ST. LOUIS—The National Weather Service (NWS) has confirmed at least four tornadoes from Thursday morning’s severe weather.
The NWS says it did not receive any reports from last night’s tornado warnings that prompted a survey. The NWS says there was radar indicated rotation near Mayesville, Illinois last night but there is evidence of a touch down. Monroe County officials have no reports of damage.
The NWS says a weak tornado was on the ground for about one minute Thursday morning on Lackland Road between I-170 and St. Charles Rock Road.
The touch down happened about 7:46 a.m. and came during the first round of warnings of the day.
Crews say damage was confined to trees, fencing, roofs and siding. The wind speed was estimated to be about 75 mph and the twister was approximately 50 yards wide.
Three weak tornadoes were confirmed in Jersey County, Ill. from storms on Thursday morning. All were rated as EF0 by National Weather Service survey team.
The first one touched down in near Jerseyville, Ilinois. Maximum winds were estimated to be around 85 mph and the twister was on the ground for 10 minutes, between 7:28 a.m. and 7:38 a.m.
This tornado is estimated to be 100 yards wide. Crews say damage was primarily found to trees, roofs and siding of houses.
About six minutes later, just south of Fidelity, Ill., in the same county, another tornado touched down. With estimated maximum winds of 85 mph, this tornado was rated an EF0.
Damage to trees, siding of homes, roofs and a grain silo was reported. This twister was on the ground for four minutes with an estimated width of 75 yards and uprooted trees.
And the third tornado touch down happened just north of the Brighton are, also in Jersey County. It was also an EF0 tornado. The maximum wind speed was estimated to be 85 mph, and it was on the ground for two minutes
Damage from this tornado was confined to trees, fencing, roofs and siding and had an estimated width of 100 yards.
A tornado-warned storm crossed the Mississippi River into Jersey County, Illinois at 7:25 a.m. causing damage to trees and branches in Pere Marquette State Park. Survey teams found the debris laying in the same direction and confirmed it was from straight line winds, not from a tornado.
Winds were estimated in the 70 to 75 mph range.