Rising water floods Marginal at Hanover Street after heavy rains Wednesday. Yoon S. Byun/Staff Photographer

Floodwaters swamp the intersection of Preble Street and Marginal Way on Wednesday night. Yoon S. Byun/Staff Photographer

Will Murphy and Jared Entwistle walk through floodwaters and light rain along Marginal Way after heavy rains Wednesday. Murphy and Entwistle started the evening at Three Dollar Deweys with friends, not pictured, but left through the back entrance when the heavy floods blocked the front entrance. They said that they wanted to see what was happening and helped stalled cars along the way. Yoon S. Byun/Staff Photographer

Flash flooding hit the corner of Park Avenue and Mellen Street, near Deering Oaks in Portland, after downpours dropped at least 3 inches of rain on Wednesday night.

A van is stranded along Franklin Avenue and Marginal Way after downpours in Portland on Wednesday night.

A driver gets help after her car stalled in deep water on Pearl Street in Portland. Flash flooding affected roads around southern Maine after heavy rains on Wednesday night.

Flash flooding at York and High streets Wednesday night. WCSH6/Nathaniel Sheedy