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

An Alberta clipper will bring lake effect snow downwind of the Great Lakes, with the highest snow totals downwind of Lakes Erie and Ontario. Snow squalls may impact New Year's Eve travel during the evening and overnight hours across parts of the Great Lakes, Ohio Valley, and Northeast. Heavy rain will bring a flash flooding threat for southern California on New Year's Eve into New Year's Day. Read More >

Hazardous Weather Conditions

Coastal Flood Advisory in effect from December 31, 05:00 AM PST until January 4, 02:00 PM PST

Current conditions at

LAS TRAMPAS (LTRC1)

Lat: 37.83389°NLon: 122.06694°WElev: 1760.0ft.

47°F

8°C

Humidity	52%
Wind Speed	ENE 17 MPH
Barometer	NA
Dewpoint	30°F (-1°C)
Visibility	NA
Wind Chill	40°F (4°C)
Last update	31 Dec 03:28 AM PST

More Information:

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

Extended Forecast for

5 Miles SSE Lamorinda CA

Coastal Flood Advisory December 31, 05:00am until January 4, 02:00pm

Click here for hazard details and duration

Coastal Flood Advisory

Overnight
Low: 44 °F
Chance Rain
Wednesday
High: 53 °F
Rain
Wednesday Night
Low: 48 °F
Rain
New Year's Day
High: 58 °F
Rain
Thursday Night
Low: 51 °F
Rain then
Chance Rain
Friday
High: 58 °F
Rain
Friday Night
Low: 51 °F
Showers
Saturday
High: 57 °F
Rain
Saturday Night
Low: 48 °F
Rain

Detailed Forecast

Overnight

A 30 percent chance of rain. Cloudy, with a low around 44. North northeast wind around 9 mph.

Wednesday

Rain, mainly after 10am. High near 53. Northeast wind 6 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain. Low around 48. Northeast wind 6 to 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 58. South wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Rain, mainly before 10pm. Low around 51. South southeast wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Friday

Rain, mainly after 10am. High near 58. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday Night

Rain before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then rain and possibly a thunderstorm after 4am. Low around 51. Chance of precipitation is 90%.

Saturday

Rain. Cloudy, with a high near 57.

Saturday Night

Rain. Cloudy, with a low around 48.

Sunday

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

Sunday Night

Rain likely. Mostly cloudy, with a low around 47.

Monday

Rain likely. Mostly cloudy, with a high near 54.

Monday Night

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