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NOAA's National Weather Service
Each location shows all alerts on one page
WARNINGS - WATCHES - ADVISORIES - STATEMENTS
Updates every 15 Minutes
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| Orange County | ||
| Effective: Thu, 7/23 10:14am | Severity: Moderate | |
| Updated: July 23, 2026 12:01 pm | Urgency: Expected | |
| Expires: Thu, 7/23 10:00pm | Certainty: Likely | |
| Areas Affected: Santa Ana Mountains and Foothills | ||
Alert
Details:
* WHAT...High temperatures as hot as the 90s to 105 and low temperatures as warm as the mid 70s to low 80s through the weekend expected. * WHERE...Santa Ana Mountains and Foothills. * WHEN...Until 8 PM PDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses. Information: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. |
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| Orange County | ||
| Effective: Thu, 7/23 10:14am | Severity: Moderate | |
| Updated: July 23, 2026 12:01 pm | Urgency: Expected | |
| Expires: Thu, 7/23 10:00pm | Certainty: Likely | |
| Areas Affected: Orange County Coastal | ||
Alert
Details:
* WHAT...High temperatures in the mid 80s to lower 90s for the mesas and other higher coastal terrain and low temperatures in the upper 60s to low 70s expected. * WHERE...Orange County Coastal Areas. * WHEN...Until 8 PM PDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses. Information: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. |
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| Orange County | ||
| Effective: Thu, 7/23 10:14am | Severity: Moderate | |
| Updated: July 23, 2026 12:01 pm | Urgency: Expected | |
| Expires: Thu, 7/23 10:00pm | Certainty: Likely | |
| Areas Affected: Orange County Inland | ||
Alert
Details:
* WHAT...High temperatures in the 90s and low temperatures in the upper 60s and lower 70s expected. * WHERE...Orange County Inland Areas. * WHEN...Until 8 PM PDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses. Information: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. |
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| Orange County | ||
| Effective: Thu, 7/23 1:21am | Severity: Moderate | |
| Updated: July 23, 2026 12:01 pm | Urgency: Expected | |
| Expires: Thu, 7/23 2:00pm | Certainty: Likely | |
| Areas Affected: San Diego County Coastal Areas - Orange County Coastal | ||
Alert
Details:
* WHAT...Surf of 5 to 7 feet expected. * WHERE...San Diego County Coastal Areas and Orange County Coastal Areas. * WHEN...Thursday morning through Sunday evening. * IMPACTS...Increased rip current risk and dangerous swimming conditions. Minor coastal flooding possible during evening high tides over the weekend with evening high tides 5.5 to 6.5 feet. Information: Remain out of the water to avoid hazardous swimming conditions. |
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| Orange County | ||
| Effective: Wed, 7/22 5:41pm | Severity: Unknown | |
| Updated: July 23, 2026 12:01 pm | Urgency: Unknown | |
| Expires: Thu, 7/23 5:45pm | Certainty: Unknown | |
| Areas Affected: San Bernardino and Riverside County Valleys-The Inland Empire - San Bernardino County Mountains - Coachella Valley - San Gorgonio Pass Near Banning - Orange County Inland | ||
Alert
Details:
* 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. Information: 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 |
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| Orange County | ||
| Effective: Wed, 7/22 5:40pm | Severity: Unknown | |
| Updated: July 23, 2026 12:01 pm | Urgency: Unknown | |
| Expires: Thu, 7/23 5:45pm | Certainty: Unknown | |
| Areas Affected: San Bernardino and Riverside County Valleys-The Inland Empire - San Bernardino County Mountains - Coachella Valley - San Gorgonio Pass Near Banning - Orange County Inland | ||
Alert
Details:
* 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. Information: 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 |
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