NWS San Diego CAFF.W 0012October 11, 2026
Flash Flood Warning: Riverside, CA
The National Weather Service office in San Diego issued a flash flood warning for Riverside in California, in force until 4:15 a.m. local time on October 11. It was the 12th flash flood warning the NWS office in San Diego 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 3 hours
The notice
- Issued by
- National Weather Service, San Diego CA
- Area
- Riverside
- State
- California
- Level
- Warning
- Issued
- 1:17 a.m. PDT, October 11, 2026
- Expires
- 4:15 a.m. PDT, October 11, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KSGX FF.W 0012
- 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
FFWSGX The National Weather Service in San Diego has issued a * Flash Flood Warning for... Riverside County in southern California... * Until 415 AM PDT. * At 117 AM PDT, Doppler radar indicated heavy rain across the warned area. The expected rainfall rate is 0.75 to 1 inch in 1 hour. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by heavy rain. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Indio, southeastern Palm Springs, Coachella, Palm Desert, Rancho Mirage, Thermal, Hwy 74 Between Anza And Palm Desert, La Quinta and Mecca.
What the agency told people to do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.
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