WGUS56 KMTR 251111 FFWMTR CAC081-085-251415- /O.NEW.KMTR.FF.W.0008.251225T1111Z-251225T1415Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service San Francisco CA 311 AM PST Thu Dec 25 2025 The National Weather Service in San Francisco has issued a * Flash Flood Warning for... East Central San Mateo County in northern California... Northwestern Santa Clara County in northern California... * Until 615 AM PST. * At 311 AM PST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.2 and 1 inch of rain has fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... San Jose, Fremont, Sunnyvale, Santa Clara, Mountain View, Milpitas, Palo Alto, Cupertino, Campbell, Menlo Park, Saratoga, Los Gatos, Los Altos, East Palo Alto, Los Altos Hills, Woodside, Fruitdale, Buena Vista, Sunol-Midtown and Rancho Rinconada Cdp. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Be aware of your surroundings and do not drive on flooded roads. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely. && LAT...LON 3747 12212 3746 12210 3747 12207 3746 12205 3746 12195 3747 12195 3723 12164 3709 12184 3714 12199 3717 12203 3719 12203 3721 12206 3722 12208 3728 12215 3738 12223 FLASH FLOOD...RADAR INDICATED FLASH FLOOD DAMAGE THREAT...CONSIDERABLE $$ KR