Much of the KWWL viewing area was dry Sunday afternoon. However, conditions were just right in Linn County for a shower to pop-up around 7:00 p.m.
Sunshine in the afternoon warmed temperatures just enough to add a little instability in the lower levels of the atmosphere to produce the shower, and there was just enough spin to produce a funnel cloud. The National Weather Service issued a Tornado Warning.
Fortunately, no tornado was reported, as the funnel cloud eventually dissipated. Several KWWL viewers sent us photos through e-mail and social media. First, I wanted to show you the viewpoint from Walker, about 20 miles north of Cedar Rapids. Notice how isolated the cell was. In fact, there was sunshine!
Here are the funnel photos: