE POSSIBLE MONDAY NIGHT.
HEAVY RAIN...WIND AND HIGH SURF ARRIVES WEDNESDAY AND THURSDAY.
THERE IS STILL A FAIR AMOUNT OF UNCERTAINTY SURROUNDING THE NATURE
OF THIS WEATHER SYSTEM BUT IT BEARS CLOSE WATCHING.
.SPOTTER INFORMATION STATEMENT...
WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS PER STANDARD OPERATING PROCEDURES.
SPECIAL WEATHER STATEMENT
Issue Date: 351 AM PST SAT DEC 5 2009
Expiration: 600 PM PST SAT DEC 05 2009
...COLDER WEATHER ARRIVES SUNDAY NIGHT AND MONDAY WITH LOWERING SNOW
LEVELS...
...WET AND WARMER WEATHER EXPECTED DURING THE MIDDLE AND END OF
NEXT WEEK...
A STRONG CANADIAN COLD FRONT WILL BRING THE COLDEST AIR OF THE
SEASON SO FAR TO THE BAY AREA AND CENTRAL COAST SUNDAY NIGHT INTO
MONDAY. ALTHOUGH INITIALLY DRY THE AIRMASS WILL BECOME UNSTABLE
AND CAUSE SHOWERS TO DEVELOP ALONG WITH LOWERING SNOW LEVELS
MONDAY. SNOW LEVELS WILL RANGE FROM 500 FEET OVER THE NORTH BAY TO
1500 FEET OVER THE CENTRAL COAST. LIGHT SNOW ACCUMULATIONS ARE
POSSIBLE. OTHERWISE RAIN SHOWERS WILL DEVELOP WITH THE POSSIBILITY
OF A FEW ISOLATED THUNDERSHOWERS. IF SNOW ACCUMULATIONS IN THE
HILLS AND MOUNTAINS BECOME SOMEWHAT GREATER THAN EXPECTED THEN A
WINTER WEATHER ADVISORY MAY BE NEEDED MONDAY.
PLANS FOR EARLY NEXT WEEK SHOULD INCLUDE PROVIDING PROPER SHELTER
FOR ANYONE OR ANYTHING SENSITIVE TO COLD...INCLUDING PETS.
A STRONGER STORM WILL ARRIVE WEDNESDAY WITH THE POSSIBILITY OF HEAVY
RAIN AND GUSTY WINDS. STORMY WEATHER CONDITIONS COULD LAST INTO
THURSDAY.
ADDITIONALLY EXPECT LARGE WAVES NEAR THE COAST WEDNESDAY NIGHT AND
THURSDAY.
POTENTIAL IMPACTS FROM THESE STORMS INCLUDE:
* URBAN AND SMALL STREAM FLOODING ALONG WITH POSSIBLE FLASH
FLOODING.
* HIGH WINDS THAT CAN DOWN TREES AND POWER LINES PRODUCING POWER OUTAGES.
* HAZARDOUS DRIVING CONDITIONS DUE TO VERY SLIPPERY ROAD CONDITIONS.
* DANGEROUS NEAR SHORE CONDITIONS DUE TO HIGH SURF FROM LARGE WAVES.
THIS IS A POTENTIALLY SERIOUS DEVELOPING WEATHER SITUATION. PLEASE
LISTEN TO NOAA WEATHER RADIO OR VISIT OUR WEBSITE AT:
HTTP://WEATHER.GOV/SANFRANCISCO FOR THE LATEST WEATHER UPDATES ON
THIS STORM SYSTEM.
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