Tropical Storm Idalia set to become hurricane as Florida schools close, DeSantis expands state of emergency

A state of emergency has been expanded and schools in Florida are closing as Tropical Storm Idalia threatens to unleash "life-threatening" storm surge and "dangerous" winds on the state after strengthening into a major hurricane. 

A hurricane warning was in effect Monday for Florida's Gulf Coast stretching from the middle of Longboat Key to the Ochlockonee River, including Tampa Bay, according to the National Hurricane Center. A hurricane watch was in effect from Englewood, Florida, to the middle of Longboat Key, and from the area west of the Ochlockonee River to Indian Pass. 

The storm is expected to hit Florida's Gulf coast on Wednesday, forecasters said.