A fierce and long-lasting line of severe thunderstorms called a derecho is likely to tear across the Northern Plains to kick off the week, causing damage to trees, structures and knocking out power.What To ExpectStorms tracking with the clockwise flow on the northern rim of a heat dome that's bringing another bout of sweltering temperatures to the central U.

The northern Plains, including the Dakotas and Minnesota, are in the bull's-eye of a renewed severe weather threat Monday that is expected to bring violent, damaging wind gusts.