EF2 tornado in Crawford County, Iowa

This tornado formed in Shelby County and passed into Crawford County shortly after developing. This tornado moved almost due north for much of its path and passed just west of Manilla. An farm building was completely destroyed just northwest of Manilla producing EF2 damage. The tornado then paralleled 320th street for much of the remainder of its path before lifting several miles southwest of Vail.

Multiple rounds of storms moved across the area on April 26th. The first round was fueled by broad thermal lift and passed across Iowa through the morning with a few of these storms producing small hail but all remained sub severe. The area dried out and cleared out behind this round, allowing for a few hours of destabilization. By afternoon the warm sector was sufficiently unstable between the warm front and a dryline. Robust convection developed along that dryline in the afternoon in western Nebraska, moving into Iowa in the early evening. With sufficient instability, the increasing low level jet, and SRH exceeding 300 m2/s2, large hail and tornadoes occurred with storms across western to central Iowa. In all, 28 tornadoes occurred in Iowa with 18 within the NWS Des Moines area.