Three people are dead in North Dakota, and tens of thousands are without power in northern Minnesota and northwestern Wisconsin after powerful winds swept across the upper Midwest Friday and overnight Saturday.

Three people are dead and a regional airport has been heavily damaged after powerful winds including a tornado swept across the upper U.S. Midwest.

Powerful winds -- including a tornado -- that swept across parts of the upper Midwest left three people dead and a regional airport heavily damaged, while nearly 150 million Americans were under a heat advisory or warning as the weekend warms up much of the U.