Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Hazardous Weather Conditions

Cold Weather Advisory in effect from December 30, 01:00 AM PST until December 30, 09:00 AM PST

Current conditions at

BLACK DIAMOND (PIBC1)

Lat: 37.95°NLon: 121.88444°WElev: 1600.0ft.

52°F

11°C

Humidity	37%
Wind Speed	NNW 8 MPH
Barometer	NA
Dewpoint	26°F (-3°C)
Visibility	NA
Last update	29 Dec 02:28 PM PST

More Information:

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

Extended Forecast for

5 Miles N Discovery Bay CA

Cold Weather Advisory December 30, 01:00am until December 30, 09:00am

Click here for hazard details and duration

Cold Weather Advisory

This Afternoon
High: 51 °F
Sunny
Tonight
Low: 37 °F
Patchy Dense
Fog
Tuesday
High: 48 °F
Patchy Dense
Fog then
Mostly Cloudy
Tuesday Night
Low: 44 °F
Patchy Fog
then Slight
Chance Rain
Wednesday
High: 49 °F
Chance Rain
then Rain
Wednesday Night
Low: 48 °F
Rain
New Year's Day
High: 55 °F
Rain
Thursday Night
Low: 53 °F
Rain Likely
Friday
High: 57 °F
Rain Likely

Detailed Forecast

This Afternoon

Sunny, with a steady temperature around 51. North wind around 5 mph.

Tonight

Patchy dense fog after 8pm. Otherwise, increasing clouds, with a low around 37. Calm wind becoming southeast around 5 mph.

Tuesday

Patchy dense fog before 9am. Otherwise, mostly cloudy, with a high near 48. Calm wind becoming east around 5 mph in the morning.

Tuesday Night

A 10 percent chance of rain after 4am. Patchy fog before 11pm. Otherwise, cloudy, with a low around 44. North wind around 5 mph becoming calm after midnight.

Wednesday

Rain, mainly after 4pm. High near 49. Calm wind becoming northeast around 5 mph in the morning. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night

Rain. Low around 48. 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. Chance of precipitation is 90%.

Thursday Night

Rain likely. Mostly cloudy, with a low around 53.

Friday

Rain likely. Cloudy, with a high near 57.

Friday Night

Rain. Cloudy, with a low around 49.

Saturday

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