Southern California is bracing for a dangerous heat wave this week, with temperatures expected to climb as high as 115 degrees in some areas.
The National Weather Service has issued an Excessive Heat Warning for Los Angeles County and surrounding regions, in effect from 11 a.m. Tuesday through 8 p.m. Friday.
Extreme temperatures are forecast across the Los Angeles region, including the Inland Empire and desert communities.
In L.A. County, the San Fernando Valley could reach highs of up to 110 degrees, while the Antelope Valley could see temperatures soar to 113 degrees. In the desert areas, such as Palm Springs and Joshua Tree, temperatures are anticipated to reach 115 degrees, making it one of the hottest weeks of the summer.
“The summer heat can be dangerous, and everyone should take the right steps to stay safe,” said Dr. Michael Sequeira, San Bernardino County Health Officer, who issued a heat advisory for his county. “Heat-related illnesses like heat exhaustion and heat stroke can be very serious, especially for those who are more vulnerable.”
Cooling Centers
As temperatures rise, L.A. has urged residents to plan and prepare to avoid heat exhaustion, particularly in vulnerable communities. Cooling centers have been established throughout the region to provide relief for those without air conditioning.
Residents can find the nearest cooling center by calling 311, checking the Cool Spots LA app, or visiting the city’s emergency management website.
“During this heat event, it’s crucial for Angelenos to stay cool and hydrated,” said a spokesperson for the Los Angeles Emergency Management Department. “If you don’t have access to air conditioning at home, we encourage you to visit a public library, recreation facility, senior center, or any public air-conditioned building near you.”
Residents are also reminded to stay indoors during peak heat hours, wear lightweight and loose-fitting clothing, and drink plenty of water. Those who work or exercise outdoors should take extra precautions, such as limiting strenuous activities to early morning or evening hours and taking frequent breaks in shaded or air-conditioned buildings.
Air Quality Concerns
In addition to the dangerous heat, the South Coast Air Quality Management District (AQMD) has warned of poor air quality due to elevated ozone levels, particularly in inland areas. The combination of high temperatures and stagnant air is expected to create a multi-day extreme smog event, affecting areas such as the Santa Clarita Valley, San Gabriel Valley, and San Bernardino Valley.
“The Air Quality Index (AQI) is predicted to reach Unhealthy or higher in several regions, which could pose serious health risks, especially for sensitive groups like children, the elderly, and those with respiratory conditions,” the AQMD said in a bulletin. “We advise residents to check air quality levels regularly and limit outdoor activities as necessary.”
Coastal areas are expected to experience lower ozone levels, but inland regions will likely see AQI levels rise to the Unhealthy category each afternoon.
Residents are also encouraged to conserve electricity, particularly during peak hours, to reduce strain on the power grid. The South Coast AQMD advises delaying the use of gasoline-powered equipment and household chemicals until evening to help improve air quality.
Health and Safety Tips
To minimize the risk of heat-related illnesses, officials recommend these precautions:
- Stay cool: Spend time in air-conditioned buildings, avoid direct sunlight, and limit outdoor activities, especially during the hottest parts of the day. Residents without air conditioning should seek refuge in public cooling centers.
- Stay hydrated: Drink more water than usual, and don’t wait until you’re thirsty to hydrate. Avoid beverages with high sugar, caffeine, or alcohol content, as they can contribute to dehydration.
- Look out for others: Check on neighbors, friends, and family members, particularly those who are elderly or young or have pre-existing health conditions. Ensure pets have plenty of water and shade, and never leave them or children in parked cars.
For non-emergency information, residents can call 311, and in the event of a suspected heat stroke, they are urged to call 911 immediately. Symptoms of heat-related illnesses include heavy sweating, weakness, dizziness, nausea, and, in severe cases, confusion or unconsciousness.
“Recognizing the early signs of heat exhaustion and acting quickly can save lives,” Dr. Sequeira said. “If you or someone you know starts feeling unwell due to the heat, don’t hesitate to seek medical attention.”