Santa Rosa, CA Warnings, Watches and Advisories

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Santa Rosa.

Use the Radar Maps link provided to understand the trajectory of a storm.

High Wind Watch issued October 31 at 7:19PM PDT until November 3 at 10:00AM PST by NWS Hanford CA

* WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Mojave Desert Slopes. * WHEN...From Saturday evening through Sunday morning. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...This watch ends at 10 AM PST due to the end of Daylight Saving Time.

Freeze Warning issued October 31 at 6:23PM PDT until November 1 at 9:00AM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Temperatures 32 degrees or below are expected. * WHERE...Antelope Valley, Eastern Antelope Valley Foothills, and San Luis Obispo County Interior Valleys. * WHEN...From 1 AM to 9 AM PDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Frost Advisory issued October 31 at 6:23PM PDT until November 1 at 9:00AM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Temperatures between 30 and 35 degrees will result in frost formation. * WHERE...Cuyama Valley, Ojai Valley, and Southern Salinas Valley. * WHEN...From 1 AM to 9 AM PDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Winter Weather Advisory issued October 31 at 5:43PM PDT until November 2 at 11:00PM PDT by NWS Hanford CA

* WHAT...Snow expected above 6,000 feet. Total snow accumulations up to 5-7 inches expected, with 8 inches possible at the highest elevations. At Tioga Pass, there is a 59 percent chance of four or more inches of snow, and a 26 percent chance of six inches or more of snow. * WHERE...Kaiser to Rodgers Ridge, Kings Canyon NP, Upper San Joaquin River, and Yosemite NP outside of the valley. * WHEN...From 5 PM Friday to 11 PM PDT Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. The hazardous conditions could impact the Friday evening commute.

Winter Weather Advisory issued October 31 at 12:46PM PDT until November 2 at 5:00PM PDT by NWS Sacramento CA

* WHAT...Snow expected above 6000 feet. Total snow accumulations between 5 and 10 inches. Winds gusting as high as 40 mph. * WHERE...West Slope Northern Sierra Nevada and Western Plumas County/Lassen Park Counties. * WHEN...From 5 PM Friday to 5 PM PDT Saturday. * IMPACTS...Snow covered roads, chain controls and travel delays are possible. The hazardous conditions could impact travel Friday evening through Saturday afternoon. * ADDITIONAL DETAILS...Heaviest snowfall is expected Friday night through Saturday morning, gradually diminishing through the afternoon. Scattered snow showers will persist into Saturday night.

Wind Advisory issued October 31 at 12:37PM PDT until November 1 at 3:00PM PDT by NWS Eureka CA

* WHAT...South winds 15 to 25 mph with gusts of 35 to 45 mph expected. * WHERE...Northern Humboldt Coast. * WHEN...From 8 AM to 3 PM PDT Friday. * IMPACTS...Wind gusts will be particularly strong along windward ridges and exposed coastal headlands. There is an increased risk of tree branches and other debris on roadways. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Wind Advisory issued October 31 at 12:37PM PDT until November 1 at 3:00PM PDT by NWS Eureka CA

* WHAT...South winds 20 to 25 mph with gusts up to 40 mph expected. Gusts as high as 50 mph possible at Pt Saint George * WHERE...Del Norte Coast. * WHEN...From 7 AM to 3 PM PDT Friday. * IMPACTS...Wind gusts will be particularly strong along windward ridges and exposed coastal headlands. There is an increased risk of tree branches and other debris on roadways. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Wind Advisory issued October 31 at 12:37PM PDT until November 1 at 5:00PM PDT by NWS Eureka CA

* WHAT...South winds 20 to 30 mph with gusts of 40 to 50 mph expected. * WHERE...Humboldt Interior, Del Norte Interior, and Southwestern Humboldt. * WHEN...From 7 AM to 5 PM PDT Friday, with the strongest winds expected midday. * IMPACTS...Wind gusts will be particularly strong along windward ridges and exposed coastal headlands. There is an increased risk of tree branches and other debris on roadways. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winter Weather Advisory issued October 31 at 12:07PM PDT until November 2 at 5:00PM PDT by NWS Reno NV

* WHAT...Snow above 5000 feet. Snow accumulations up to 4 inches in western Lassen and the Lakes Basin in Plumas County. Higher totals near 6 inches are possible over Yuba Pass. * WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties. * WHEN...From 5 PM Friday to 5 PM PDT Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact travel Friday evening through Saturday morning.

Winter Weather Advisory issued October 31 at 12:07PM PDT until November 2 at 5:00PM PDT by NWS Reno NV

* WHAT...Snow. Snow accumulations up to 4 inches below 7000 feet and 4 and 8 inches above 7000 feet. Winds gusting as high as 50 mph over Sierra ridges. * WHERE...Greater Lake Tahoe Area. * WHEN...From 5 PM Friday to 5 PM PDT Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday evening commute. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Gusty winds and waves up to 3 feet may lead to hazardous boating conditions on Lake Tahoe.

Winter Weather Advisory issued October 31 at 12:07PM PDT until November 2 at 5:00PM PDT by NWS Reno NV

* WHAT...Snow. Snow accumulations up to 2 inches for communities along Highway 395 with 2 and 6 inches above 7000 feet. Winds gusting as high as 50 mph over Sierra ridges. * WHERE...Mono County. * WHEN...From 11 PM Friday to 5 PM PDT Saturday. * IMPACTS...Plan on slippery road conditions, including Highways 120 and 395.