It felt like it was over 100 degrees for a good portion of Friday, and many places even topped out with a heat index value over 110! This came from highs in the lower 90s and dew points in the upper 70s to even lower 80s at times, which is almost unheard of.
All this heat and humidity are acting like fuel for thunderstorms, which is why there’s a TORNADO WATCH in effect for much of Western Wisconsin until 10 PM tonight. Storms formed in the afternoon in Minnesota and have a history of producing tornadic rotation, large hail stones up to 2 inches in diameter, straight line wind gusts in excess of 70 mph, and torrential rain.
If you or someone you know is at Country Jam or Rock Fest, make sure they’re aware of the situation and have a plan to seek shelter in a sturdy building on a moment’s notice. Campers and mobile homes are not safe in severe storms.
Storms will continue to move through this evening, and if a warning is issued you should go to your tornado shelter in a small interior room on the lowest floor of the building, preferably a basement with as many walls as possible between you and outside. Cover head with blankets and pillows, and wearing bike helmets and shoes are also helpful. Prepare before the warning is issued- that’s why watches exist.
The system causing all of this weather will move out Saturday, though scattered showers and thunderstorms are still likely with heavy rain and localized flooding possible.
Expect highs near 80 on Sunday but no humidity! Dew points will finally be below 60 and it will feel refreshing outside. Most of next week will be perfect with highs in the low to mid 80s and only a little humidity returning.