A new round of storms tonight may produce flash flooding, considering how humid the air is. A Flash Flood Watch has been issued for Winnebago, Boone, Ogle, Lee, and DeKalb counties until 6 am Friday.
A line of storms is working out of southwest Wisconsin now, and sliding into the very humid air we felt today. This will give the storms tons of moisture to work with, causing heavy rainfall. If the storms track repeatedly over the same spots that got heavy rain last night (like in Lee County and especially around Dixon), or they slow down and sit over certain areas, flash flooding looks imminent. In addition, these storms may produce strong wind gusts and plenty of lightning.
The storms should be moving out after midnight, with not much else moving in for the remainder of the night. Since the high humidity doesn't fully go away, heavy rainfall -producing storms may pop up again Friday evening.
During a flash flood, water can pile up quickly, and cause roads to be impassible. If you see water over the road, do not drive into it, even if it doesn't look that deep! Find a different route, because your vehicle can easily stall out or get swept away in the flood waters.
Stay with the 13 Weather Authority for the latest on these storms. You can track them from home with our Interactive Radar by clicking here.