EF0 tornado in Calvert County, Maryland

One of four confirmed tornadoes spawned by Tropical Storm Isaias

over lower southern Maryland touched down along Point Patience Drive

between the Navy Recreation Center Solomons Fishing Pier and Third

Cove. The tornado tracked northeastward roughly along Patuxent

Drive, uprooting and snapping numerous trees along its path. The

trees fell in a convergent manner over a path of nearly one mile

long and about 175 yards wide, indicating a tornadic circulation was

in contact with the ground. Two recreational vehicles on the Navy

facility were smashed by falling trees. Fortunately there were no

occupants at the time. Trees fell on numerous recreational

facilities on the compound, and damage was noted to outdoor

umbrellas at the pool which were rated for hurricane force winds.

NWS 88D Doppler Radar, as well as the FAA Terminal Doppler Weather Radars

TDCA and TADW all indicated strong rotation over this area.

The tornadic damage ended near the north end of the Naval facility,

and no damage was noted in the adjacent residential community to the

north. Many other scattered trees were knocked down all across

Calvert County and lower southern Maryland due to winds associated

with Tropical Storm Isaias.

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.