[Ekco]

Forecasters warn a rare derecho with hurricane-force winds could plow through part of the US
Level 4 of 5 risk of severe thunderstorms across parts of South Dakota, Minnesota and Iowa Monday, according to the Storm Prediction Center. That heightened risk level is mainly due to the threat of gusts up to 90 mph. The winds could be comparable to those found in a Category 1 hurricane, albeit in shorter bursts. Category 1 hurricanes have sustained winds of at least 74 mph and stronger gusts.

A few tornadoes could also spin up inside the line of already dangerous storms.