It has been a long time since Iowa has had its share of a tornado, that’s for sure. Over a year. Quite unusual for Iowa, but it looks like that will change this weekend.

The Storm Prediction Center in Norman, Oklahoma has posted a elevated risk for severe weather on the day on Sunday. A moderately unstable airmass thanks to dew points in the upper 50’s and mid 60’s, will begin moving into the region tomorrow afternoon. And, without capping, storms will likely be forming early in the day with additional development in the afternoon. By the evening, things should really begin kicking.

An unstable airmass combined with modest shear will easily support supercell development late in the evening. Large hail, possibly larger than 2″ in diameter in the black outlined area, damaging winds, especially possible if a bow echo can develop, and a few tornadoes with the stronger storms. Flash Flooding is also a definite concern with the loads of rain we have received over the past few days and the soil remaining saturated.

Live Coverage is expected to begin at around 5:30pm tomorrow with a live chat and live severe weather coverage. Our chase teams will deploy to Southwest Iowa later tonight and into tomorrow – you can make sure to follow them then too. Stay tuned to the Iowa Weather Network for the latest updates!