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

Current conditions at

Novato / Gnoss Field (KDVO)

Lat: 38.14178°NLon: 122.55463°WElev: 3.0ft.

Mist

43°F

6°C

Humidity	93%
Wind Speed	S 9 MPH
Barometer	30.22 in (1023.37 mb)
Dewpoint	41°F (5°C)
Visibility	5.00 mi
Wind Chill	38°F (3°C)
Last update	30 Dec 07:35 AM PST

More Information:

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

Extended Forecast for

Petaluma CA

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

Cold Weather Advisory until December 30, 09:00am

Dense Fog Advisory December 30, 08:05am until December 30, 10:00am

Click here for hazard details and duration

Coastal Flood Advisory

...

Cold Weather Advisory until December 30, 09:00am
Dense Fog Advisory December 30, 08:05am until December 30, 10:00am
NOW: Multiple hazards in effect
Click HERE for Details
Today
High: 54 °F
Partly Sunny
Tonight
Low: 44 °F
Cloudy then
Slight Chance
Rain
Wednesday
High: 52 °F
Rain and
Patchy Fog
Wednesday Night
Low: 47 °F
Rain and
Patchy Fog
New Year's Day
High: 55 °F
Rain and
Patchy Fog
Thursday Night
Low: 52 °F
Showers and
Areas Fog
Friday
High: 56 °F
Showers
Friday Night
Low: 45 °F
Rain and
Patchy Fog

Detailed Forecast

Today

Partly sunny, with a high near 54. East southeast wind 8 to 11 mph.

Tonight

A 10 percent chance of rain after 4am. Cloudy, with a low around 44. Southeast wind around 7 mph.

Wednesday

Rain, mainly after 10am. Patchy fog after 3pm. High near 52. East southeast wind 3 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain. Patchy fog before 7pm. Low around 47. East wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

New Year's Day

Rain. Patchy fog. High near 55. South southeast wind around 7 mph. 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. Areas of fog. Low around 52. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

Showers likely and possibly a thunderstorm, then rain after 10am. High near 56. Chance of precipitation is 80%.

Friday Night

Rain. Patchy fog after 1am. Otherwise, cloudy, with a low around 45.

Saturday

Rain likely. Patchy fog before 1pm. Otherwise, mostly cloudy, with a high near 53.

Saturday Night

Rain likely. Areas of fog after 7pm. Otherwise, mostly cloudy, with a low around 43.

Sunday

A chance of rain. Areas of fog. Otherwise, mostly cloudy, with a high near 54.

Sunday Night

Rain likely. Patchy fog. Otherwise, mostly cloudy, with a low around 43.