Devastating storms ripped through the southern United States last week, leaving more than 340 people dead and communities crippled in its wake.
Dozens of tornadoes swept across Alabama, Tennessee, Virginia, Mississippi, Georgia and Kentucky.
The hardest hit areas are in Alabama. President Obama visited the state on April 29 to assess the damage and offer support.
Now, in neighboring Mississippi and Louisiana, residents are bracing for massive flooding that will put the region's levee system to the test.
Across the country, Americans are asking how to help Southerners in need. Here at HuffPost Impact, we're assembling a list of information on how to take action, which we will keep updated as the crisis unfolds.
HOW TO HELP: