rich 1.0 (TALLAHASSEE, Fla.) — Tropical Storm Colin was gaining speed and strength Monday on its way to strike Florida, threatening rains forecasters said could cause some serious flooding along much of the state's Gulf coast. A large portion of Florida's western and Panhandle coast was already under a tropical storm warning when the National Hurricane Center announced that a quickly moving depression had become a named storm. TIME's Top Stories https://audioboom.com/channels/3380207-time-s-top-stories Audioboom https://audioboom.com 480 95 https://audioboom.com/i/22329020/600x600/c 600 600 <iframe width="100%" height="95" src="https://embeds.audioboom.com/posts/4662642/embed?v=202301" style="background-color: transparent; display: block; padding: 0; width: 100%" frameborder="0" allowtransparency="allowtransparency" scrolling="no" title="Audioboom player" allow="autoplay" sandbox="allow-downloads allow-forms allow-popups allow-same-origin allow-scripts allow-storage-access-by-user-activation allow-top-navigation-by-user-activation"></iframe>