HAZARDOUS WEATHER OUTLOOK
Issue Date: 422 AM PST SUN DEC 6 2009
Expiration: 500 AM PST MON DEC 07 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR SAN FRANCISCO BAY AREA AND
MONTEREY BAY AREA.
.DAY ONE...SUNDAY AND SUNDAY NIGHT
THE COLDEST AIR OF THE SEASON SO FAR IS EXPECTED. SNOW LEVELS WILL
LOWER TO 500 FEET NORTH BAY TO 1500 FEET CENTRAL COAST. AREAS OF
FROST ARE POSSIBLE LATE MONDAY NIGHT INTO TUESDAY MORNING.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY
COLDER WITH RAIN AND SNOW SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS MONDAY. AREAS OF FROST ARE POSSIBLE LATE MONDAY NIGHT
INTO TUESDAY MORNING.
.SPOTTER INFORMATION STATEMENT...
WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS PER STANDARD OPERATING PROCEDURES.
SPECIAL WEATHER STATEMENT
Issue Date: 533 PM PST SAT DEC 5 2009
Expiration: 600 AM PST SUN DEC 06 2009
...A COLD WEATHER SYSTEM 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
INCREASINGLY MOIST AND UNSTABLE. SHOWERS WILL DEVELOP ON SUNDAY
NIGHT...AND CONTINUE INTO MONDAY. SNOW LEVELS WILL DROP SUNDAY
NIGHT INTO MONDAY AS A VERY COLD AIRMASS SETTLES OVER THE AREA. BY
MONDAY MORNING SNOW LEVELS WILL RANGE FROM 1000 FEET OVER THE NORTH
BAY TO 3000 FEET OVER THE CENTRAL COAST. SNOW LEVELS COULD DROP AS
LOW AS 500 FEET IN HEAVIER SHOWERS. SNOW ACCUMULATIONS OF 1 TO 2
INCHES ARE POSSIBLE ABOVE 1500 FEET. AT LOWER ELEVATIONS...COLD
RAIN SHOWERS ARE EXPECTED. IF THE WEATHER SYSTEM PICKS UP MORE
MOISTURE THAN ANTICIPATED...THEN SNOW ACCUMULATIONS IN THE HILLS
COULD BE GREATER.
RAIN AND SNOW SHOWERS WILL TAPER OFF FROM NORTH TO SOUTH LATE
MONDAY. COLD CONDITIONS ARE EXPECTED MONDAY NIGHT...AND
WIDESPREAD FREEZING TEMPERATURES ARE POSSIBLE IN THE
VALLEYS IF CLOUDS CLEAR EARLY THAT NIGHT. A FREEZE WATCH IS IN
EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY MORNING FOR THE
VALLEYS OF THE SAN FRANCISCO AND MONTEREY BAY AREAS.
A WARMER AND WETTER WEATHER SYSTEM IS FORECAST TO ARRIVE FROM THE
WEST BY LATE WEDNESDAY OR WEDNESDAY NIGHT. THE MIDWEEK WEATHER
SYSTEM...AND ANOTHER TO FOLLOW LATE IN THE WEEK OR NEXT
WEEKEND...HAVE THE POTENTIAL TO PRODUCE HEAVY RAIN AND STRONG
GUSTY WINDS.
IN SUMMARY...AN ACTIVE WEATHER PATTERN OVER THE NEXT SEVEN DAYS
WILL CREATE POTENTIAL WEATHER HAZARDS INCLUDING SNOW ON HIGHER
ELEVATION ROADWAYS...FREEZING TEMPERATURES...POTENTIALLY HEAVY
RAINFALL...AND STRONG GUSTY WINDS. PLEASE LISTEN TO NOAA WEATHER
RADIO OR VISIT OUR WEBSITE AT: HTTP://WEATHER.GOV/SANFRANCISCO FOR
THE LATEST WEATHER UPDATES.
|
|
|
