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 until April 12, 11:00 AM PDT

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

41°F

5°C

Humidity	100%
Wind Speed	SSW 1 MPH
Barometer	NA
Dewpoint	41°F (5°C)
Visibility	NA
Last update	12 Apr 03:52 AM PDT

More Information:

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

Extended Forecast for

12 Miles NNE Happy Camp CA

Winter Weather Advisory April 12, 04:00am until April 12, 11:00am

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory April 12, 04:00am until April 12, 11:00am
NOW until 11:00am Sun
Winter Weather Advisory
Overnight
Low: 32 °F
Chance Snow
Sunday
High: 39 °F
Chance Snow
then
Rain/Snow
Sunday Night
Low: 33 °F
Rain/Snow
Likely then
Chance Snow
Monday
High: 39 °F
Snow Likely
then
Rain/Snow
Likely
Monday Night
Low: 34 °F
Chance
Rain/Snow
then Mostly
Cloudy
Tuesday
High: 44 °F
Partly Sunny
then Chance
Rain
Tuesday Night
Low: 34 °F
Rain/Snow
Likely then
Snow Likely
Wednesday
High: 36 °F
Rain/Snow

Detailed Forecast

Overnight

A 30 percent chance of snow, mainly after 5am. Mostly cloudy, with a low around 32. South southeast wind around 5 mph. Total nighttime snow accumulation of less than a half inch possible.

Sunday

Snow likely before 1pm, then rain and snow showers. Some thunder is also possible. High near 39. Light and variable wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.

Sunday Night

Rain and snow likely before 2am, then a chance of snow. Mostly cloudy, with a low around 33. West wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Monday

Snow likely before 2pm, then rain and snow likely between 2pm and 5pm, then rain likely after 5pm. Mostly cloudy, with a high near 39. Calm wind becoming west southwest 5 to 7 mph in the afternoon. Chance of precipitation is 60%. Little or no snow accumulation expected.

Monday Night

A chance of rain, mixing with snow after 8pm, then gradually ending. Mostly cloudy, with a low around 34. West northwest wind 5 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

Tuesday

A 30 percent chance of rain after 5pm. Partly sunny, with a high near 44.

Tuesday Night

A chance of rain and snow before 8pm, then snow likely. Mostly cloudy, with a low around 34. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Wednesday

Snow before 11am, then rain and snow. Cloudy, with a high near 36.

Wednesday Night

Rain and snow likely before 11pm, then a slight chance of snow. Mostly cloudy, with a low around 25.

Thursday

Sunny, with a high near 40.

Thursday Night

Mostly clear, with a low around 27.

Friday

Sunny, with a high near 50.

Friday Night

Partly cloudy, with a low around 35.