Event Brief
SoCal heat wave timeline: humidity, fire risk, cooldown
By The BriefBrief · Sources (2)
Filed: Aug 28, 2026 at 11:00 AM ET
Summary: Extreme heat and tropical humidity are expected to keep severe weather threats across Southern California through Friday, with fire risk and thunderstorm potential remaining elevated. Thursday highs included 98°F in Van Nuys, 94°F in Burbank and Fullerton, and 93°F in Santa Ana, before a weekend relief system arrives.
WHO: National Weather Service forecasters
WHAT: A heat wave with extreme humidity is maintaining elevated fire risk and thunderstorm potential, with a weekend cooldown expected after severe conditions through Friday.
WHEN: Aug 28, 2026 at 10:04 AM ET
WHERE: Southern California
WHY: Lingering tropical moisture combined with high temperatures continues to elevate fire risk and thunderstorm potential.
ℹ️ This event is analyzed using pattern arcs, velocity indicators, and source analysis in our MI Console.
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