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.

54°F

12°C

Humidity	83%
Wind Speed	SE 2 MPH
Barometer	NA
Dewpoint	49°F (9°C)
Visibility	NA
Last update	11 Apr 11:52 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 11, 08:00pm until April 12, 11:00am

Click here for hazard details and duration

Winter Weather Advisory

This Afternoon
High: 39 °F
Rain/Snow
Tonight
Low: 32 °F
Rain/Snow
then Snow
Showers
Likely
Sunday
High: 38 °F
Chance Snow
Showers then
Rain/Snow
Sunday Night
Low: 34 °F
Snow Showers
then Chance
Snow Showers
Monday
High: 38 °F
Snow Showers
Likely then
Rain/Snow
Likely
Monday Night
Low: 35 °F
Chance
Rain/Snow
then Mostly
Cloudy
Tuesday
High: 45 °F
Mostly Sunny
Tuesday Night
Low: 35 °F
Rain/Snow
Likely
Wednesday
High: 36 °F
Rain/Snow

Detailed Forecast

This Afternoon

Rain showers before 1pm, then rain, possibly mixed with snow showers. Some thunder is also possible. Snow level 5700 feet. High near 39. South southwest wind 8 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Tonight

Rain and snow showers, becoming all snow after 9pm. Low around 32. East wind around 6 mph becoming south southwest in the evening. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Sunday

Snow showers before 3pm, then rain and snow showers. Some thunder is also possible. High near 38. Light and variable wind becoming west southwest 5 to 8 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

Snow showers, mainly before 11pm. Low around 34. West southwest wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Monday

Snow showers likely before 5pm, then snow showers likely, possibly mixed with rain. Mostly cloudy, with a high near 38. West southwest wind 3 to 6 mph. Winds could gust as high as 21 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Monday Night

A chance of rain and snow showers before 8pm, then a chance of snow showers between 8pm and 11pm. Mostly cloudy, with a low around 35. Chance of precipitation is 40%. Little or no snow accumulation expected.

Tuesday

Mostly sunny, with a high near 45.

Tuesday Night

Rain and snow likely, mainly after 11pm. Mostly cloudy, with a low around 35.

Wednesday

Rain and snow. Cloudy, with a high near 36.

Wednesday Night

Rain and snow likely before 2am, then a chance of snow. Mostly cloudy, with a low around 26.

Thursday

Sunny, with a high near 41.

Thursday Night

Mostly clear, with a low around 28.