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.

52°F

11°C

Humidity	94%
Wind Speed	NE 4 MPH
Barometer	NA
Dewpoint	50°F (10°C)
Visibility	NA
Last update	11 Apr 03:52 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 April 11, 08:00pm until April 12, 11:00am

Click here for hazard details and duration

Winter Weather Advisory

This Afternoon
High: 40 °F
Rain/Snow
Tonight
Low: 33 °F
Rain/Snow
then Snow
Showers
Likely
Sunday
High: 39 °F
Chance Snow
Showers then
Rain/Snow
Sunday Night
Low: 35 °F
Rain/Snow
then Chance
Snow Showers
Monday
High: 40 °F
Snow Showers
Likely then
Rain/Snow
Likely
Monday Night
Low: 34 °F
Chance
Rain/Snow
then Mostly
Cloudy
Tuesday
High: 46 °F
Partly Sunny
then Chance
Rain
Tuesday Night
Low: 35 °F
Rain/Snow
Likely then
Snow Likely
Wednesday
High: 37 °F
Snow then
Rain/Snow

Detailed Forecast

This Afternoon

Rain, possibly mixed with snow showers. Some thunder is also possible. Snow level 5600 feet. High near 40. South southwest wind around 7 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Tonight

Rain and snow showers, becoming all snow after midnight. Snow level 5300 feet lowering to 4800 feet after midnight . Low around 33. East northeast wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Sunday

Rain, possibly mixed with snow showers. Some thunder is also possible. High near 39. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Sunday Night

Rain and snow showers, becoming all snow after 8pm. Low around 35. West wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Monday

Snow showers likely before 2pm, then rain showers likely. Mostly cloudy, with a high near 40. 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 showers, mixing with snow after 8pm, then gradually ending. Mostly cloudy, with a low around 34. Chance of precipitation is 40%. Little or no snow accumulation expected.

Tuesday

A 30 percent chance of rain after 5pm. Mostly sunny, with a high near 46.

Tuesday Night

A chance of rain before 8pm, then snow likely. Mostly cloudy, with a low around 35.

Wednesday

Snow before 2pm, then rain and snow. Cloudy, with a high near 37.

Wednesday Night

Snow likely, mainly before 11pm. Mostly cloudy, with a low around 26.

Thursday

Sunny, with a high near 42.

Thursday Night

Mostly clear, with a low around 28.