Hurricane Matthew Intensifies

The strongest storm system to threaten the United States in a decade roared toward landfall with Florida on Thursday, forcing hundreds of thousands to flee their homes as the deadly hurricane took direct aim at Florida’s Atlantic shores and threatened further damage up the East Coast.

Hurricane Matthew is pummeling the Bahamas Thursday. Its next stop could be the United States.

Here's what you need to know now about the powerful storm that forecasters say is gaining strength.