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.

53°F

12°C

Humidity	98%
Wind Speed	SW 0 MPH
Barometer	NA
Dewpoint	52°F (11°C)
Visibility	NA
Last update	10 Apr 06:52 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

Tonight
Low: 39 °F
Rain then
Chance
Rain/Snow
Saturday
High: 40 °F
Rain/Snow
Saturday Night
Low: 35 °F
Rain/Snow
then
Rain/Snow
Likely
Sunday
High: 38 °F
Snow then
Rain/Snow
Sunday Night
Low: 36 °F
Rain/Snow
then Chance
Snow
Monday
High: 41 °F
Snow Likely
then
Rain/Snow
Likely
Monday Night
Low: 34 °F
Chance
Rain/Snow
then Mostly
Cloudy
Tuesday
High: 46 °F
Partly Sunny
Tuesday Night
Low: 36 °F
Chance
Rain/Snow
then Chance
Snow

Detailed Forecast

Tonight

Rain before 3am, then a chance of rain and snow. Some thunder is also possible. Snow level 6900 feet lowering to 5900 feet after midnight . Low around 39. South southwest wind around 7 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Saturday

Rain and snow showers before 3pm, then rain, possibly mixed with snow showers. Some thunder is also possible. Snow level 5600 feet. High near 40. South 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

Snow, possibly mixed with rain. Snow level 5000 feet. Low around 35. Southwest wind around 6 mph becoming northeast in the evening. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Sunday

Snow before 2pm, then rain, possibly mixed with snow showers. Some thunder is also possible. High near 38. Southwest wind 6 to 8 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Sunday Night

Rain and snow before 11pm, then a chance of snow. Low around 36. West wind 6 to 9 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Monday

Snow likely before 2pm, then rain likely, possibly mixed with snow between 2pm and 5pm, then rain likely after 5pm. Mostly cloudy, with a high near 41. 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. Snow level 5400 feet lowering to 4800 feet after midnight . Mostly cloudy, with a low around 34. Chance of precipitation is 40%. Little or no snow accumulation expected.

Tuesday

Partly sunny, with a high near 46.

Tuesday Night

A chance of rain before 8pm, then a chance of rain and snow between 8pm and 11pm, then a chance of snow after 11pm. Mostly cloudy, with a low around 36.

Wednesday

Snow likely before 2pm, then rain likely. Mostly cloudy, with a high near 40.

Wednesday Night

A chance of snow. Mostly cloudy, with a low around 29.

Thursday

Sunny, with a high near 46.

Thursday Night

Mostly clear, with a low around 31.

Friday

A slight chance of rain. Sunny, with a high near 52.