Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Hazardous Weather Conditions

Winter Weather Advisory in effect from April 11, 08:00 PM PDT until April 12, 11:00 AM PDT

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10386°NLon: 123.68519°WElev: 1389.0ft.

49°F

9°C

Humidity	100%
Wind Speed	SW 1 MPH
Barometer	NA
Dewpoint	49°F (9°C)
Visibility	NA
Last update	11 Apr 05:52 AM PDT

More Information:

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

Extended Forecast for

13 Miles NE Happy Camp CA

Winter Weather Advisory April 11, 08:00pm until April 12, 11:00am

Click here for hazard details and duration

Winter Weather Advisory

Today
High: 38 °F⇓
Rain/Snow
Tonight
Low: 33 °F
Snow then
Chance Snow
Sunday
High: 35 °F
Snow Showers
Sunday Night
Low: 34 °F
Snow Likely
then Chance
Snow
Monday
High: 36 °F
Chance Snow
Monday Night
Low: 34 °F
Chance Snow
then Mostly
Cloudy
Tuesday
High: 42 °F
Partly Sunny
then Chance
Rain
Tuesday Night
Low: 33 °F
Chance
Rain/Snow
then Chance
Snow
Wednesday
High: 35 °F
Rain/Snow

Detailed Forecast

Today

Rain and snow, becoming all snow after 1pm. Some thunder is also possible. Temperature falling to around 35 by 1pm. South southeast wind 6 to 8 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.

Tonight

Snow, mainly before midnight. Low around 33. East southeast wind 5 to 9 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Sunday

Snow likely before 11am, then snow showers after 11am. Some thunder is also possible. High near 35. South southeast wind 5 to 8 mph becoming west southwest in the afternoon. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Sunday Night

Snow likely, mainly before 11pm. Mostly cloudy, with a low around 34. West wind 9 to 13 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Monday

A 50 percent chance of snow. Mostly cloudy, with a high near 36. West wind 8 to 14 mph, with gusts as high as 18 mph. New snow accumulation of less than a half inch possible.

Monday Night

A 30 percent chance of snow before 11pm. Mostly cloudy, with a low around 34. Little or no snow accumulation expected.

Tuesday

A 30 percent chance of rain after 5pm. Partly sunny, with a high near 42.

Tuesday Night

A chance of rain and snow before 8pm, then a chance of snow. Mostly cloudy, with a low around 33.

Wednesday

Snow before 8am, then snow, possibly mixed with rain. Mostly cloudy, with a high near 35.

Wednesday Night

A chance of rain and snow before 8pm, then a chance of snow. Mostly cloudy, with a low around 27.

Thursday

A slight chance of snow. Sunny, with a high near 40.