Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain Returns to California

Lake effect snow will continue through Friday bringing significant snowfall to areas east to southeast of the Great Lakes. Snow squalls may impact New Year's Eve travel this evening and overnight across parts of the Great Lakes, Ohio Valley, Mid-Atlantic, and Upstate New York. Heavy rain will bring another flash flooding threat for southern California New Year's Eve into New Year's Day. 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	32%
Wind Speed	ESE 12 MPH
Barometer	NA
Dewpoint	22°F (-6°C)
Visibility	NA
Last update	31 Dec 05:01 AM PST

More Information:

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

Extended Forecast for

5 Miles SW Lakeport CA

Overnight
Low: 48 °F
Slight Chance
Rain
Wednesday
High: 51 °F
Chance Rain
then Rain
Wednesday Night
Low: 46 °F
Rain
New Year's Day
High: 52 °F
Rain
Thursday Night
Low: 49 °F
Rain
Friday
High: 51 °F
Showers and
Breezy
Friday Night
Low: 45 °F
Showers and
Windy
Saturday
High: 48 °F
Rain and
Breezy
Saturday Night
Low: 44 °F
Rain

Detailed Forecast

Overnight

A 20 percent chance of rain. Mostly cloudy, with a low around 48. East northeast wind around 6 mph.

Wednesday

Rain, mainly after 1pm. High near 51. East wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain. Low around 46. East wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

New Year's Day

Rain. High near 52. East wind 6 to 8 mph becoming south in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night

Rain. Low around 49. South southeast wind around 10 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Rain before 4pm, then showers and possibly a thunderstorm after 4pm. High near 51. Breezy, with a south southeast wind 18 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Friday Night

Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Low around 45. Windy. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Saturday

Rain. Cloudy, with a high near 48. Breezy.

Saturday Night

Rain. Cloudy, with a low around 44.

Sunday

Rain. Mostly cloudy, with a high near 47.

Sunday Night

Rain. Mostly cloudy, with a low around 44.

Monday

Rain likely. Mostly cloudy, with a high near 46.

Monday Night

Rain likely. Mostly cloudy, with a low around 44.