The Orange County and Santa Ana Mountains area is under an extreme heat warning which was released by the National Weather Service on Monday at 10:37 a.m. The warning is valid from Wednesday 10 a.m. until Thursday July 16, at 8 p.m.
The NWS San Diego CA informs, “Hot and humid conditions with elevated overnight temperatures. Temperatures will be in the 90s for inland Orange County and in the mountains below 6000 feet, 90s to near 100 in the San Diego County valleys, and 100 to 110 for the Inland Empire.”
“Heat related illnesses increase significantly during extreme heat events. Those spending long periods outdoors will be at greater risk for heat health impacts,” the NWS said.
The full list of affected locations includes:
Santa Ana Mountains/Foothills
Orange County
San Bernardino and Riverside County Valleys
San Diego County Inland Valleys
San Bernardino County Mountains
Riverside County Mountains
San Diego County Mountains
San Gorgonio Pass Near Banning
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