The extreme weather that began in Ranson, WV on Monday May 3 produced a long path of damage. We tracked this cell for about 80 miles over 4 hours with continuous tornado warnings even into Baltimore County MD.
A second tornado touchdown was confirmed from this cell, this time in Frederick County MD.
The National Weather Service (NWS) survey has produced a report with another EF-1 tornado that was on the ground for just under 1 mile between Libertytown and Mt. Pleasant, MD. This was just south of Rt 26 and had top wind speeds of 90 mph.
…NWS DAMAGE SURVEY FOR 05/03/21 TORNADO IN MT. PLEASANT MD…
ESTIMATED PEAK WIND: 90 MPH
PATH LENGTH /STATUTE/: 0.8 MILES
PATH WIDTH /MAXIMUM/: 200 YARDS
START DATE: MAY 3, 2021
START TIME: 8:14 PM EDT
START LOCATION: MT PLEASANT MD
START LAT/LON: 39.4520 / -77.2922
END DATE: MAY 3, 2021
END TIME: 8:16 PM EDT
END LOCATION: MT. PLEASANT MD
END LAT/LON: 39.4560 / -77.2785
NWS NARRATIVE (Report):
A SUPERCELL THUNDERSTORM PRODUCED A TORNADO DURING THE EVENING
HOURS OF MONDAY, MAY 3RD IN A RURAL AREA OF FREDERICK COUNTY, MD,
BETWEEN MT PLEASANT AND LIBERTYTOWN. AN ESTIMATED 150 TREES WERE
UPROOTED, SNAPPED OR DAMAGED ALONG THE PATH OF THE TORNADO THAT
MOVED IN AN EAST-NORTHEAST DIRECTION FOR APPROXIMATELY THREE-
QUARTERS OF A MILE.
TREE DAMAGE FROM THIS TORNADO BEGAN NEAR A RESIDENCE IN THE 10800
BLOCK OF OLD ANNAPOLIS ROAD, WITH A FEW SNAPPED LARGE BRANCHES
THAT FELL ACROSS OLD ANNAPOLIS ROAD. THE TORNADO TRACKED EAST-
NORTHEAST ACROSS A LARGE GROUPING OF TREES BETWEEN OLD ANNAPOLIS
ROAD AND CHESTNUT GROVE ROAD, DAMAGING APPROXIMATELY 90-100 TREES
WITH MULTIPLE LARGE BRANCHES SNAPPED, TREES UPROOTED AND TRUNKS
SNAPPED IN VARYING DIRECTIONS.
AS THE TORNADO CROSSED CHESTNUT GROVE ROAD JUST NORTH OF ALTON
ROAD, A LARGE AMOUNT OF TREE DAMAGE OCCURRED, WITH AN ESTIMATED
40-50 TREES UPROOTED IN MULTIPLE DIRECTIONS WHILE ABOUT 20 TREES
WERE SNAPPED. ISOLATED TREE DAMAGE WAS NOTED OUTSIDE OF THIS PATH
ON THE SOUTHERN EXTENT OF THE TORNADO PATH, WITH A FEW TREE SNAPS
NOTED. NO STRUCTURAL DAMAGE WAS OBSERVED ANYWHERE ALONG THE
AS THE TORNADO MOVED FURTHER EAST-NORTHEAST AND AWAY FROM
CHESTNUT GROVE ROAD, IT LIFTED, AS NO DAMAGE WAS EVIDENT OR
REPORTED ALONG WHAT WOULD HAVE BEEN A CONTINUATION OF THE
TORNADO’S PATH. SPORADIC, STRAIGHT-LINE WIND DAMAGE WAS NOTED
FURTHER NORTHEAST NEAR LIBERTYTOWN.
THE NATIONAL WEATHER SERVICE WOULD LIKE TO THANK FREDERICK
COUNTY’S DIVISION OF EMERGENCY MANAGEMENT FOR THEIR ASSISTANCE
WITH THIS SURVEY.
EF SCALE: THE ENHANCED FUJITA SCALE CLASSIFIES TORNADOES INTO THE
EF0………65 TO 85 MPH
EF1………86 TO 110 MPH
EF2………111 TO 135 MPH
EF3………136 TO 165 MPH
EF4………166 TO 200 MPH
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