All of Iowa finds itself under a slight risk for severe weather today. But the specific threats begin to separate different parts of the state. A storm system pushing in from the west could begin affecting western portions of Iowa this afternoon. Where storms develop stand the best chance to see tornadic development.
But the Storm Prediction Center is having a tough time nailing that down. Instead, virtually the entire state is highlighted in a 5% risk area for tornadoes today (as you can see in the image to the right). The dynamics are there for the threat of tornadoes to last well into the night. But for chase purposes we expect to focus most of our time on areas west of Interstate 35 today.
As this storm system plays out, it will push further east into Iowa. After nightfall it’s expected storms should take a more linear form, changing the greatest risk to strong damaging winds. This is evident in the wind risk seen to the left. The SPC highlights the eastern half of Iowa and points east.
The overall greatest risk for severe weather lies in the hail risk. Most of Iowa is “hatched out” which could indicate widespread reports of hail greater than 1” in diameter is possible today and tonight across the state.
Overall, a busy afternoon and evening for just about everyone in Iowa. Chase teams will fan out even though the tornado risk is relatively small. It’s hard to nail down the greatest risk area today for tornadoes, but we’re focuses more on the northwestern quarter of Iowa today.
We’ll bring you updates when we can, but while we’re in the field, internet connections are few and far between. We’ll try to provide updates as often as possible. If not here, follow our twitter for more information as the storms take shape.