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	95%
Wind Speed	SW 3 MPH
Barometer	NA
Dewpoint	51°F (11°C)
Visibility	NA
Last update	10 Apr 08:52 PM PDT

More Information:

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

Extended Forecast for

16 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

Tonight
Low: 43 °F
Rain Likely
Saturday
High: 47 °F
Showers then
Rain/Snow
Saturday Night
Low: 41 °F
Rain/Snow
then Rain
Likely
Sunday
High: 45 °F
Rain/Snow
Sunday Night
Low: 39 °F
Rain Likely
then Chance
Rain
Monday
High: 46 °F
Rain Likely
Monday Night
Low: 38 °F
Chance Rain
then Mostly
Cloudy
Tuesday
High: 53 °F
Mostly Sunny
Tuesday Night
Low: 39 °F
Chance Rain

Detailed Forecast

Tonight

Rain likely, mainly before midnight. Snow level 6600 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 43. South wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Saturday

Rain showers before 4pm, then rain, possibly mixed with snow showers. Some thunder is also possible. Snow level 5700 feet. High near 47. Southwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Saturday Night

Rain, possibly mixed with snow, becoming all rain after 8pm. Snow level 5100 feet. Steady temperature around 41. West wind around 6 mph becoming north northeast in the evening. Chance of precipitation is 100%. Little or no snow accumulation expected.

Sunday

Rain showers likely before 11am, then rain, possibly mixed with snow showers between 11am and 2pm, then rain showers after 2pm. Some thunder is also possible. Snow level 4300 feet rising to 5000 feet in the afternoon. High near 45. South wind 6 to 8 mph becoming west in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.

Sunday Night

Rain likely, mainly before 11pm. Snow level 5100 feet lowering to 4300 feet after midnight . Mostly cloudy, with a low around 39. West wind 5 to 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Monday

Rain likely, mainly after 11am. Snow level 4000 feet rising to 5100 feet in the afternoon. Mostly cloudy, with a high near 46. Chance of precipitation is 60%.

Monday Night

A 30 percent chance of rain before 11pm. Snow level 5400 feet lowering to 4500 feet after midnight . Mostly cloudy, with a low around 38.

Tuesday

Mostly sunny, with a high near 53.

Tuesday Night

A chance of rain, mainly after 11pm. Snow level 5700 feet lowering to 4400 feet after midnight . Mostly cloudy, with a low around 39.

Wednesday

Rain likely. Snow level 4400 feet rising to 4900 feet in the afternoon. Mostly cloudy, with a high near 45.

Wednesday Night

A chance of rain and snow. Snow level 4800 feet lowering to 3000 feet after midnight . Mostly cloudy, with a low around 32.

Thursday

Sunny, with a high near 51.