Record-breaking temperatures are possible late this week when already intense heats builds in Southern California, where parts of Los Angeles and other areas will be under extreme heat and red flag warnings.

What authorities described as a severe heat event with days of temperatures in the upper 90s and well into the 100s will began Wednesday and will continue through the weekend.

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"This is dangerous heat headed for Southern California," said NBCLA meteorologist Belen De Leon . "High pressure, which is warm, stable air, is starting to sneak into our area. It's not going to budge anywhere.

"We won't see much relief until next week."

Heat illness risks usually reserved for desert areas will be more widespread, De L

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