Thunderstorm Wind — Montour, Pennsylvania

2017-08-04 · near Danville, Montour, Pennsylvania

Event narrative

A severe thunderstorm producing winds estimated near 60 mph knocked down trees near Danville.

Wider weather episode

A line of pre-frontal convection developed well ahead of an approaching cold front in a moderate CAPE and moderate shear environment over central Pennsylvania during the afternoon of August 4, 2017. This line of storms produced numerous reports of wind damage, and a brief EF1 tornado formed with a cell on the southern portion of this line in Fulton County, PA. Heavy rainfall also accompanied the storms. Flash flooding occurred across Cumberland County on the evening of the 4th.

View location on OpenStreetMap → (40.9728, -76.6070)

Source: NOAA Storm Events Database, event_id 710710. Narrative written by the NWS forecast office that issued the report.