Severe · Extreme Heat WarningActive alert

Extreme Heat Warning issued September 10 at 4:00AM PDT until September 10

Affecting Orange County Inland

In effect until: Sep 11, 2026, 3:00 AM

Orange County Inland

Likely impact; effects through 3:00 AM.

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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* WHAT...Dangerously hot conditions with high temperatures in the 90s
to around 100 expected.

* WHERE...Orange County Inland Areas.

* WHEN...Until 8 PM PDT this evening.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.

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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™

Extreme Heat Warning issued September 10 at 4:00AM PDT until September 10

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