Potentially powerful thunderstorm moves into West Valley

PHOENIX — A potentially powerful thunderstorm moved into the West Valley on Friday afternoon, the National Weather Service said.

The slow-moving storm was tracked over Surprise Stadium, near Sun City West, at around 3 p.m.

Significant Weather Advisory for Maricopa County until 330 PM MST. https://t.co/mLFi9EQ3PP #azwx #cawx pic.twitter.com/Mw5fwBUscG

— NWS Phoenix (@NWSPhoenix) August 17, 2018

However, around 4:30 p.m., NWS tweeted that there wasn’t much movement east of Tonopah on the Interstate 10.

Whelp…not much going on unless you’re west of Tonopah on the 10. #azwx pic.twitter.com/M6H0TsYta6

— NWS Phoenix (@NWSPhoenix) August 17, 2018

Other areas that could be impacted included Glendale, Surprise, El Mirage, Youngtown, Sun City, Waddell, Arrowhead Mall and Luke AFB.

Winds in excess of 40 mph were possible with the storm, with the possibility of blowing dust reducing visibility.

Earlier, a flash flood warning was issued for parts of western Maricopa County and beyond, including Wickenburg, Wittmann and Morristown. That warning was set to expire at 6 p.m.

Flash Flood Warning including Wickenburg AZ, Wittmann AZ, Morristown AZ until 6:00 PM MST pic.twitter.com/aFhecOCoOW

— NWS Phoenix (@NWSPhoenix) August 17, 2018

Thunderstorm chances were forecast to decrease throughout the region into the weekend, with above-normal temperatures returning by Sunday, when it could reach 110 degrees.

Monsoon activity was expected to return by Tuesday.

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