Critical Fire Weather in the High Plains; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central and southern High Plains Wednesday. Two Pacific storms will continue impacting the mountains of the western U.S. into Thursday with gusty winds and heavy snow. Heavy snow and gusty winds will continue to impact the northern Plains into the central Great Lakes Wednesday. Read More >

Hazardous Weather Conditions

Cold Weather Advisory in effect from February 18, 12:00 AM PST until February 18, 09:00 AM PST

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

Lat: 38.5°NLon: 122.81667°WElev: 125.0ft.

Mist

34°F

1°C

Humidity	93%
Wind Speed	N 0 MPH
Barometer	29.87 in (1011.51 mb)
Dewpoint	32°F (0°C)
Visibility	1.00 mi
Last update	18 Feb 04:00 AM PST

More Information:

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

Extended Forecast for

6 Miles SSW Saint Helena CA

Cold Weather Advisory until February 18, 09:00am

Click here for hazard details and duration

Cold Weather Advisory

Cold Weather Advisory until February 18, 09:00am
NOW until 9:00am Wed
Cold Weather Advisory
Overnight
Low: 34 °F
Areas Frost
Wednesday
High: 46 °F
Chance
Rain/Snow
then Chance
Rain
Wednesday Night
Low: 40 °F
Rain
Thursday
High: 46 °F
Rain/Snow
then Chance
Rain/Snow
Thursday Night
Low: 33 °F
Mostly Clear
then Frost
Friday
High: 46 °F
Areas Frost
then Partly
Sunny
Friday Night
Low: 39 °F
Slight Chance
Rain
Saturday
High: 50 °F
Rain Likely

Detailed Forecast

Overnight

Areas of frost. Otherwise, mostly clear, with a low around 34. North wind 6 to 8 mph.

Wednesday

A chance of rain and snow before 1pm, then a chance of rain between 1pm and 4pm. Partly sunny, with a high near 46. Light and variable wind becoming west southwest 5 to 9 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Wednesday Night

Rain, mainly after 8pm. Steady temperature around 40. Calm wind becoming southeast 5 to 9 mph. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Thursday

Rain and snow before 1pm, then a chance of rain. High near 46. West northwest wind 7 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 33. Northwest wind 5 to 9 mph, with gusts as high as 21 mph.

Friday

Areas of frost before 8am. Otherwise, mostly sunny, with a high near 46.

Friday Night

A 20 percent chance of rain. Mostly cloudy, with a low around 39.

Saturday

Rain likely, mainly after 4pm. Mostly cloudy, with a high near 50.

Saturday Night

Rain. Mostly cloudy, with a low around 47.

Sunday

Rain. Cloudy, with a high near 57.