Severe storms and tornadoes in the Midwest and South killed at least 27 people over the weekend, 19 of them in Kentucky. And extreme weather is still in the forecast from the plains to the Ohio Valley.

Mid-May is living up to its reputation for severe weather as an active weather pattern brings the threat of strong tornadoes, damaging hail and intense, destructive wind gusts over multiple days.

Cities such as Chicago, Minneapolis and Milwaukee are at risk for a severe weather outbreak, forecasters said.