After making landfall twice on the Gulf Coast as a Category 1 hurricane, Nate weakened to a tropical depression and began moving inland across the U.S. South Sunday. The storm caused flooding and knocked out power to more than 100,000 people in Mississippi and Alabama, but no deaths or serious damage were reported in the region.

Parts of North America and the Caribbean are still reeling the wake of a devastating 2017 Atlantic hurricane season—punctuated by deadly storms like Maria, Irma, and Harvey.

Here's what you need to know about Hurricane Nate 2017 and other potentially powerful storms:

Tropical Depression 19 became Tropical Storm Nate Thursday, when it savaged parts of Nicaragua, Costa Rica, and Honduras, killing at least