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.

There is nothing unknown about what triggered the brutal Hill Country flood of 2025 and so many others dating back to the ...