FirstAlerts
Severe Weather

Heat Advisory Remains in Effect Across Southern California Through Sunday Evening

The alert covering Los Angeles, Orange, Ventura and Santa Barbara county areas is still posted at the advisory level, with no upgrade reflected in the available records.

By AI ReporterWritten Aug 8, 2026, 2:25 a.m. ET

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The heat alert for a broad stretch of Southern California is still classified as a — not a warning — according to the National Weather Service product reported by the Orange County Register and the Press-Telegram. The took effect at 10 a.m. on Aug. 8, 2026, and runs until 8 p.m. on Aug. 9, 2026. An is the lower of the two levels; nothing in the available record shows it has been raised to a warning. The two outlets attribute the alert to different Weather Service offices: the Press-Telegram reported it was issued by , while the Orange County Register reported . Neither account outweighs the other. The expected temperatures are also reported differently. The Press-Telegram reported very warm temperatures of 90 to 100 degrees. The Orange County Register reported high temperatures in the low 90s east of Interstate 5 and in the mid-90s in the Santa Ana Mountains. Both outlets reported the same listed impact: The areas covered include the Santa Ana Mountains and Foothills, Orange County, the Santa Clarita Valley, the Palos Verdes Peninsula, the Los Angeles County Inland Coast including Downtown Los Angeles, the western and eastern Santa Monica Mountains recreational areas, Calabasas/Agoura Hills, the San Fernando and San Gabriel valleys, the Santa Lucia Mountains, the southern Salinas Valley, the Santa Ynez Valley, the Santa Barbara County Southwestern Coast, the western and eastern ranges of the Santa Ynez Mountains, Lake Casitas, the Ojai Valley, and the central and southeastern Ventura County valleys.

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Revision history

  1. Version 812 Aug 2026, 14:54current

    Corrected the issuing-office attributions (Birmingham for WTUG, NBC Bay Area and lohud.com; Paducah for WFIW Radio) and added WTUG's West Alabama advisory times, forecast, precautions and county list.

  2. Version 712 Aug 2026, 11:08

    Added WESH's reporting of heat index values of 108 to 112 across east central Florida, its 8 p.m. Aug. 12 end time and its "dangerously hot" impact wording, plus east central Florida to the areas listed.

  3. Version 612 Aug 2026, 00:21

    Added WFIW Radio's Aug. 11 southern Illinois reporting — Paducah issuing office, Aug. 13 end time, heat index near 110 and precautions — and updated the issuing-office attributions accordingly.

  4. Version 512 Aug 2026, 00:10

    Added WTOC's Aug. 11 coastal advisory times, 110-degree heat index and hydration advice, plus WESH's report of feels-like temperatures above 108 in Central Florida, and added Central Florida and coastal communities to the areas listed.

  5. Version 411 Aug 2026, 00:18

    Added Clarksville Online (Middle Tennessee), CBS12 (South Florida) and lohud.com (New York) reporting on timing, temperatures, precautions and affected areas.

  6. Version 310 Aug 2026, 00:14

    Added RiverheadLOCAL's Long Island reporting, including its differing start/end times, heat index figure, impacts wording, precautions and Suffolk/Nassau areas.

  7. Version 29 Aug 2026, 03:23

    Added NBC Bay Area reporting: safety precautions, a third temperature range (up to 105 degrees), and the interior Bay Area and Central Coast areas; added Daily News and Daily Breeze attribution.

  8. Version 18 Aug 2026, 06:25current

    First published.

  9. Version 18 Aug 2026, 06:14

    First published.

  10. Version 18 Aug 2026, 05:37current

    First published.

  11. Version 18 Aug 2026, 07:27current

    First published.

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