Tornado in Mercer County, Illinois
Tornado August 20, 2022 · Mercer County, Illinois
The path drawn at its surveyed width of 10 yards (0.01 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.
What the National Weather Service wrote
A chaser reported that a funnel cloud lasted 2 minutes at this location and eventually touched down briefly. There is photo and eyewitness evidence of the brief ground based rotation. The tornado is rated an EF-U.
The wider storm
The cold core low that moved into the area on August 19th lingered into the 20th. Sufficient instability and shear were present for the formation of many mini supercells that led to many funnel cloud reports with a couple of brief tornado touch downs.
Began near Mannon (41.1993, -90.9390).
Other tornadoes from the same storm system
1 more tornado the National Weather Service filed under this storm episode.
Source: NOAA Storm Events Database, event 1052923. Narratives are written by the National Weather Service forecast office that issued the report.
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