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EF0 tornado in St. Mary's County, Maryland

Tornado August 4, 2020 · St. Mary's County, Maryland

EF0
Rating
1.5 mi
Path length
75 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 75 yards (0.04 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF0 means. On the Enhanced Fujita scale, EF0 is light damage: shingles and siding peeled, gutters torn, branches broken, consistent with estimated gusts of 65–85 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

At 6:27 AM EDT, a tornado rated EF-0 caused damage near Scotland, MD.

The survey found tree damage along a portion of Point Lookout

Road between St. Gabriels Manor Way and Fresh Pond Neck Road.

First evidence of tornado touchdown was near the intersection of

St. Gabriels Manor Way and Route 5/Point Lookout Rd where numerous

tree limbs were down.

As the tornado moved north-northwest, numerous trees were snapped

or downed all along the 12800 block of Point Lookout Rd. An

entire row of cedar trees was pushed over behind one residence. A

resident who was home when the tornado passed over stated they

heard a violent roaring sound, the house visibly shook, and then

it was over in a matter of seconds. A row of trees behind the

residence was uprooted during this time.

The tornado lifted shortly before crossing Fresh Pond Neck Road at

Point Lookout Rd and then touched down further north near the

intersection of Curleys Rd and Point Lookout Rd knocking down a

tree on Curleys Rd. The tornado finally knocked down a tree on a

farm just northeast of the aforementioned intersection before

lifting at 6:31 AM EDT.

The wider storm

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.

Began near Scotland (38.0930, -76.3650).

Other tornadoes from the same storm system

3 more tornadoes the National Weather Service filed under this storm episode.

Source: NOAA Storm Events Database, event 901058. Narratives are written by the National Weather Service forecast office that issued the report.

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