Thunderstorm Wind in Westmoreland County, Pennsylvania

Thunderstorm Wind September 28, 2019 · Westmoreland County, Pennsylvania

55 mph

Estimated gust (48 kt)

Injuries

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Various reports of trees and wires down in the area. Emergency responders confirmed a pop-up tent blew away and hit people during the storms in the 6000 block of Beighley Road. One person was taken to the hospital. Five others were injured.

Story: https://www.wpxi.com/news/top-stories/severe-storms-cause-major-hail-damage-downed-trees-and-power-lines-across-western-pa/991460051.

The wider storm

An arcing cold front extended from eastern New York into central Pennsylvania westward into central portions of Indiana. It passed through our region the evening of September 28th. Near and ahead of this boundary, diurnal heating pushed surface temperatures into the 80s. This, in conjunction with a moist warm sector (dew points

into the mid 60s) resulted in 1000 to 1500 J/kg mixed-layer CAPE. A strengthening westerly flow field with height probably enhanced wind shear and created hail.

Began near Murrysville (40.4300, -79.7000).

Source: NOAA Storm Events Database, event 852397. Narratives are written by the National Weather Service forecast office that issued the report.

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