Weather Alerts For Fairfax, CA
Wind Advisory
-URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 323 AM PST Wed Dec 24 2025 North Bay Interior Mountains-North Bay Interior Valleys-San Francisco Bay Shoreline-East Bay Interior Valleys-Santa Cruz Mountains-Santa Clara Valley Including San Jose-Eastern Santa Clara Hills-East Bay Hills-Mountains of San Benito County And Interior Monterey County including Pinnacles National Park- 323 AM PST Wed Dec 24 2025 ...WIND ADVISORY NOW IN EFFECT UNTIL 8 AM PST THIS MORNING... * WHAT...Southeast winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...The East Bay and San Francisco Bay Shoreline, The Santa Clara Valley and Eastern Hills, The Santa Cruz Mountains, Most of San Benito County and the Cholame Hills in Southeast Monterey County, North Bay Interior Mountains, and North Bay Interior Valleys. * WHEN...Until 8 AM PST this morning. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. &&
Flood Watch
-Flood Watch National Weather Service San Francisco CA 1139 PM PST Tue Dec 23 2025 Marin Coastal Range-Sonoma Coastal Range-North Bay Interior Mountains-Coastal North Bay Including Point Reyes National Seashore-North Bay Interior Valleys- Including the cities of Novato, Lagunitas-Forest Knolls, South Santa Rosa, Woodacre, Napa, Angwin, Petaluma, Tamalpais-Homestead, Rohnert Park, Santa Rosa, Sausalito, and San Rafael 1139 PM PST Tue Dec 23 2025 ...FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY EVENING... * WHAT...Flooding caused by excessive rainfall continues to be possible from multiple lines of showers and thunderstorms, strong at times, moving across the area. * WHERE...The Northern San Francisco Bay Area (Napa, Sonoma, and Marin counties). * WHEN...Through Friday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Low water crossings may become flooded. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Multiple rounds of moderate to heavy rainfall are expected across the North Bay through Friday evening. An additional 3-5" is possible over the North Bay Mountains and 2-3" over the North Bay Valleys by Friday. Nuisance flooding will increase throughout the week with sharp rises in smaller creeks and minor flooding along some of the mainstream rivers (Russian River, Napa River). Debris flows are possible particularly for the Pickett Burn Scar. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. &&
Severe Storm Risk
-There is a Marginal Severe Storm Risk for your location. Continue reading for today's outlook from the National Weather Service's Storm Prediction Center. -------------------- National Severe Storm Outlook THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF COASTAL CALIFORNIA SUMMARY An isolated threat for severe/damaging gusts and perhaps brief tornadoes may develop late tonight/early Wednesday morning across parts of coastal California. 01Z Update A strong short-wave trough/surface low continues to approach the California/Oregon coast. Later tonight a midlevel speed max will intensify, helping to deepen the surface low, which will drive a cold front eastward into California during the overnight and morning hours. Despite limited buoyancy, especially surface based, strengthening tropospheric flow and forced convection along the cold front may support isolated damaging wind gusts along the California coast. Should truly surface-based buoyancy develop and the forced convection can realize this buoyancy, forecast wind profiles along the coast exhibit sufficient deep-layer shear and low-level curvature to support brief tornadoes. The easternmost extent of this threat, especially across southern California, is delineated by the expected position of the surface-cold front at 12Z/4AM PT. The threat will continue past 12Z/4AM PT.