Phoenix weather: Heat wave ends, storms return

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By Catherine Holland By Catherine Holland

PHOENIX -- After more than a week under an Excessive Heat Warning, Valley residents got a cool treat Tuesday night and Wednesday morning.  Late-night thunderstorms and rain cooled the Valley to the 70s and prompted the National Weather Service to cancel the heat warning that was in effect for today.

Most parts of the Valley didn't get much rain.  At Sky Harbor, the official total was 0.05 inch.  High winds briefly knocked out power to parts of Central Phoenix. 

Further south in Maricopa, rainfall totals exceeded 1.5 inch and lightning started at least two fires

Wednesday morning, the cooler air overnight caused an inversion, with moisture clinging to dust particles and becoming trapped near the surface.  This caused a thick haze that briefly delayed inbound flights at Sky Harbor Airport. 

Temperatures are expected to warm to about 106 degrees this afternoon under partly sunny skies, and there is another chance of storms today and tonight. 

In fact, there is a chance of storms all the way through the weekend, with highs of only 100 degrees by then, as well.  Overnight lows should drop to the 80s. 

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