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.

43°F

6°C

Humidity	100%
Wind Speed	NNE 0 MPH
Barometer	NA
Dewpoint	43°F (6°C)
Visibility	NA
Last update	11 Apr 09:52 PM PDT

More Information:

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

Extended Forecast for

11 Miles NNE Happy Camp CA

Winter Weather Advisory until April 12, 11:00am

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory until April 12, 11:00am
NOW until 11:00am Sun
Winter Weather Advisory
Tonight
Low: 36 °F
Rain/Snow
Likely
Sunday
High: 41 °F
Chance
Rain/Snow
then
Rain/Snow
Sunday Night
Low: 35 °F
Rain/Snow
then Chance
Rain/Snow
Monday
High: 42 °F
Rain/Snow
Likely
Monday Night
Low: 35 °F
Chance
Showers then
Mostly Cloudy
Tuesday
High: 48 °F
Partly Sunny
Tuesday Night
Low: 36 °F
Chance
Rain/Snow
Wednesday
High: 39 °F
Rain/Snow

Detailed Forecast

Tonight

Rain and snow showers likely, becoming all snow after 4am. Snow level 5100 feet lowering to 4400 feet after midnight . Mostly cloudy, with a steady temperature around 36. South wind 3 to 5 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

Sunday

Rain and snow showers. Some thunder is also possible. Snow level rising to 5100 feet in the afternoon. High near 41. Calm wind becoming west southwest 5 to 7 mph in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Sunday Night

Rain and snow showers before 2am, then a chance of snow showers. Snow level 5100 feet lowering to 4400 feet after midnight . Low around 35. West southwest wind 5 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Monday

Snow showers likely before 11am, then rain and snow showers likely between 11am and 2pm, then rain showers likely after 2pm. Snow level rising to 5000 feet in the afternoon. Mostly cloudy, with a high near 42. Southwest wind 3 to 5 mph. Winds could gust as high as 22 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Monday Night

A 40 percent chance of showers before 11pm. Snow level 5300 feet lowering to 4400 feet after midnight . Mostly cloudy, with a low around 35. West wind 5 to 8 mph, with gusts as high as 21 mph.

Tuesday

Partly sunny, with a high near 48.

Tuesday Night

A chance of rain before 8pm, then a chance of rain and snow. Snow level 5600 feet lowering to 4400 feet after midnight . Mostly cloudy, with a low around 36. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

Wednesday

Rain and snow, becoming all rain after 2pm. Snow level rising to 5000 feet in the afternoon. Cloudy, with a high near 39.

Wednesday Night

Rain and snow likely before 2am, then a chance of snow. Mostly cloudy, with a low around 27.

Thursday

Sunny, with a high near 43.

Thursday Night

Mostly clear, with a low around 29.

Friday

Sunny, with a high near 55.

Friday Night

Partly cloudy, with a low around 37.