NWS Phoenix AZFF.W 0085October 11, 2026
Flash Flood Warning: Imperial and Riverside, CA
The National Weather Service office in Phoenix issued a flash flood warning for Imperial and Riverside in California, in force until 5:00 a.m. local time on October 11. It was the 85th flash flood warning the NWS office in Phoenix issued in 2026. California had 9 flash flood warnings in October 2026, against 9 in an average October of 2008-2025 (California's flash flood warnings by year).
Warning
In force for 4 hours
The notice
- Issued by
- National Weather Service, Phoenix AZ
- Area
- Imperial and Riverside
- State
- California
- Level
- Warning
- Issued
- 1:00 a.m. PDT, October 11, 2026
- Expires
- 5:00 a.m. PDT, October 11, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KPSR FF.W 0085
- Official source
- National Weather Service: the notice at its source
Flash Flood Warnings in California since 2008Every warning type in California
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
FFWPSR The National Weather Service in Phoenix has issued a * Flash Flood Warning for... North Central Imperial County in southeastern California... Riverside County in southern California... * Until 500 AM PDT. * At 100 AM PDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1 inch of rain has fallen. The expected rainfall rate is 1 to 3 inches in 1 hour. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. 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... North Shore, Bombay Beach and Imperial Hot Mineral Springs.
What the agency told people to do
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.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.
The record around this notice
- Flash Flood Warnings in California since 2008177 a year
- Every warning type in California
- Flash Flood Warning: what it means, and the states that get the most3,924 a year
- NWS notices, October 20266,001 in the month
- The latest from the National Weather Service
- Warning, watch or advisory: the three NWS levels