EF0 tornado in St. Mary's County, Maryland

At 6:32 AM EDT, a tornado rated EF-1 formed soon after the storm

moved northwest of Piney Point, MD. Consistent tree damage began

along Piney Point Road between Tall Timbers and Valley Lee. An

aerial survey was conducted, and a path of snapped and uprooted

trees about 75 to 100 yards wide was noted extending to the

northwest through the woods and fields of rural St. Marys

County. Some roads having multiple trees downed along this path

included Blake Creek Road, Richey Road, and Medleys Neck Road.

Homes were damaged by falling trees, including one along Medleys

Neck Road near the intersection with Scarlet Tanager Way.

The tornado crossed Route 5/Point Lookout Road near the

intersection with Lightfoot Way. Here there was also significant

tree damage. Large trees were uprooted damaging a shed and a home.

A mobile home/camper was blown over on its side. The tornado then

dissipated at 6:41 AM EDT.

Tropical Storm Isaias moved up the east coast, passing through southern Maryland on the morning of Tuesday, August 4th, 2020, spawning several tornadoes as well as flooding rain and tropical storm force winds.

Storm total rainfall ranged from 2 to 4 inches near Interstate 95 to as much as 9 inches in Calvert County east of Interstate 95. The heavy rain led to numerous incidents of flooding and flash flooding, especially near and east of Interstate 95.

The highest sustained wind of 46 knots was reported at Bishops Head and the highest peak gust of 63 knots was also reported at Bishops Head.

There were three tornadoes associated with Isaias over southern Maryland and there were also numerous reports of downed trees from tropical storm force winds, especially near and east of Interstate 95.

A storm surge of 1 to 2 feet occurred along the western shore of the Chesapeake Bay and the shore of the Tidal Potomac River. This did result in minor tidal Flooding in Washington DC.