First published Oct 6, 2026, 7:58:15 PM UTC · Last updated Oct 6, 2026, 7:58:15 PM UTC

Extreme Heat Warning — NWS San Diego CA

Original source title

Extreme Heat Warning issued October 6 at 12:33PM PDT until October 8 at 8:00PM PDT by NWS San Diego CA

Reported by U.S. National Weather Service Alerts NWS

An Extreme Heat Warning for Orange County Coastal Areas is in effect until 8 PM PDT on October 8. The alert describes dangerously hot daytime temperatures and very warm nights, and includes guidance to reduce heat exposure.

At a glance

Affected location: Orange County Coastal Areas
An Extreme Heat Warning for Orange County Coastal Areas is in effect until 8 PM PDT on October 8.

Illustrative image: Hot Creek is in eastern California's Long Valley Caldera, a large depression formed about 760,000 years ago during a large eruption of the Long Valley Volcano. The eruption produced large volumes of ash, air-fall pumice, and pyroclastic flow pumice. As the name suggests, Hot Creek's valley has hot springs - hydrothermal water emerges at the surface along an intracaldera extension of the Hilton Creek Fault. The bedrock in the Hot Creek area includes the Hot Creek Rhyolite Flow, a sanidine-augite- — James St. John/Wikimedia Commons, CC BY 2.0

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Why it matters

The alert says heat-related illnesses increase significantly during extreme heat events and warns that unattended vehicles can become lethal for children and pets.

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 6/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 2/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 2/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 4/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Urgency: 7/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

U.S. National Weather Service Alerts NWS Extreme Heat Warning issued October 6 at 12:33PM PDT until October 8 at 8:00PM PDT by NWS San Diego CA

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