More than 100 million people in the U.S. will be in the path of an intense March storm starting Friday as the sprawling multi-day system threatens fires, blizzards, tornadoes, and flooding as it tracks eastward across the Great Plains.

The forecast comes days after an expansive storm similarly trekked across the U.S. last week, unloading snow in the northern Plains and bringing tornadoes and wildfires to the South. At least five storm-related deaths in Nebraska and Mississippi were tied to that storm.

A colossal storm could bring hurricane-force winds, major flooding, blizzard conditions and tornadoes to much of the U.S. later this week.

Forecasters say a colossal storm could bring heavy winds, flooding, blizzard conditions and tornadoes to some parts of the country.

Forecasters said tornadoes, damaging winds and hail up to baseball-size were likely, with the greatest risk in eastern Missouri, much of Illinois and portions of Iowa, Kentucky, T