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.

50°F

10°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	NA
Dewpoint	50°F (10°C)
Visibility	NA
Last update	10 Apr 11:52 PM 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

Overnight
Low: 38 °F
Rain Likely
Saturday
High: 38 °F⇓
Rain/Snow
Saturday Night
Low: 33 °F
Rain/Snow
then Snow
Likely
Sunday
High: 38 °F
Snow then
Rain/Snow
Sunday Night
Low: 35 °F
Rain/Snow
then Chance
Snow
Monday
High: 39 °F
Snow Likely
then
Rain/Snow
Likely
Monday Night
Low: 35 °F
Chance
Rain/Snow
then Mostly
Cloudy
Tuesday
High: 44 °F
Partly Sunny
Tuesday Night
Low: 35 °F
Chance
Rain/Snow

Detailed Forecast

Overnight

Rain likely, mainly between 2am and 3am. Snow level 6100 feet. Mostly cloudy, with a low around 38. South wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Saturday

Rain and snow before 4pm, then rain, possibly mixed with snow showers between 4pm and 5pm, then rain, possibly mixed with snow after 5pm. Some thunder is also possible. Snow level 5600 feet. Temperature falling to around 36 by 3pm. South southeast wind 6 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 100%. Little or no snow accumulation expected.

Saturday Night

Rain and snow, becoming all snow after 11pm. Low around 33. East wind 5 to 10 mph becoming light east northeast. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Sunday

Snow showers before 2pm, then rain and snow showers. Some thunder is also possible. High near 38. Calm wind becoming west southwest 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Sunday Night

Rain and snow, becoming all snow after 8pm. Low around 35. West wind 6 to 9 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Monday

Snow likely before 2pm, then rain and snow likely. Mostly cloudy, with a high near 39. Chance of precipitation is 60%. Little or no snow accumulation expected.

Monday Night

A chance of rain and snow before 11pm. Mostly cloudy, with a low around 35. Chance of precipitation is 30%. Little or no snow accumulation expected.

Tuesday

Partly sunny, with a high near 44.

Tuesday Night

A chance of rain and snow. Mostly cloudy, with a low around 35.

Wednesday

Rain and snow. Mostly cloudy, with a high near 37.

Wednesday Night

Rain and snow likely. Mostly cloudy, with a low around 28.

Thursday

A slight chance of snow. Sunny, with a high near 43.