Flash Flood — Montour, Pennsylvania

2017-07-24 · near Mansdale, Montour, Pennsylvania

Event narrative

Roads were reported flooded in Mooresburg and elsewhere across Montour County. Mudslides were also reported. US 11 and SR 54 was reported closed due to flash flooding. Railroads were also reported closed due to flooded railroad crossings. A section of the railroad bed was washed out on River Road.

Wider weather episode

Scattered showers and storms developed in a moderate CAPE / moderate shear environment across the middle Susquehanna Valley, and a handful of wind damage reports were received from this area. Additionally, an isolated supercell produced a brief EF0 tornado formed near Klines Grove in Northumberland County. Flash Flooding occurred in Montour, Columbia and Northumberland Counties.

View location on OpenStreetMap → (40.9882, -76.6104)

Source: NOAA Storm Events Database, event_id 713029. Narrative written by the NWS forecast office that issued the report.