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

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.

48°F

9°C

Humidity	42%
Wind Speed	NNE 14 MPH
Barometer	NA
Dewpoint	26°F (-3°C)
Visibility	NA
Wind Chill	42°F (6°C)
Last update	30 Dec 05:28 AM PST

More Information:

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

Extended Forecast for

4 Miles ENE Clayton CA

Cold Weather Advisory until December 30, 09:00am

Click here for hazard details and duration

...

Cold Weather Advisory until December 30, 09:00am
NOW until 9:00am Tue
Cold Weather Advisory
Today
High: 47 °F
Mostly Cloudy
Tonight
Low: 44 °F
Cloudy then
Slight Chance
Rain
Wednesday
High: 47 °F
Chance Rain
then Rain
Wednesday Night
Low: 44 °F
Rain
New Year's Day
High: 53 °F
Rain
Thursday Night
Low: 52 °F
Showers
Friday
High: 54 °F
Showers
Friday Night
Low: 47 °F
Rain

Detailed Forecast

Today

Mostly cloudy, with a high near 47. East wind 8 to 10 mph.

Tonight

A 10 percent chance of rain after 4am. Cloudy, with a steady temperature around 44. East wind around 8 mph.

Wednesday

Rain, mainly after 4pm. High near 47. East wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain. Low around 44. East wind 8 to 11 mph, with gusts as high as 18 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 53. South wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Rain, mainly before 4am, then showers likely and possibly a thunderstorm after 4am. Low around 52. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

Showers likely and possibly a thunderstorm, then rain after 10am. High near 54. Chance of precipitation is 80%.

Friday Night

Rain. Mostly cloudy, with a low around 47.

Saturday

Rain likely. Mostly cloudy, with a high near 50.

Saturday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 44.

Sunday

A chance of rain. Mostly cloudy, with a high near 50.

Sunday Night

A chance of rain. Mostly cloudy, with a low around 45.