Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Hazardous Weather Conditions

Hydrologic Outlook

Current conditions at

LYONS VALLEY (COWC1)

Lat: 39.12583°NLon: 123.07333°WElev: 3355.0ft.

51°F

11°C

Humidity	28%
Wind Speed	SSE 3 MPH
Barometer	NA
Dewpoint	19°F (-7°C)
Visibility	NA
Last update	30 Dec 07:01 AM PST

More Information:

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

Extended Forecast for

10 Miles NNW Lakeport CA

Today
High: 58 °F
Increasing
Clouds
Tonight
Low: 38 °F
Mostly Cloudy
Wednesday
High: 58 °F
Chance Rain
Wednesday Night
Low: 44 °F
Rain
New Year's Day
High: 55 °F
Rain
Thursday Night
Low: 46 °F
Rain
Friday
High: 55 °F
Showers
Friday Night
Low: 39 °F
Rain
Saturday
High: 51 °F
Rain

Detailed Forecast

Today

Increasing clouds, with a high near 58. Calm wind becoming southeast around 5 mph in the afternoon.

Tonight

Mostly cloudy, with a low around 38. Light and variable wind.

Wednesday

A 50 percent chance of rain after 10am. Mostly cloudy, with a high near 58. Calm wind becoming southeast 5 to 7 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night

Rain. Low around 44. East southeast wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

New Year's Day

Rain. High near 55. Southeast wind 6 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Rain. Low around 46. Southeast wind 9 to 11 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday

Showers and possibly a thunderstorm before 1pm, then rain after 1pm. High near 55. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Friday Night

Rain. Cloudy, with a low around 39.

Saturday

Rain. Mostly cloudy, with a high near 51.

Saturday Night

Rain likely. Mostly cloudy, with a low around 37.

Sunday

Rain likely. Mostly cloudy, with a high near 53.

Sunday Night

Rain likely. Mostly cloudy, with a low around 37.

Monday

Rain likely. Mostly cloudy, with a high near 55.