Iowa Weather Forecasts Online - IowaWeather.com

A line of storms developed ahead of an approaching cold front late Father’s Day afternoon from northern to southern Iowa. After 6 p.m. a few of those storms ended up spinning up a few tornado warnings, with two of the storms producing confirmed tornadoes...

After an active night of severe weather across the southern half of Iowa with large hail and damaging wind gusts, a more widespread threat of severe weather will be possible on Father’s day across the entire state of Iowa.
Timing: Additional storms will move into southwest Iowa after midnight Saturday and will track off to the east/northeast. There is a possibility that a few of these storms may contain some hail. These storms will then exit the state by early to mid-morning...

The Storm Prediction Center as of mid-day Friday has increased the risk of severe weather across the southern half of Iowa. This is where an enhanced risk of severe weather will exist for the potential for very large hail initially, before storms transition...

Severe storms are expected late this afternoon into tonight for northern Iowa. In the latest SPC update as of Thursday morning, an enhanced risk has been issued for much of northern Iowa. This is where the greatest risk for large hail, damaging wind...