EF2 Tornado — Boone, Illinois

2010-11-22 · near Argyle, Boone, Illinois

Event narrative

A tornado which touched down in eastern Winnebago County, crossed into western Boone County and moved across largely open rural fields towards the town of Caledonia. Significant damage occurred to at least six buildings in Caledonia, with approximately 20 additional buildings sustaining minor damage. Several large trees were snapped or uprooted, and a grain bin partially collapsed. The tornado was again likely at EF2 intensity at this time. The tornado then continued northeast from Caledonia, downing several power poles and causing damage ranging from blown off roofs to completely destroying at least three farm outbuildings. One of these buildings, located two miles northwest of Capron, had also been damaged during the January 2008 tornado. The tornado then crossed into McHenry County.

Wider weather episode

Strong to severe thunderstorms moved across parts of northern Illinois during the afternoon hours of November 22nd. These storms produced two tornadoes, hail, heavy rain and some flooding.

View location on OpenStreetMap → (42.3413, -88.9403)

Source: NOAA Storm Events Database, event_id 1244227. Narrative written by the NWS forecast office that issued the report.