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National Weather Service:

Winter Storm Warning

Bay Area Forecast

Today's Highs/Lows
Concord	58° / 40°
Fairfield	54° / 41°
Fremont	58° / 40°
Hayward	56° / 43°
Livermore	56° / 41°
Moffett Field	56° / 43°
Napa	58° / 38°
Oakland	56° / 41°
Redwood City	58° / 41°
San Francisco	58° / 49°
San Jose	58° / 43°
San Rafael	58° / 43°
Santa Cruz	61° / 38°

Going Somewhere?

Selected Highs/Lows
Arcata	49° / 40°
Bakersfield	52° / 40°
Fresno	54° / 32°
Henderson	63° / 40°
Los Angeles	67° / 52°
Monterey	56° / 43°
Mount Shasta	38° / 29°
Palm Springs	70° / 49°
Redding	45° / 34°
Reno	43° / 31°
Sacramento	54° / 41°
San Diego	63° / 54°
S. Lake Tahoe	38° / 23°
Ukiah	54° / 38°
Yosemite	47° / 25°

Weather

Current Conditions
Update: 10:03 PM

Mount Shasta, CA
Overcast

	Temperature:	34°
	Wind:	Calm
	Dew point:	32°
	Pressure:	29.95 in.
	Wind chill:	34°
	Humidity:	93%
	Visibility:	2.0 miles
	Observed at: Mount Shasta, CA

Forecast for South Central Siskiyou County

Rest of Tonight

Rain and snow showers this evening...then chance of snow showers after midnight. New snow accumulation up to 1 inch. Lows in the lower 20s to lower 30s. Northwest winds 5 to 10 mph. Chance of precipitation near 100 percent.

Saturday

Mostly cloudy. Slight chance of snow showers in the morning...then slight chance of rain and snow showers in the afternoon. Snow level 3500 feet in the afternoon. Highs in the lower 30s to lower 40s. North winds around 5 mph shifting to the south in the late morning and afternoon. Chance of precipitation 20 percent.

Saturday Night

Rain and snow likely in the evening...then rain and snow after midnight. Snow level 4000 feet. Snow accumulation of 1 to 2 inches. Lows in the mid 20s to lower 30s. South winds 10 to 15 mph. Chance of precipitation 80 percent.

Bay Area Temps

Updated: 1:07 AM EST on November 21, 2009

Fairfield

44°

Half Moon Bay

48°

Hayward

48°

Livermore

44°

Moffett Field

48°

Napa

46°

Novato

45°

Oakland

47°

Richmond

47°

San Francisco

50°

San Jose

48°

Santa Rosa

40°

Walnut Creek

48°

5 Day Forecast for ZIP Code 96067

Saturday	Sunday	Monday	Tuesday	Wednesday

Mostly Cloudy High: 38° Low: 29° Detail \| Almanac	Chance of Snow High: 43° Low: 27° Detail \| Almanac	Partly Cloudy High: 45° Low: 31° Detail \| Almanac	Partly Cloudy High: 45° Low: 31° Detail \| Almanac	Partly Cloudy High: 49° Low: 29° Detail \| Almanac

View from space

Regional Radar

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Local Satellite

Extended forecast for South Central Siskiyou County

Sunday

Mostly cloudy. Rain and snow showers likely. Snow level 4500 feet. Highs in the mid 30s to mid 40s. Southwest winds 10 to 15 mph. Chance of precipitation 60 percent.

Sunday Night

Mostly cloudy with a 20 percent chance of rain and snow. Snow level 4500 feet. Lows in the lower 20s to lower 30s. Southwest winds around 5 mph shifting to the northeast after midnight.

Monday

Mostly cloudy with a slight chance of rain. Highs in the lower 40s to lower 50s.

Monday Night

Mostly cloudy. Lows in the mid 20s to mid 30s.

Tuesday and Tuesday Night

Partly cloudy. Highs in the mid 40s to mid 50s. Lows in the mid 20s to mid 30s.

Wednesday

Sunny in the morning then becoming partly cloudy. Highs in the lower to mid 50s.

Wednesday Night

Partly cloudy. Lows around 30.

Thanksgiving Day

Partly cloudy in the morning then becoming mostly cloudy. Chance of rain. Highs in the lower 50s to lower 60s.

Thursday Night

Mostly cloudy with a chance of rain showers. Lows in the mid 20s to lower 30s.

Friday

Mostly cloudy. Highs in the lower 40s to lower 50s.

Almanac

Key: T = Trace of precipitation
MM = data not available

November 21, 2009
Normal high:	48°
Record high:	68° (2002)

Normal low:	29°
Record low:	9° (1977)

Complete weather almanac

Astronomy

Sunrise:	07:04 AM (PST)
Moon Rise:	10:41 AM (PST) 11/20

Sunset:	04:45 PM (PST)
Moon Set:	08:03 PM (PST) 11/20

Moon Phase


Nov. 21	Nov. 24	Dec. 02	Dec. 08	Dec. 16

Bay Area Conditions

	Yesterday		Today		Conditions
	High	Low	High	Low
Antioch	63°	36°	59°	45°	Clear
Benicia	63°	36°	56°	45°	Clear
Berkeley	57°	37°	56°	47°	Partly Cloudy
Brentwood	63°	32°	58°	43°	Clear
Concord	63°	36°	58°	40°	Clear
Fairfield	63°	28°	54°	41°	Clear
Fremont	59°	39°	58°	40°	Clear
Half Moon Bay	59°	41°	54°	43°	Partly Cloudy
Hayward	59°	39°	56°	43°	Clear
Livermore	63°	32°	56°	41°	Clear
Moffett Field	61°	37°	56°	43°	Clear
Napa	59°	28°	58°	38°	Clear
Novato	57°	34°	58°	41°	Clear
Oakland	57°	37°	56°	41°	Partly Cloudy
Richmond	57°	37°	56°	49°	Partly Cloudy
Redwood City	59°	41°	58°	41°	Partly Cloudy
San Francisco	59°	43°	58°	49°	Partly Cloudy
San Jose	63°	37°	58°	43°	Partly Cloudy
San Mateo	59°	43°	56°	45°	Partly Cloudy
San Rafael	57°	34°	58°	43°	Clear
San Ramon	63°	32°	58°	41°	Clear
Santa Rosa	61°	30°	58°	40°	Partly Cloudy
Santa Cruz	66°	34°	61°	38°	Clear
Tracy	63°	32°	58°	41°	Clear
Vacaville	61°	36°	56°	38°	Clear
Walnut Creek	63°	36°	56°	41°	Clear
Arcata	57°	42°	49°	40°	Scattered Clouds
Bakersfield	63°	43°	52°	40°	Mostly Cloudy
Fresno	61°	39°	54°	32°	Light Rain
Henderson	68°	37°	63°	40°	Clear
Los Angeles	75°	48°	67°	52°	Clear
Monterey	61°	37°	56°	43°	Scattered Clouds
Mount Shasta	40°	33°	38°	29°	Overcast
Palm Springs	82°	52°	70°	49°	Clear
Redding	49°	37°	45°	34°	Clear
Reno	57°	25°	43°	31°	Scattered Clouds
Sacramento	59°	32°	54°	41°	Clear
San Diego	65°	48°	63°	54°	Mostly Cloudy
South Lake Tahoe	50°	30°	38°	23°	Overcast
Ukiah	61°	28°	54°	38°	Scattered Clouds
Yosemite National Park	52°	16°	47°	25°	Clear

Winter Storm Warning
Statement as of 6:39 PM PST on November 20, 2009

... Winter Storm Warning now in effect until 1 am PST Saturday
above 3000 feet...

The Winter Storm Warning above 3000 feet is now in effect until
1 am PST Saturday.

* Timing: steadier snow will continue through about 11pm tonight
decreasing to isolated snow showers after midnight.

* Snow accumulations: additional accumulation of 1 to 4 inches
with storm total accumulation 3 to 6 inches between 3000 and
4000 feet and 6 to 12 inches above 4000 feet.

* Snow levels: currently 3500 feet and will drop to around 2500
feet by 7pm.

* Impacts: expected impacts will be on Interstate 5 around
Siskiyou Summit... around The Mount Ashland ski Road... and from
Union Creek north through The Crater and Diamond Lake areas.

Precautionary/preparedness actions...

A Winter Storm Warning for heavy snow means severe winter weather
conditions are expected or occurring. Significant amounts of
snow are forecast that will make travel dangerous. If you must
travel... keep an extra flashlight... food... and water in your
vehicle in case of an emergency.