EF1 Tornado — Marshall, Illinois

2024-07-14 · near Henry, Marshall, Illinois

Event narrative

A tornado touched down just east of the Illinois River near the north edge of Billsbach Lake at 11:42 PM CDT. The tornado tracked southeastward causing extensive tree damage in the Lake Wildwood area before dissipating southeast of the intersection of Lake Wildwood Drive and County Road 2100 East about 2 miles north-northwest of Varna at 11:45 PM CDT.

Wider weather episode

Thunderstorms initiated across central and northern Iowa during the afternoon of July 14th. A highly unstable and sheared environment quickly led to upscale growth into a Mesoscale Convective System (MCS) that tracked east-southeastward along the northern periphery of a prominent upper-level ridge centered over the southern Plains into the lower Mississippi River Valley. Widespread wind damage occurred within the path of the MCS during the evening of July 14th into the pre-dawn hours of July 15th...mainly north of the I-74 corridor. National Weather Service Lincoln damage survey teams found 3 tornado touchdowns along the leading edge of the storms in Marshall County, all 3 of which were rated EF-1. Additional analysis of Sentinel satellite data found two more brief tornadoes occurred in rural Marshall County. These two were rated EF-Unknown.

View location on OpenStreetMap → (41.0915, -89.3481)

Source: NOAA Storm Events Database, event_id 1187368. Narrative written by the NWS forecast office that issued the report.