Type your address. Find out if tonight's Red Flag Warning applies to you, what to do, and your evacuation zone.
Free · No signup · Sources: NWS + US Census + Genasys · Not affiliated with Alameda County
Important during fire season: NWS Red Flag Warning polygons are advisory, not boundaries that stop fire. Wind-driven fires (1991 Oakland Hills, 2023 Lahaina, 2025 Palisades) routinely pushed past nominal polygons until they ran out of fuel or hit the ocean. Treat fire-season nights as fire-weather nights regardless of polygon status. Keep a go-bag ready.