San Francisco, 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 San Francisco.

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

Special Weather Statement issued April 12 at 4:43AM PDT by NWS Los Angeles/Oxnard CA

At 442 AM PDT, Doppler radar was tracking gusty showers across portions of Ventura and Los Angeles Counties moving northeast at 25 mph. HAZARD...Wind gusts up to 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Oxnard... Thousand Oaks... Simi Valley... Eastern Ventura... Camarillo... Fillmore... Chatsworth... Woodland Hills... Malibu... Agoura Hills... Moorpark... Santa Paula... Point Mugu State Park... Calabasas... Newbury Park... Topanga State Park... Westlake Village... Canoga Park... Malibu Creek State Park... and Point Dume.

Winter Storm Warning issued April 12 at 4:42AM PDT until April 12 at 11:00PM PDT by NWS Sacramento CA

* WHAT...Heavy snow. Additional snow accumulations 12 to 18 inches above 4500 feet, with up to 2 feet at the highest peaks. Minor snowfall accumulations of 2 to 4 inches down to 4000 feet. Winds gusting as high as 45 mph. * WHERE...West Slope Northern Sierra Nevada and Western Plumas County/Lassen Park above 4500 feet. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Travel could be very difficult to impossible. * ADDITIONAL DETAILS...Snow levels around 4000-5000 ft. Heaviest snowfall expected through early this evening, with snowfall rates up to 1 inch per hour.

Wind Advisory issued April 12 at 4:12AM PDT until April 12 at 11:00PM PDT by NWS Las Vegas NV

* WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Eastern Mojave Desert, Morongo Basin, and Western Mojave Desert. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Pockets of blowing dust will be possible near dry lake beds which may result in brief reductions of visibility.

Wind Advisory issued April 12 at 4:12AM PDT until April 12 at 11:00PM PDT by NWS Las Vegas NV

* WHAT...South to Southwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Death Valley National Park and Owens Valley. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Strongest winds in the Owens Valley are expected mainly along and west of the US-395 corridor.

Winter Weather Advisory issued April 12 at 4:09AM PDT until April 12 at 11:00PM PDT by NWS Las Vegas NV

* WHAT...Snow and strong winds will make for hazardous conditions in the Eastern Sierra. Snow accumulations of 3 to 7 inches between 8,000 and 9,500 feet expected. Snow accumulations of 8 to 12 inches above 9,500 feet, with locally higher totals exceeding 1 foot possible along the ridgeline. Winds may gust as high as 60 mph, resulting in blowing and drifting snow. * WHERE...Eastern Sierra Slopes. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions Strong winds could cause tree damage.

Winter Weather Advisory issued April 12 at 3:35AM PDT until April 12 at 11:00AM PDT by NWS Medford OR

* WHAT...Additional snow accumulations up to 3 inches over mountain peaks and ridges. * WHERE...Elevations above 5000 feet in the Salmon and Scott Mountains in western Siskiyou County. * WHEN...Until 11 AM PDT this morning. * IMPACTS...Travel may be difficult over higher remote terrain. * ADDITIONAL DETAILS...Visit weather.gov/mfr/winter for additional snow probabilities

Winter Weather Advisory issued April 12 at 12:45AM PDT until April 12 at 11:00PM PDT by NWS Eureka CA

* WHAT...Snow. Additional snow accumulations between 4 and 6 inches. * WHERE...Northern Trinity above 5000 feet. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Travel could be difficult over Highway 3 at Scott Mountain Pass.

Winter Weather Advisory issued April 12 at 12:40AM PDT until April 13 at 11:00AM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Wet snow expected. Total snow accumulations up to around 6 inches above 6000 feet. Winds gusting as high as 45 mph. * WHERE...Eastern San Gabriel Mountains, Interstate 5 Corridor, and Western San Gabriel Mountains and Highway 14 Corridor. * WHEN...Until 11 AM PDT Monday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Monday morning commute. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Snow levels will be around 7000 feet through Sunday morning, then lowering to 6000 feet Sunday afternoon and 4500 to 5000 feet late Sunday night into Monday morning. No accumulating snow is expected on the Grapevine over Interstate 5 but there could be a mix of rain and snow there Monday morning.

Winter Weather Advisory issued April 12 at 12:40AM PDT until April 13 at 11:00AM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Wet snow expected. Total snow amounts up to around 6 inches above 6000 feet. Winds gusting as high as 40 mph. * WHERE...Northern Ventura County Mountains, Santa Barbara County Interior Mountains, and Southern Ventura County Mountains. * WHEN...Until 11 AM PDT Monday. * IMPACTS...The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...Snow levels will be around 7000 feet through Sunday morning, then lowering to 6000 feet Sunday afternoon and 4500 to 5000 feet late Sunday night into Monday morning.

Wind Advisory issued April 12 at 12:39AM PDT until April 12 at 10:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph expected. Isolated gusts to around 55 mph near Lake Palmdale. * WHERE...Eastern Antelope Valley Foothills and Western Antelope Valley Foothills. * WHEN...Until 10 PM PDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Wind Advisory issued April 11 at 10:54PM PDT until April 12 at 11:00PM PDT by NWS Hanford CA

* WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Mojave Desert Slopes. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Includes State Routes 14, 58, and 178, as well as U.S. 395.

Winter Storm Warning issued April 11 at 9:36PM PDT until April 12 at 11:00PM PDT by NWS Hanford CA

* WHAT...Heavy snow expected. Low-end storm total of 10 inches and high-end total of 30 inches expected in Madera and Mariposa Counties and Yosemite National Park above 7,000 ft. Winds gusting to 55 mph or higher. * WHERE...A portion of central California. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening.

Winter Storm Warning issued April 11 at 12:15PM PDT until April 12 at 11:00PM PDT by NWS Reno NV

* WHAT...Heavy snow. Snow accumulations between 2 to 8 inches below 8000 feet, 6 to 12 inches above 8000 feet, and locally up to 24 inches across higher terrain along the Sierra crest. Winds peak along the crest gusting as high as 80 mph and up to 45 to 55 mph along Highway 395. * WHERE...Mono County. * WHEN...From 2 PM this afternoon to 11 PM PDT Sunday. * IMPACTS...Travel could be very difficult to impossible. Strong winds could cause damage to trees and power lines.

Winter Weather Advisory issued April 11 at 12:15PM PDT until April 12 at 11:00PM PDT by NWS Reno NV

* WHAT...Snow. Snow accumulations up to 6 inches below 6500 feet, 6 to 12 inches above 6500 feet, and up to 24 inches above 7000 feet in eastern Sierra County. Peak winds could gust as high as 35 to 45 mph Saturday afternoon and evening. * WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties. * WHEN...From 2 PM this afternoon to 11 PM PDT Sunday. * IMPACTS...Plan on slippery road conditions, especially for the Saturday evening and Sunday morning commutes.

Winter Storm Warning issued April 11 at 12:15PM PDT until April 12 at 11:00PM PDT by NWS Reno NV

* WHAT...Heavy snow. Snow accumulations between 6 to 10 inches for communities surrounding Lake Tahoe and up to 7000 feet, and 12 to 25 inches above 7000 feet and for Sierra passes. Winds gusting as high as 90 mph along the Sierra crest and 20-45 mph for communities surrounding Lake Tahoe. Wave heights for Lake Tahoe from 1 to 3 feet. * WHERE...Greater Lake Tahoe Area. * WHEN...From 2 PM this afternoon to 11 PM PDT Sunday. * IMPACTS...Travel could be very difficult to impossible, especially for the Saturday evening and Sunday morning commutes. Strong winds could cause damage to trees and power lines.