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EF1 tornado in Monroe County, Illinois

Tornado April 20, 2025 · Monroe County, Illinois

EF1

Rating

0.3 mi

Path length

100 yd

Path width

$15K

Damage as recorded

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 100 yards (0.06 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

A brief and weak tornado touched down along EE Road just south of Gilmore Lake and quickly moved northeast before dissipating at the intersection of EE Road and Gilmore Lake Road at 8:13 PM. When the tornado touched down it overturned an outbuilding, and was rated at 99 mph (EF-1) at this point. Tree damage was also recorded. The tornado dissipated shortly thereafter at 8:07 PM.The tornado was rated EF-1 with a path length of 0.35 miles and a maximum path width of 100 yards.

The wider storm

During the early evening of Sunday, April 20, 2025 (Easter Sunday) a line of severe thunderstorms responsible for multiple tornadoes and wind damage in Missouri crossed into Illinois. The line went on to produce 6 tornadoes spanning west-central, south-central, and southwest Illinois and no shortage of wind damage.

Began near Columbia (38.4166, -90.1536).

Other tornadoes from the same storm system

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

EF1 Monroe County EF1 Randolph County EF0 Adams County EF0 Adams County EF0 St. Clair County

Source: NOAA Storm Events Database, event 1242858. Narratives are written by the National Weather Service forecast office that issued the report.

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