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036>040-050>057-501>508-WVZ050>053-055-501>506-060600-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
526 PM EDT WED MAY 5 2021

...NWS DAMAGE SURVEY FOR 05/03/21 TORNADO IN MT. PLEASANT MD...

RATING:                 EF-1
ESTIMATED PEAK WIND:    90 MPH
PATH LENGTH /STATUTE/:  0.8 MILES
PATH WIDTH /MAXIMUM/:   200 YARDS
FATALITIES:             0
INJURIES:               0

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

NARRATIVE:

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
TORNADO PATH.

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
FOLLOWING CATEGORIES:

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
EF5.........>200 MPH

$$

ADM/CAS/SMZ

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