This event is no longer active — it's kept here as a record. Recovery may still be underway; the guidance below applies.
Part of: California Riverside Flooding — August 2026 →
Flash Flood Warning issued August 11 at 2:54PM PDT until August 11 at 4:00PM PDT by NWS San Diego CA
This is a severe-significance flash flood warning event affecting San Diego, CA, tracked from official feeds (NOAA / National Weather Service). We update this page as the situation develops.
- Type
- Flash Flood Warning
- Extent
- ≈ 49,435 acres
- Began
- To end
Hazard details
- Flash-flood damage threat
- CONSIDERABLE
Damage signals as reported by NOAA / National Weather Service — verbatim, not an estimate.
Affected by this event? Open your area's damage guides below to reach a vetted local restoration pro, 24/7.
Affected area map
The shaded area is the affected-area perimeter reported for this event by NOAA / National Weather Service (San Diego, CA), colored by hazard type. Pan and zoom to explore the map; when more than one observation exists, use the slider below to step through how the reported area changed.
Interactive affected-area map
San Diego, CA · ≈ 77 sq mi reported extent · Enable JavaScript to explore the map.
Shown as reported by our sources — not an official product. For current advisories and the authoritative map, see NOAA / National Weather Service ↗.
Restoration help near this event
Tap your city for a vetted local pro on that service, answered 24/7. Where we don't have a nearby city page yet, the step-by-step guides cover what to do first.
Latest updates
Official updates and news coverage for this event, newest first — National Weather Service products, local storm reports, incident updates and press headlines. Official items are verbatim government text; news headlines link out to the original outlet.
- Bulletin NWS San Diego CA
Flash Flood Warning issued
San Diego, CA
- News Merced Sun-Star
San Diego County placed under a flood advisory Monday afternoon, says the NWS
- News San Luis Obispo Tribune
UPDATE: Coastal flood advisory affecting San Diego County Coastal Areas and Orange County Coastal
- News modbee.com
Flood advisory in place for Riverside and San Diego counties early Sunday evening
Show 1 earlier update
Updates are captured automatically from official and news sources, and may lag the live source. For the very latest, see NOAA / National Weather Service ↗.