Sky Stampede

We were returning home to Cedar Rapids from a wedding in West Union, Iowa on Saturday, June 12, 2010, when we were treated to this sky filled with high-level Cirrus Uncinus (mare's tail) clouds over a low-level bank of cumulus. This image, taken around 8:20 PM, looks west along Highway 150, south of Independence. Mare's tails are often indicators of a change to a more active weather situation, and in this case stormy weather arrived in the area two days later.