Meteorologists and residents have reported rising tides and heavy winds — up to 40 mph in some places.

The flooding extensively damaged three floors of the main school building.

Even as Hurricane Sandy departs the region, the National Weather Service is warning that the Potomac River could flood starting this morning and into the next few days.

Things are getting worse: the National Weather Service now reports that the Potomac River and Rock Creek could top their banks.

A large thunderstorm provoked flash floods in Bloomingdale last night, bringing rising waters back to a neighborhood that has been frustrated by them various times throughout the summer.