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July 29, 2009 Severe Thunderstorms

Microburst /Straight Line Wind Damage/ Confirmed Near Harris In Sullivan County New York

  • Location - Harris in Sullivan County New York
  • Date - August 21, 2009
  • Estimated time - Noon
  • Estimated Maximum Wind Speed - 80 mph
  • Maximum Path Width - 100 yards
  • Path Length - 0.25 miles
  • * fatalities - 0
  • * injuries - 0
The information in this statement is preliminary and subject to change pending final review of the event(s) and publication in nws storm data.

Summary The National Weather Service in Binghamton, NY has confirmed a microburst /straight line wind damage/ near Harris in Sullivan County New York on August 21, 2009.

A swath of damage associated with a microburst was surveyed by the National Weather Service on Monday, August 24, 2009. The damage occurred around noon on the 21st. Numerous trees were downed in the area. The damage occurred in an area containing several small cottages. Some of the cottages sustained significant damage from the falling trees. The survey indicated that the trees all fell toward the southeast, indicating that the damage occurred with a strong, straight-line northwesterly wind.

For reference: A Microburst is a convective downdraft with an affected outflow area of less than 2 1/2 miles wide and peak winds lasting less than 5 minutes. Microbursts may induce dangerous horizontal/vertical wind shears, which can adversely affect aircraft performance and cause property damage. Straight-line winds are generally any wind that is not associated with rotation, used mainly to differentiate them from tornadic winds.

Below are images from the storm survey.

Harris area damage.
Panoramic view of the cottage area.
Harris area damage.
Trees down on cottage. Powerlines were knocked down but fixed by the time the photo was taken.
Harris area damage.
Trees on another cottage.
Harris area damage.
Trees down on barn.
Harris area damage.
Trees down.
Harris area damage.
Trees down in another section of the cottage area.
Harris area damage.
Trees down in another section of the cottage area.

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Page last modified: August 25, 2009