Los Angeles County was placed under an extreme heat warning by the National Weather Service on Wednesday at 9:41 a.m. The warning is in effect until Thursday Oct. 8, at 8 p.m.
The NWS Los Angeles/Oxnard CA informs, “Dangerously hot conditions with temperatures up to 99 degrees.”
“Heat related illnesses increase significantly during extreme heat events,” according to the NWS.
The full list of affected locations includes:
- Catalina/Santa Barbara Islands
- Santa Clarita Valley
- Malibu
- Los Angeles County Beaches
- Palos Verdes Peninsula
- Los Angeles County Inland Coast including Downtown Los Angeles
- Western Santa Monica Mountains Recreational area
- Eastern Santa Monica Mountains Recreational area
- Calabasas/Agoura Hills
- San Fernando Valley
- Santa Susana Mountains
- San Gabriel Valley
- Ventura County Beaches
- Ventura County Inland Coast
- Lake Casitas
- Ojai Valley
- Central Ventura County Valleys
- Southeastern Ventura County Valleys
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