1 thunderstorm wind, as filed by the National Weather Service.
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1 thunderstorm wind. Local standard time, as filed.
Scattered trees and limbs were blown down, mainly south of Mount Vernon. A utility company reported most of the tree damage was near Waltonville and Scheller. In Mount Vernon, a large tree fell on an outhouse, and a television antenna at the same residence was blown down.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 1999Every state in 1999This day in weather historyWarnings in Illinois, May 1999
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5693961.