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

Air Stagnation Advisory in effect from December 28, 04:00 PM PST until December 31, 04:00 PM PST

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10375°NLon: 123.68508°WElev: 1389.0ft.

46°F

8°C

Humidity	64%
Wind Speed	E 1 MPH
Barometer	NA
Dewpoint	34°F (1°C)
Visibility	NA
Last update	29 Dec 12:52 PM PST

More Information:

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

Extended Forecast for

16 Miles SE Agness OR

Air Stagnation Advisory until December 31, 04:00pm

Click here for hazard details and duration

Air Stagnation Advisory

Air Stagnation Advisory until December 31, 04:00pm
NOW until 4:00pm Wed
Air Stagnation Advisory
This Afternoon
High: 51 °F
Mostly Sunny
Tonight
Low: 42 °F
Mostly Clear
Tuesday
High: 54 °F
Sunny
Tuesday Night
Low: 40 °F
Increasing
Clouds
Wednesday
High: 51 °F
Chance Rain
Wednesday Night
Low: 43 °F
Rain Likely
New Year's Day
High: 47 °F
Rain
Thursday Night
Low: 44 °F
Rain

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 51. East southeast wind around 5 mph.

Tonight

Mostly clear, with a low around 42. East wind around 8 mph.

Tuesday

Sunny, with a high near 54. East southeast wind 5 to 7 mph becoming west southwest in the afternoon.

Tuesday Night

Increasing clouds, with a low around 40. East wind around 6 mph.

Wednesday

A 30 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 51. South wind around 7 mph.

Wednesday Night

Rain likely, mainly after 10pm. Mostly cloudy, with a low around 43. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

New Year's Day

Rain. High near 47. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night

Rain. Mostly cloudy, with a low around 44.

Friday

Rain. Mostly cloudy, with a high near 47.

Friday Night

Rain. Snow level 5300 feet lowering to 4800 feet after midnight . Mostly cloudy, with a low around 40.

Saturday

Rain. Snow level 4300 feet. Mostly cloudy, with a high near 44.

Saturday Night

Rain, possibly mixed with snow. Snow level 4100 feet. Mostly cloudy, with a low around 40.