National Weather Service United States Department of Commerce

Scattered storms to increase in coverage and intensity as they move into eastern IA this morning. These storms may become severe, with damaging wind the primary threat. In addition, they will moving very fast which could reduce reaction time if a warning is issued. Make sure you heed any warnings and quickly take shelter today!
Another hot and humid day is in store for most, with peak afternoon heat indices topping out in the upper 90s / low 100s south of I-80. Morning storm activity and cloud cover may dampen the overall heat today north of I-80.
Active weather will continue through Thursday, with several rounds of storms possible. Isolated severe storms may occur both Wednesday and Thursday, with damaging wind and heavy rain the primary risks.
An initial recap of the Tuesday, August 11th morning severe weather event.