Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Hazardous Weather Conditions

Winter Weather Advisory until April 12, 11:00 PM PDT

Current conditions at

POR31-Iron Horse (LIB09)

Lat: 39.77898°NLon: 120.50284°WElev: 5001.0ft.

31°F

-1°C

Humidity	97%
Wind Speed	SW 0 MPH
Barometer	NA
Dewpoint	30°F (-1°C)
Visibility	NA
Last update	12 Apr 08:10 PM PDT

More Information:

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

Extended Forecast for

2 Miles SSW Portola CA

Winter Weather Advisory April 12, 08:29pm until April 12, 11:00pm

Click here for hazard details and duration

...

Winter Weather Advisory April 12, 08:29pm until April 12, 11:00pm
NOW until 11:00pm Sun
Winter Weather Advisory
Tonight
Low: 22 °F
Snow Showers
Likely then
Slight Chance
Snow Showers
Monday
High: 50 °F
Mostly Sunny
Monday Night
Low: 24 °F
Partly Cloudy
Tuesday
High: 53 °F
Mostly Sunny
Tuesday Night
Low: 28 °F
Partly Cloudy
Wednesday
High: 52 °F
Partly Sunny
Wednesday Night
Low: 28 °F
Showers
Likely then
Rain/Snow
Likely
Thursday
High: 47 °F
Chance Snow
Showers then
Sunny

Detailed Forecast

Tonight

Snow showers likely, mainly before 11pm. Mostly cloudy, with a low around 22. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

Monday

Mostly sunny, with a high near 50. Calm wind becoming west around 5 mph in the afternoon.

Monday Night

Partly cloudy, with a low around 24. West wind around 5 mph becoming calm in the evening.

Tuesday

Mostly sunny, with a high near 53. Light west wind increasing to 5 to 10 mph in the afternoon.

Tuesday Night

Partly cloudy, with a low around 28. Southwest wind 5 to 10 mph.

Wednesday

Partly sunny, with a high near 52. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

Wednesday Night

Rain showers likely before 2am, then rain and snow showers likely. Snow level 7000 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 28. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Thursday

A chance of snow showers before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 47.

Thursday Night

Clear, with a low around 21.

Friday

Sunny, with a high near 57.

Friday Night

Mostly clear, with a low around 26.

Saturday

Mostly sunny, with a high near 63.

Saturday Night

Partly cloudy, with a low around 31.