At least 30 people died as violent weather swept the country on Friday and Saturday, and the threat isn't over.

Scientists said the storm's strength and potential for far-reaching impacts is notable, but its timing isn't unusual.

BAKERSFIELD, Mo. (AP) — Storms sweeping across U.S. cause new fatalities in Missouri and Arkansas, bringing overall death toll to 16. A multi-day severe weather event will unfold south of the border.

A sprawling storm system crossing the U.S. on Friday caused deadly crashes, damaged buildings and fanned more than 100 ...