Possible Tornado Tracks from Monday afternoon

It was a long day for many across the Stateline yesterday after we saw multiple rounds of severe weather. The area was primed for severe weather with a very warm and humid air mass in place as well as a strong low pressure system moving just north of the area, and a strong jet headed into the region. In the morning a mesoscale convective system tracked across northern portions of the area with help from an approaching warm front. There were multiple severe thunderstorm warnings across the area with this storm. The biggest threats for this system were torrential rain and possible flooding, as well as hail and very strong damaging winds. While the storm was still in Iowa, wind speeds were clocked at 93.9mph! It weakened a bit but we still saw 70mph wind gusts across the area. This led to quite a few reports of damage across northern Illinois and southern Wisconsin.




The low pressure system tracked just north of the area with a trailing cold front. This front along with some help from outflow boundaries helped with storm development later in the day. A tornado watch was issued just before 4:00pm for southern portions of the Stateline area. This is where we saw multiple tornado warnings for a cyclic supercell that tracked through Whiteside and Lee counties in the early evening. The confirmed tornado was in Sublette which is in fair south eastern Lee county and then tracked to the south east. The National Weather Service from multiple agencies will be out this afternoon and evening taking damage surveys on the ground as well as in the air to confirm how many tornadoes hit the area. However here is a look as some of the rotation paths that were indicated on radar. You can see five highlighted areas that the National Weather Service will be looking at today. If you have storm pictures, of the damage, the storm itself, or even interesting clouds you can send them to weather@wtvo.com or tweet them to us. We also have the First Warn Weather App that lets you send them in! Damage pictures are a great tool for the NWS to help determine what type of damage occured.