Hurricane Irma

Back-to-back natural disasters in Mexico and across the Caribbean have left millions of people reeling.

Updated at 11:50 p.m. ET

Irma, once a powerful and longrunning hurricane, weakened to a tropical depression as it moved through Georgia on its way to Alabama. It continues to dump heavy rain but all surge warnings have been canceled.

Irma has left behind dangerous floodwaters, power outages for millions of people and the debris it has made of human possessions across Florida.

The huge storm remained a Category 1 hurricane through early Monday, before finally being downgraded to a tropical storm and then a tropical depression.

As southern Florida prepares to take a direct hit from Hurricane Irma, officials have warned people in downtown Miami to take special care because of the 20 to 25 tower construction cranes that loom over the area, hundreds of feet tall.