MINNEAPOLIS (WCCO) — Summer heat and humidity gave way to some isolated, pop-up showers and subsequent flash flooding Sunday afternoon in parts of the east metro.

So much rain fell in parts of Ramsey and Washington counties that they were under a flash flood warning for several hours.

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Two-to-three inches fell in cities including St. Paul, Woodbury and Cottage Grove. The rains began at about 2 p.m., and remained stationary for about two hours.

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The heat and humidity levels will remain high Monday, and the threat of more widespread severe weather is expected. A system will move across the state in the overnight, and then another system will roll though central and southern Minnesota late Monday afternoon.

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More flash flooding is possible, as well as hail and high winds.

Lisa Meadows