Flash flood warnings were issued for Riverside County, Southern California, following weather alerts from the National Weather Service.

The entities involved

• National Weather Service →

  U.S. forecasting agency of the National Oceanic and Atmospheric Administration

  • Rainfall caused flooding in Jefferson County, involving the National Weather Service.Mon 17:45
  • El Nino is causing global weather patterns to bring heat and dryness to various regions, testing global food output.Mon 16:37
• Southern California →

  geographic and cultural region

  • HNTB was recognized by the Los Angeles Business Journal, which noted its service to Southern California communities, its roots in Pasadena, and its leadership structure.Mon 14:08
  • El Niño drives sea level rise and coastal erosion in Southern California.Mon 12:57
• Riverside County →

  county in California, United States

  • Potential special district to fund childcare services has been proposed in areas including Riverside County, Moreno Valley, and Perris.Mon 06:36
  • A new doctoral program is being established to address the high resident to physician ratio and provider shortages in Inland Empire and surrounding counties.Sat 17:08

Related events

• Extreme heat warnings are in effect for Riverside County, issued by the National Weather Service.Aug 26
• Coastal flood warnings are in place, affecting Long Beach, Orange County, and the wider Southern California coastline, impacting residents like Hudson.Jun 17
• The National Weather Service forecasts weather patterns affecting the Southern California region.Fri 04:08
• Flash flood warnings were issued by the National Weather Service for an affected county due to intense rainfall on September 20, 2026.Sep 21
• Los Angeles County is monitoring potential El Niño patterns and managing regional risks.Sep 2