Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Berkeley Lab (LBNL1)

Lat: 37.8771°NLon: 122.2486°WElev: 888.0ft.

51°F

11°C

Humidity	48%
Wind Speed	SW 1 MPH
Barometer	NA
Dewpoint	32°F (0°C)
Visibility	NA
Last update	30 Dec 01:15 AM PST

More Information:

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

Extended Forecast for

2 Miles N Hercules CA

Dense Fog Advisory December 30, 01:36am until December 30, 10:00am

Cold Weather Advisory until December 30, 09:00am

Click here for hazard details and duration

Dense Fog Advisory

Cold Weather Advisory

Dense Fog Advisory December 30, 01:36am until December 30, 10:00am
Cold Weather Advisory until December 30, 09:00am
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 38 °F
Partly Cloudy
Tuesday
High: 50 °F
Mostly Cloudy
Tuesday Night
Low: 45 °F
Cloudy then
Slight Chance
Rain
Wednesday
High: 50 °F
Rain
Wednesday Night
Low: 47 °F
Rain
New Year's Day
High: 55 °F
Rain
Thursday Night
Low: 53 °F
Showers and
Patchy Fog
Friday
High: 57 °F
Showers

Detailed Forecast

Overnight

Partly cloudy, with a low around 38. East wind around 11 mph.

Tuesday

Mostly cloudy, with a high near 50. East wind 14 to 17 mph, with gusts as high as 22 mph.

Tuesday Night

A 10 percent chance of rain after 4am. Cloudy, with a low around 45. East wind 13 to 16 mph, with gusts as high as 21 mph.

Wednesday

Rain, mainly after 10am. High near 50. East wind 8 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain. Low around 47. East northeast wind 10 to 13 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 55. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Rain before 4am, then showers likely and possibly a thunderstorm after 4am. Patchy fog before 1am. Low around 53. Chance of precipitation is 80%.

Friday

Showers likely and possibly a thunderstorm, then rain after 10am. Cloudy, with a high near 57.

Friday Night

Rain. Cloudy, with a low around 49.

Saturday

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

Saturday Night

Rain likely. Patchy fog. Otherwise, mostly cloudy, with a low around 46.