On Saturday, we mentioned the threat for severe weather across parts of Iowa today. We said it was a very low end threat and marginal. But with the events of Saturday in South Dakota we have a better handle on what could happen along a stalled frontal boundary over northern Iowa on Sunday.
The Storm Prediction Center has posted a slight risk for much of the northern half of Iowa. This is where a boundary will set up shop and have enough instability in the air to trigger a few thunderstorms. Some of these storms could produce large hail, strong wind gusts and even an isolated tornado or two.
Overall the threat remains low, and no widespread severe weather is expected. But the potential is great enough for a low-end slight risk to be posted. People living in the risk area need to stay aware of the changing weather conditions throughout Sunday afternoon and into the evening hours. We’ll monitor the potential throughout the day and post updates as they come in.