Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Hazardous Weather Conditions

Cold Weather Advisory in effect from December 29, 01:00 AM PST until December 29, 09:00 AM PST
Coastal Flood Advisory in effect from December 31, 05:00 AM PST until January 4, 02:00 PM PST

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

Lat: 38.5°NLon: 122.81667°WElev: 125.0ft.

Fog

32°F

0°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	30.29 in (1025.74 mb)
Dewpoint	32°F (0°C)
Visibility	0.50 mi
Last update	29 Dec 06:08 AM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Saint Helena CA

Coastal Flood Advisory December 31, 05:00am until January 4, 02:00pm

Cold Weather Advisory until December 29, 09:00am

Click here for hazard details and duration

Coastal Flood Advisory

...

Cold Weather Advisory until December 29, 09:00am
NOW until 9:00am Mon
Cold Weather Advisory
Today
High: 59 °F
Sunny
Tonight
Low: 36 °F
Mostly Clear
then Patchy
Frost
Tuesday
High: 56 °F
Patchy Frost
then Mostly
Sunny
Tuesday Night
Low: 40 °F
Mostly Cloudy
Wednesday
High: 55 °F
Chance Rain
Wednesday Night
Low: 42 °F
Rain Likely
and Patchy
Fog
New Year's Day
High: 52 °F
Rain Likely
and Patchy
Fog
Thursday Night
Low: 46 °F
Rain Likely
and Patchy
Fog

Detailed Forecast

Today

Sunny, with a high near 59. Calm wind.

Tonight

Patchy frost after 5am. Otherwise, mostly clear, with a low around 36. Calm wind.

Tuesday

Patchy frost before 7am. Otherwise, increasing clouds, with a high near 56. Light northeast wind.

Tuesday Night

Mostly cloudy, with a low around 40. Calm wind.

Wednesday

A 30 percent chance of rain after 10am. Mostly cloudy, with a high near 55. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night

Rain likely, mainly after 10pm. Patchy fog. Otherwise, cloudy, with a low around 42. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

New Year's Day

Rain likely. Patchy fog before 10am. Otherwise, cloudy, with a high near 52. Chance of precipitation is 70%.

Thursday Night

Rain likely. Patchy fog. Otherwise, cloudy, with a low around 46.

Friday

Rain likely. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 55.

Friday Night

Rain likely. Patchy fog after 1am. Otherwise, cloudy, with a low around 46.

Saturday

Rain likely. Patchy fog. Otherwise, mostly cloudy, with a high near 54.

Saturday Night

Rain likely. Patchy fog. Otherwise, mostly cloudy, with a low around 45.