Boating and other recreational activities on the upper Potomac River should be avoided because of hazardous water levels, the Maryland Natural Resources Police said.
Water levels are hazardous for recreational use along the main stem of the Potomac from Harpers Ferry downriver to Little Falls, and at Millville on the Shenandoah River, a natural resources police news release said.
River levels are expected to gradually fall, but conditions throughout the Potomac River basin are expected to remain hazardous until Friday.
Conditions also are hazardous on the Potomac's tributaries.
For the latest information on river conditions, call the National Weather Service at 1-703-260-0305.