MWS update at May 19, 2020 at 01:55PM

FRIDAY STORM NWS ANALYSIS: 1. Microburst in Pepperell 2. Same cell caused straight line wind damage through Groton to Westford PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 126 PM EDT TUE MAY 19 2020 ...NWS DAMAGE SURVEY FOR MAY 15, 2020 THUNDERSTORM WIND EVENT... . MICROBURST IN PEPPERELL, MASSACHUSETTS... LOCATION...PEPPERELL IN MIDDLESEX COUNTY, MA DATE...MAY 15 2020 ESTIMATED TIME...825 PM EDT ESTIMATED MAXIMUM WIND SPEED...100 MPH MAXIMUM PATH WIDTH...100 YARDS PATH LENGTH...0.3 MILES BEGINNING LAT/LON...42.6906N / 71.6069W ENDING LAT/LON...42.6931N / 71.6068W * FATALITIES...0 * INJURIES...0 ...SUMMARY... A MICROBURST WITH ESTIMATED WINDS OF 90-100 MPH PRODUCED SIGNIFICANT DAMAGE TO TREES AND HOMES IN A SMALL PART OF PEPPERELL. SEVERAL LARGE TREES WERE UPROOTED NEAR BROOKLINE STREET AND CHEYENNE ROAD, SOME ONTO HOUSES, AND TREES WERE SNAPPED ABOUT 2 TO 3 FEET FROM THEIR BASES FARTHER DOWN ON CHEYENNE ROAD NEAR ALGONQUIN ROAD. A COUPLE OF TREES WERE ALSO DOWNED ON GOSSELIN DRIVE AND SEMINOLE DRIVE. THE DAMAGE OBSERVED WAS DETERMINED TO BE FROM STRAIGHT-LINE WINDS AND NOT A TORNADO. A MICROBURST IS A NARROW DOWNBURST OF AIR FROM A THUNDERSTORM WITH A DAMAGE SWATH OF 2.5 MILES OR LESS. . WIND DAMAGE IN GROTON AND WESTFORD, MASSACHUSETTS... LOCATION...GROTON AND WESTFORD IN MIDDLESEX COUNTY, MA DATE...MAY 15 2020 ESTIMATED TIME...825 PM ESTIMATED PEAK WIND...90 MPH ...SUMMARY... WIND DAMAGE WAS ALSO OBSERVED IN GROTON AND WESTFORD FROM THE SAME STORM THAT PRODUCED THE MICROBURST IN PEPPERELL. A DRONE VIDEO SHOWED EXTENSIVE TREE DAMAGE NEAR COW POND CONSERVATION AREA IN GROTON, WITH THE VAST MAJORITY OF THE TREES BLOWN DOWN IN A STRAIGHT LINE. A WIND GUST TO 89 MPH WAS MEASURED AT MIT'S MILLSTONE FACILITY NEAR THE GROTON/WESTFORD LINE AND THE PUBLIC REPORTED A WIND GUST TO 86 MPH IN THEIR BACKYARD IN WESTFORD. * THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO CHANGE PENDING FINAL REVIEW OF THE EVENTS AND PUBLICATION IN NWS STORM DATA. THE NATIONAL WEATHER SERVICE WOULD LIKE TO THANK THE MEDIA, PUBLIC, AND SKYWARN AMATEUR RADIO OPERATORS FOR THEIR ASSISTANCE IN PROVIDING PICTURES AND VIDEO OF THE STORM DAMAGE. More info: https://ift.tt/2wr1YAI