Tornado Warning — Warned Area, IL — Apr 27, 2026

NWS LSX · ETN 33 · National Weather Service warning

Radar-indicated position & projected track

Event Summary

The National Weather Service office LSX issued a tornado warning at 17:27 UTC on Apr 27, 2026. The warning was in effect for 48 minutes, ending at Apr 27, 2026 18:15 UTC. At the last radar check, the storm was located near 38.71, -90.48, moving east-northeast at about 40 mph.

Timeline

Issued: Apr 27, 2026 17:27 UTC
Last updated: Apr 28, 2026 11:15 UTC
Ended: Apr 27, 2026 18:15 UTC

Counties Affected

Madison, IL St. Clair, IL St. Charles, MO St. Louis, MO St. Louis City, MO

Towns in the Path

Lemay, MO Affton, MO Kirkwood, MO Fairview Heights, IL O'Fallon, IL Webster Groves, MO Ballwin, MO Manchester, MO East Saint Louis, IL St. Louis, MO

Storm Reports

Time	Location	County / State	EF	Remarks
Apr 27, 2026 18:41 UTC	2 SSW Marine	Madison, IL	UNK	NWS Damage Survey found that a brief EF0 tornado impacted a farm near IL Highway 4 and Interstate 70. (LSX)

Preliminary local storm reports (SPC) within the warned area window — subject to revision after NWS surveys.