A slight risk of severe weather has been issued for western Iowa for Sunday. Main risks at this time are large hail and damaging winds. The tornado threat is low, but is still something to monitor. The greatest risk for tornadoes would be early in storm development, as storms will quickly line out.
Storms should develop across eastern Nebraska/ western Iowa after 4pm. This is when storms will be discrete, and have the greatest chance to produce a tornado. By 7pm, storms will have lined out, which will transition the severe risk over to a damaging wind threat.
These storms look to produce some very heavy rainfall. The latest high-res models have rainfall totals up over two inches of rain across western Iowa. As of right now, a general quarter of an inch to an inch and a half will be possible across western Iowa.
Our chase team will be out tomorrow afternoon tracking these storms, so make sure to follow us for the latest updates.