First published 10/11/2026, 8:49:15 AM UTC · Last updated 10/11/2026, 8:49:15 AM UTC

Flash Flood Warning issued October 11 at 1:17AM PDT until October 11 at 4:15AM PDT by NWS San Diego CA

NWS San Diego issued a flash flood warning for Riverside County, California, until 4:15 a.m. PDT on October 11, citing radar-indicated heavy rain and ongoing or imminent flooding. The warning listed several affected communities and advised people not to drive on flooded roads.

Illustrative image: City of Santee is building a recreation trail along the 107-acre Walker Preserve adjacent to the San Diego River — Devindad/Wikimedia Commons, CC BY-SA 3.0

Why it matters

The warning identifies potential flooding on roads and in urban areas and calls for immediate caution around flooded roads.

Location

Categories: severe-weather-and-natural-disasters

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 8/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 3/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 2/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 4/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Positivity: 2/10How harmful or beneficial the event is, from strongly harmful (1) to strongly positive (10).
Urgency: 9/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Sources

Primary official sourceFlash Flood Warning issued October 11 at 1:17AM PDT until October 11 at 4:15AM PDT by NWS San Diego CA

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