Extreme Heat Watch Issued for Southern California Counties
An Extreme Heat Watch has been issued by the National Weather Service for coastal and valley regions of Southern California, in effect from Friday morning, October 2, through Wednesday evening, October 7. Dangerously hot conditions are expected, with temperatures reaching up to 108 degrees in some valley areas.
The watch, issued on September 30 by the National Weather Service in San Diego, covers the Orange County Coastal and Inland Areas, the San Bernardino and Riverside County Valleys (the Inland Empire), San Diego County Coastal Areas, San Diego County Valleys, and the Santa Ana Mountains and Foothills.
Forecasters warn of high temperatures ranging from around 90 degrees near the coast to the upper 90s to 108 degrees in the valleys. Overnight low temperatures are expected to remain warm, in the lower to mid-70s, starting over the weekend and continuing into next week for coastal areas and western valleys.
This long-duration heat wave is expected to bring Moderate or greater HeatRisk to coastal and valley areas, alongside Major to Extreme HeatRisk for inland coastal areas into western valleys. The National Weather Service notes that the potential for heat-related illnesses increases significantly during such extreme heat events.