EF1 tornado in Susquehanna County, Pennsylvania

Tornado July 23, 2010 · Susquehanna County, Pennsylvania

EF1

Rating

6.8 mi

Whole path

200 yd

Path width

$100K

Damage as recorded

NOAA records this tornado county by county. Its path ran through Susquehanna County → Wayne County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 200 yards (0.11 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF1 means. On the Enhanced Fujita scale, EF1 is moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken, consistent with estimated gusts of 86–110 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

The tornado first touched down about 5:55 pm EDT, 1 mile east of Union Dale in Susquehanna County, PA where it destroyed a construction trailer on Route 171. The tornado lifted over the hill, touching down on the other side of the ridge, taking out trees and causing minor damage to some structures along Mausoleum Road. The tornado was only in Susquehanna County for a mile before crossing into Wayne County.

The wider storm

A warm front lifted north into northeast Pennsylvania during the afternoon, putting the area into the warm and moist air mass of the warm sector, with temperatures in the mid 80s and dew points in the 70s. Showers and thunderstorms developed in the vicinity of the front in this unstable air mass. Stronger storms developed across southeast Susquehanna county, with one storm in particular developing strong rotation as it moved southeast into Wayne county. This storm went on to produce four tornadoes and other significant microburst damage as it continued southeast through Wayne and into Pike county.

Began near Uniondale (41.7178, -75.4847).

Other tornadoes from the same storm system

2 more tornadoes the National Weather Service filed under this storm episode.

EF2 Wayne County EF1 Wayne County

Source: NOAA Storm Events Database, event 251324. Narratives are written by the National Weather Service forecast office that issued the report.

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