Irma Weakens to Tropical Storm

Weather service says Irma still extremely dangerous as it heads over western Florida

BOCA RATON, FL - SEPTEMBER 10: A lone car drives down a road as Hurricane Irma strikes on September 10, 2017 in Boca Raton, Florida. Hurricane Irma made landfall in the Florida Keys as a Category 4 storm today, lashing the state with 130 mph winds as it moves up the coast. Photo by Marc Serota/Getty Images

UPDATE ON MONDAY AFTERNOON:

Irma, downgraded from a hurricane to a tropical storm, is expected to hit southern Georgia by Monday afternoon, said the National Hurricane Center (NHC) in a Monday update.