The most intense storms, with wind gusts potentially exceeding 75 m.p.h., were forecast for central and eastern South Dakota, southwestern Minnesota and northern Iowa.

A dangerous derecho is expected to form in parts of the Northern Plains and Upper Midwest on Monday, with wind gusts over 75 mph likely. A moderate threat for severe storms is in place for parts of South Dakota and Minnesota on Monday afternoon into the evening due to the threat of a derecho, a wind storm that can cause significant damage.

MINNEAPOLIS — A derecho is possible across the Dakotas and central and southern Minnesota about midday Monday into Monday night, bringing a significant wind threat. Wind gusts over 75 mph are possible, along with heavy rain and embedded tornadoes within the line.