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Big changes [are] coming ... as high pressure over Arizona expands west into Southern California,' the weather service warns.
A triple-digit heat wave arrives in Southern California on Wednesday, affecting inland communities, increasing health ...
Los Angeles and Southern California will heat up as the first heat wave of the summer arrives this week.
UCLA researchers have released an alarming new finding — the duration of heat waves is increasing faster than global warming ...
A study released by UCLA on Monday suggests that the world's heat waves are not only increasing in frequency but getting ...
‘Mini heat wave’ descends on Southern California Katie Torres cool off her son Augustine Torres in the splash pool at La Pintoresca Park in Pasadena on Wednesday, July 9, 2025.
A moderately strong heat wave is taking shape inland, but its reach will be uneven and the coast may barely feel it at all.