EF0 tornado in Montgomery County, Illinois

Tornado March 7, 2017 · Montgomery County, Illinois

EF0

Rating

12.9 mi

Whole path

50 yd

Path width

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 50 yards (0.03 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF0 means. On the Enhanced Fujita scale, EF0 is light damage: shingles and siding peeled, gutters torn, branches broken, consistent with estimated gusts of 65–85 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 continued northeast crossing into Montgomery County about 2.2 miles northeast of Interstate 55. After crossing U.S. Route 66, the tornado caused minor roof and tree damage on East First Road just south of Grosenheider Lane. For the remainder of the track, minor roof, siding and tree damage was observed. The tornado dissipated southeast of Litchfield along Flat School Road. Damage was rated EF0 in Montgomery County. Overall, the tornado was rated EF1 with a path length of 12.92 miles and a max path width of 100 yards.

The wider storm

As a cold front moved across the region, a squall line developed and moved rapidly east across the forecast area. There were numerous reports of damaging winds, large hail and 8 tornadoes.

Began near Litchfield Muni Arpt (39.1116, -89.6994).

Other tornadoes from the same storm system

1 more tornado the National Weather Service filed under this storm episode.

EF1 Montgomery County

Source: NOAA Storm Events Database, event 686708. Narratives are written by the National Weather Service forecast office that issued the report.

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