Isolated to scattered severe storms should develop across the northern Plains and upper Mississippi Valley Monday afternoon through Monday night. Strong winds gusts and hail will be possible with the stronger storms, while damaging winds could become the primary threat with storms Monday night as they spread to the east and southeast.
Locations impacted in Iowa include: Algona, Spencer, Emmetsburg, Peterson, West Bend, Sibley, Melvin, Rock Rapids, Doon, Lake Park, Forest City, Lake Mills, Bancroft, and Maurice.
Timing: Storms will develop across eastern South Dakota/western Minnesota by late afternoon and will track to the southeast. As they enter into northwest Iowa, storms will only pose a damaging wind threat. If any storms were to contain hail, it would be on the non-severe side. Storms will be expected in northwest Iowa after 10pm CDT, and will continue to track southeast through the state by sunrise Tuesday.