Mmastodon EnvironmentWeather first seen 1 d ago, last 1 d ago, peak #5

October heat wave triggers extreme heat warnings across California

Original: Extreme Heat Warnings and Heat Advisories cover much of California as October heat wave persists Extreme Heat Warnings a

Extreme Heat Warnings and Heat Advisories covered a broad section of California on October 5, 2026, as a potentially record-breaking early-October heat wave persisted from Southern California across much of the state. Residents are being urged to limit outdoor activity, stay hydrated and check on vulnerable neighbours, with record October temperatures possible in some areas.

Why now: Unusually late-season, potentially record-breaking heat is affecting millions of Californians right now.

CaliforniaNational Weather ServiceSouthern California

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Evidence

• Extreme Heat Warnings and Heat Advisories cover much of California as October heat wave persists Extreme Heat Warnings and Heat Advisories covered a broad section of California on October 5, 2026, as potentially record-breaking early-October heat persisted from Southern… · uccawx@m.ai6yr.org · 1

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