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.

Clear

37°F

3°C

Humidity	93%
Wind Speed	N 0 MPH
Barometer	29.82 in (1009.82 mb)
Dewpoint	36°F (2°C)
Visibility	10.00 mi
Last update	18 Feb 01:20 AM PST

More Information:

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

Extended Forecast for

7 Miles WSW 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
and Patchy
Fog
Wednesday
High: 49 °F
Chance
Rain/Snow and
Patchy Fog
then Chance
Rain
Wednesday Night
Low: 36 °F
Rain and
Patchy Fog
Thursday
High: 48 °F
Rain/Snow and
Areas Fog
then Chance
Rain
Thursday Night
Low: 31 °F
Frost
Friday
High: 48 °F
Frost then
Partly Sunny
Friday Night
Low: 37 °F
Slight Chance
Rain
Saturday
High: 51 °F
Rain Likely

Detailed Forecast

Overnight

Patchy fog after 5am. Areas of frost after 4am. Otherwise, partly cloudy, with a low around 34. North northwest wind 9 to 11 mph, with gusts as high as 29 mph.

Wednesday

A chance of rain and snow before 1pm, then a chance of rain between 1pm and 4pm. Patchy fog between 7am and 9am. Otherwise, partly sunny, with a high near 49. West southwest wind 5 to 7 mph becoming calm in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.

Wednesday Night

Rain, mainly after 8pm. Patchy fog after 3am. Low around 36. East southeast wind 5 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Thursday

Rain before 9am, then rain and snow between 9am and 10am, then a chance of rain after 10am. Areas of fog before 8am. High near 48. West northwest wind 6 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 31. West northwest wind 5 to 7 mph becoming calm after midnight.

Friday

Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 48.

Friday Night

A 20 percent chance of rain. Mostly cloudy, with a low around 37.

Saturday

Rain likely, mainly after 4pm. Mostly cloudy, with a high near 51.

Saturday Night

Rain. Cloudy, with a low around 47.

Sunday

Rain. Cloudy, with a high near 56.