A flash flood warning was issued by the National Weather Service in Tucson at 3:44 p.m. on Tuesday, July 22. This warning applies to Pima.

KOAT Chief Meteorologist Byron Morton provided an explainer on what they mean and what those in impacted areas should do.

A combination of upper level energy, and monsoon moisture, will lead to widespread showers and thunderstorms during the afternoon. This will lead to a localized flash flood concern.

Tuesday will be stormy and cloudy with morning showers and a high of 87 and afternoon thunderstorms in the forecast.

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The National Weather Service in Wilmington, Ohio, says thunderstorms heading toward Columbus bring risk of flooding in some areas.

A flash flood warning was issued by the National Weather Service on Saturday at 6:15 p.m. in effect until 9:15 p.m. for Limestone and Madison counties.

Around 11 million Americans are under flood alerts as a "ring of fire" weather pattern will continue to impact the eastern two-thirds of the country through the weekend.

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