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WHAT: Hot daytime conditions with high temperatures between 97 and 107 common. Warm overnight conditions will bring less relief than usual.
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WHERE: A portion of southwest California.
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WHEN: Until 8 PM PDT Monday.
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IMPACTS: There is a high risk for dangerous heat illness, especially for sensitive groups like the very young, the very old, those without air conditioning, and those active outdoors.
* WHAT...Hot daytime conditions with high temperatures between 97 and 107 common. Warm overnight conditions will bring less relief than usual. * WHERE...A portion of southwest California. * WHEN...Until 8 PM PDT Monday. * IMPACTS...There is a high risk for dangerous heat illness, especially for sensitive groups like the very young, the very old, those without air conditioning, and those active outdoors.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Ozone is forecast to reach 140 AQI - Unhealthy for Sensitive Groups on Thu 07/23/2026.
Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy exertion outdoors
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WHAT: The South Coast AQMD has issued an air quality alert due to harmful levels of ozone pollution. Visit https://www.aqmd.gov/alertinfo to check current and forecasted air quality levels.
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WHERE: in the South Coast Air Basin and Coachella Valley. Levels of ozone pollution can vary by time and location depending on emissions and air pollution transport.
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WHEN: until 8 PM Monday. The highest ozone levels typically occur in the afternoon and early-evening hours.
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IMPACTS: Ozone air pollution can cause serious health problems, including trouble breathing, asthma attacks, and lung damage. Everyone can be affected, but sensitive groups such as people with lung disease, older adults, people who are pregnant, children, and those who spend a lot of time outdoors are at greater risk.
* WHAT...The South Coast AQMD has issued an air quality alert due to harmful levels of ozone pollution. Visit https://www.aqmd.gov/alertinfo to check current and forecasted air quality levels. * WHERE...in the South Coast Air Basin and Coachella Valley. Levels of ozone pollution can vary by time and location depending on emissions and air pollution transport. * WHEN...until 8 PM Monday. The highest ozone levels typically occur in the afternoon and early-evening hours. * IMPACTS... Ozone air pollution can cause serious health problems, including trouble breathing, asthma attacks, and lung damage. Everyone can be affected, but sensitive groups such as people with lung disease, older adults, people who are pregnant, children, and those who spend a lot of time outdoors are at greater risk.
To protect your health, check air quality levels and act as needed:
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When Air Quality Index (AQI) levels are "Unhealthy for Sensitive Groups" (orange), sensitive groups as specified above should limit extended or intense outdoor activity.
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When AQI is "Unhealthy" (red), everyone may experience health impacts. Sensitive groups should avoid extended time outdoors.
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When AQI is "Very Unhealthy" (purple), sensitive groups should avoid all outdoor physical activity. Everyone else should avoid extended or intense outdoor activity.
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When AQI is "Hazardous" (maroon), everyone should avoid all outdoor physical activity.
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ADDITIONAL DETAILS:
To help keep indoor air clean when air quality is poor:
- Keep windows and doors closed
- Run your air conditioner and/or an air purifier
- Do not use whole house fans or swamp coolers that bring in outside air if you have other methods to stay cool
- Avoid other sources of pollution such as fireplaces, candles, incense, and grilling
To help minimize outdoor ozone air pollution levels:
- Limit the use of gasoline powered lawn and garden equipment until evening hours
- Try to delay trips to the gas station and the use of household chemicals until the evening
To protect your health, check air quality levels and act as needed: * When Air Quality Index (AQI) levels are "Unhealthy for Sensitive Groups" (orange), sensitive groups as specified above should limit extended or intense outdoor activity. * When AQI is "Unhealthy" (red), everyone may experience health impacts. Sensitive groups should avoid extended time outdoors. * When AQI is "Very Unhealthy" (purple), sensitive groups should avoid all outdoor physical activity. Everyone else should avoid extended or intense outdoor activity. * When AQI is "Hazardous" (maroon), everyone should avoid all outdoor physical activity. * ADDITIONAL DETAILS... To help keep indoor air clean when air quality is poor: * Keep windows and doors closed * Run your air conditioner and/or an air purifier * Do not use whole house fans or swamp coolers that bring in outside air if you have other methods to stay cool * Avoid other sources of pollution such as fireplaces, candles, incense, and grilling To help minimize outdoor ozone air pollution levels: * Limit the use of gasoline powered lawn and garden equipment until evening hours * Try to delay trips to the gas station and the use of household chemicals until the evening
Severe weather warnings are provided to meteoblue by more than 80 official agencies worldwide. meteoblue does not bear any responsibility regarding the actual content or nature of the warnings. Issues can be reported through our Feedback form and will be transmitted to the appropriate instances.
