Flash Flood Warnings Issued for Riverside and San Bernardino Counties
1 report, 1 independent
Updated Thu 00:00
AI-generated briefing. Brind wrote this from the reports listed below and has updated it as the story developed. It can be wrong. Each section says how much you can rely on it, and the sources are linked so you can check.
What happened
Heavy rain prompted the National Weather Service to issue flash flood warnings for Riverside County and San Bernardino County on September 24, 2026. The rainfall was part of a monsoon pattern and was not linked to Hurricanes Polo and Odalys. The severe weather led to a mudslide in an Inland Empire burn scar in San Bernardino County.
From latimes.com
Why it matters
The warnings were issued while the entities were under a flash flood watch. The mudslide occurred in an area prone to debris flows downhill from the burn scars. Authorities stated there was no threat to homes or residents in the affected areas.
From latimes.com
Who's involved
- National Weather ServiceU.S. forecasting agency of the National Oceanic and Atmospheric Administration
- San Bernardino CountyCounty in California, United States
- RiversideAmerican record label
How it developed
Newest first. Tap a step to see who reported it.- Storms in San Bernardino County caused mud and debris flows.Sub-event
NWS warns of heavy rain and flash flooding in Riverside and San Bernardino counties.1 source
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The entities involved
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National Weather Service
U.S. forecasting agency of the National Oceanic and Atmospheric Administration
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San Bernardino County
county in California, United States
Related events
- Flash flood warnings were issued by the National Weather Service for an affected county due to intense rainfall on September 20, 2026.
- The National Weather Service issued flash flood warnings and severe thunderstorm warnings for Montgomery county on June 18, 2026.
- The National Weather Service has issued warnings regarding widespread flash flooding in Connecticut due to heavy rain.
- The National Weather Service issued a flash flood warning for Lincoln County on September 24, 2026.
- Extreme heat warnings are in effect for Riverside County, issued by the National Weather Service.