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The National Weather Service issued an extreme heat warning at 12:29 a.m. on Thursday valid from Friday 10 a.m. until Thursday Oct. 8, at 8 p.m. for Orange County.
The NWS San Diego CA informs, “Dangerously hot conditions with high temperatures in the mid to upper 90s expected. Nights will be very warm with low temperatures mostly in the lower to mid 70s.”
“Heat related illnesses increase significantly during extreme heat events,” the NWS said.

Emergency alerts in Southern California
For “considerable or catastrophic” hazards, emergency alerts will be sent to all enabled mobile phones in the area. To monitor lesser risk, residents are advised to sign up for county alert systems and to monitor agencies’ social media. How to sign up for alerts in your area:
Staying safe in high temperatures
Safety tips from the Environmental Health and Safety office at UC Irvine:
- Drink water: Drinking plenty of water frequently is vital for those exposed to heat. An individual may produce as much as 2 to 3 gallons of sweat per day. To replenish that fluid you should drink 3 to 4 cups of water every hour.
- Take breaks: Taking breaks in a cool shaded area and allowing time for recovery from the heat during the day are effective ways to avoid heat-related illness.
- Avoid some beverages: Avoid or limit the use of alcohol and caffeine during periods of extreme heat. Both dehydrate the body.
- Stop and rest: If you start to feel symptoms such as nausea, dizziness, weakness or unusual fatigue, rest in a cool shaded area. If symptoms persist or worsen seek immediate medical attention.
- Clothing: Whenever possible, wear clothing that provides protection from the sun but allows airflow to the body. Protect your head and shade your eyes when outdoors.
- Be prepared: When in the heat be sure to pay extra attention to those you’re with and be sure you know how to call for medical attention.
For information about cooling centers operated by Los Angeles, Orange, Riverside and San Bernardino counties, see https://ready.lacounty.gov/heat/, https://ocgov.com/cooling-centers, https://capriverside.org/cool-centers and DPH.
For more local weather alerts, visit our Weather Advisory page
This article was generated by software that analyzes National Weather Service warnings and advisories and creates an article based on templates created by humans. Our data comes from publicly available information. You can report errors to online@scng.com
