33°30'N / 117°39'W / Altitude 31 m / 14:37 2026/08/25, America/Los_Angeles (UTC-7)
From: 2026/08/25, 12:19
To: 2026/08/25, 22:15
* WHAT...Dangerously hot conditions with high temperatures in the mid 90s to 105 expected. * WHERE...Santa Ana Mountains and Foothills. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Low temperatures 5 to 10 degrees above normal will limit relief from the heat. Increasing temperatures through Friday will increase the threat of heat-related illness across populations.
Orange
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
NWS San Diego CA
2026/08/25, 12:19From: 2026/08/25, 12:19
To: 2026/08/25, 22:15
* WHAT...Dangerously hot conditions with high temperatures in the mid 90s to 105 expected. Low temperatures will be mostly in the 70s. * WHERE...Orange County Inland Areas. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Low temperatures 5 to 10 degrees above normal will limit relief from the heat. Increasing temperatures through Friday will increase the threat of heat-related illness across populations.
OrangeDrink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.NWS San Diego CA2026/08/25, 12:19
From: 2026/08/25, 12:19
To: 2026/08/25, 22:15
* WHAT...High temperatures in the mid 80s near the beaches to the lower to mid 90s for higher coastal terrain expected. Low temperatures mostly in the 70s. * WHERE...Orange County Coastal Areas. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Hot temperatures may cause heat illnesses.
Orange County Coastal,OrangeDrink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.NWS San Diego CA2026/08/25, 12:19
From: 2026/08/25, 13:16
To: 2026/08/25, 21:30
* WHAT...Elevated surf of 4-6 feet with sets to 7 feet expected along with dangerous rip currents and minor coastal flooding. * WHERE...San Diego County coastal areas and Orange County coastal areas, particularly along south and southwest-facing beaches. * WHEN...From early Wednesday morning through Thursday evening. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. Flooding of low lying beach parking lots, boardwalks, and roads. * ADDITIONAL DETAILS...High tides peak around 6.2 to 6.5 feet from 8-10 PM PDT on Wednesday and Thursday.
Orange County Coastal,OrangeRemain out of the water to avoid hazardous swimming conditions.NWS San Diego CA2026/08/25, 13:16
From: 2026/08/24, 13:34
To: 2026/08/28, 20:00
* 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 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...from 1 PM Monday to 8 PM Friday. 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.
OrangeTo 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
For the latest air quality forecasts and information, visit the
website at aqmd.gov.NWS San Diego CA2026/08/24, 13:34