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PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
429 PM EDT MON AUG 23 2021

...NWS CONFIRMS A TOTAL OF 3 TORNADOES ON AUGUST 23 2021 FROM 
THE REMNANTS OF HENRI...

THE 3 TORNADOES WERE ALL SMALL AND BRIEF, AND PRODUCED MINIMAL
DAMAGE. AS IS COMMON WITH TORNADOES ASSOCIATED WITH TROPICAL
SYSTEMS, THEY WERE NOT ACCOMPANIED BY ANY THUNDERSTORMS, BUT
JUST RELATIVELY SMALL SHOWERS. ALL 3 TORNADOES WERE RATED EF-0. 
WE APPRECIATE THE ASSISTANCE OF MEMA ALONG WITH LOCAL EMERGENCY 
MANAGEMENT, FIRE AND POLICE OFFICIALS TO HELP WITH THE SURVEY
PROCESS, AS WELL AS THE PUBLIC, SPOTTERS AND AMATEUR RADIO 
VOLUNTEERS TO PROVIDE US WITH THE INITIAL INFORMATION ABOUT
THE TORNADOES. 

.EF-0 TORNADO IN MARLBOROUGH MASSACHUSETTS 
NOTE: THIS IS A REPEAT OF INFORMATION WE PREVIOUSLY RELEASED
AND IS INCLUDED TO AGAIN FOR COMPLETENESS OF THE RECORD.

START LOCATION...MARLBOROUGH IN MIDDLESEX COUNTY MA
END LOCATION...MARLBOROUGH IN MIDDLESEX COUNTY MA
DATE...AUGUST 23 2021
ESTIMATED TIME...1140 AM EDT
MAXIMUM EF-SCALE RATING...EF-0
ESTIMATED MAXIMUM WIND SPEED...65 MPH
MAXIMUM PATH WIDTH...10 YARDS
PATH LENGTH...0.75 MILE
BEGINNING LAT/LON...42.311/-71.577
ENDING LAT/LON...42.320/-71.586
* FATALITIES...0
* INJURIES...0

...SUMMARY...
A SMALL, BRIEF TORNADO TOUCHED DOWN JUST WEST OF I-495 
NEAR THE MARLBOROUGH WATER TREATMENT CENTER, WENT OVER A
BUSINESS PARK AND TRAVELED NORTHWEST A SHORT DISTANCE BEFORE
DISSIPATING JUST NORTH OF CEDAR HILL STREET. SEVERAL EYEWITNESSES 
REPORTED SEEING TREE BRANCHES LOFTED INTO THE AIR. THE TORNADO 
ALSO TOOK DOWN A TREE ON CEDAR HILL STREET WHICH FELL ON 2 CARS,
WITH DAMAGE TO ONE OF THEM. SEVERAL PEOPLE ALSO FILMED THE 
TORNADO AND POSTED VIDEO ON SOCIAL MEDIA. 

.EF-0 TORNADO IN BOLTON MASSACHUSETTS...

START LOCATION...BOLTON IN WORCESTER COUNTY MA
END LOCATION...BOLTON IN WORCESTER COUNTY MA
DATE...AUGUST 23 2021
ESTIMATED TIME...1230 PM EDT
MAXIMUM EF-SCALE RATING...EF-0
ESTIMATED MAXIMUM WIND SPEED...60-65 MPH
MAXIMUM PATH WIDTH...50 YARDS
PATH LENGTH...0.1 MILE
BEGINNING LAT/LON...42.438/-71.565
ENDING LAT/LON...42.439/-71566
* FATALITIES...0
* INJURIES...0

...SUMMARY...
A SMALL BRIEF TORNADO TOUCHED DOWN, CAUSING MINOR DAMAGE BETWEEN
ROUGHLY 175 AND 198 MAIN STREET. ONE TREE WAS KNOCKED DOWN INTO
WIRES, AND A LARGE BRANCH WAS RIPPED FROM ANOTHER TREE. IT IS 
BELIEVED THAT A FUNNEL CLOUD INITIALLY FORMED A SHORT DISTANCE 
TO THE SOUTHEAST OF WHERE THE DAMAGE WAS OBSERVED, AND AS IT MOVED
NORTHWEST, IT BRIEFLY TOUCHED DOWN. RADAR DATA INDICATED ROTATION
ASSOCIATED WITH A SHOWER THAT MOVED OVER THE AREA TO BE VERY
SIMILAR TO WHAT WAS OBSERVED WITH THE MARLBOROUGH TORNADO. 


.EF-0 TORNADO IN STOW MASSACHUSETTS...

START LOCATION...STOW IN MIDDLESEX COUNTY MA
END LOCATION...STOW IN MIDDLESEX COUNTY MA
DATE...AUGUST 23 2021
ESTIMATED TIME...110 PM EDT
MAXIMUM EF-SCALE RATING...EF-0
ESTIMATED MAXIMUM WIND SPEED...65-70 MPH
MAXIMUM PATH WIDTH...50 YARDS
PATH LENGTH...0.1 MILES
BEGINNING LAT/LON...42.434/-71.497
ENDING LAT/LON...42.436/-71.499
* FATALITIES...0
* INJURIES...0

...SUMMARY...
A SMALL BRIEF TORNADO TOUCHED DOWN, CAUSING MINOR DAMAGE ALONG
GREAT ROAD (STATE HIGHWAY 117) VERY NEAR THE STOW POLICE DEPARTMENT
HEADQUARTERS. THIS TORNADO KNOCKED DOWN A LARGE TREE AS WELL
AS A LARGE BRANCH WHICH FELL ACROSS THE ROAD. SIMILAR TO THE
SMALL BOLTON TORNADO, IT IS BELIEVED A FUNNEL CLOUD FORMED TO
THE SOUTHEAST OF THE AREA, AND BRIEFLY TOUCHED DOWN AS IT MOVED
NORTHWEST. 

&&

EF SCALE: THE ENHANCED FUJITA SCALE CLASSIFIES TORNADOES INTO THE
FOLLOWING CATEGORIES:

EF0...WEAK......65 TO 85 MPH
EF1...WEAK......86 TO 110 MPH
EF2...STRONG....111 TO 135 MPH
EF3...STRONG....136 TO 165 MPH
EF4...VIOLENT...166 TO 200 MPH
EF5...VIOLENT...>200 MPH

NOTE:
THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO
CHANGE PENDING FINAL REVIEW OF THE EVENTS AND PUBLICATION IN NWS
STORM DATA.

$$

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