In Tallahassee, crews were pulled off the road early Monday because of high winds, according to NPR member station WFSU.
"We don't think we're going to see the end of this until Friday", Morgan said. Authorities also struggled to clear the single highway connecting the string of islands to the mainland.
The massive storm triggered evacuation orders for 5.6 million people before it made two landfalls in the state Sunday.
And while Irma was still bringing heavy rain to parts of the region, all tropical storm warnings were canceled by Monday and the storm was expected to weaken significantly before dissipating altogether.
Six deaths in Florida have been blamed on Irma, along with three in Georgia and one in SC. "Persons located within these areas should take all necessary actions to protect life and property from rising water and the potential for other risky conditions", it said.
Statewide, an estimated 13 million people, or two-thirds of Florida's population, remained without power. More than 120 homes near Orlando have had to be evacuated from rising floodwaters.
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According to the state government, more than 30,000 people are working on restoring electricity supply across the state.
However, he said, "We got super, super lucky". "What's going to happen now?"
The governor said the state was fortunate to miss the brunt of Irma but said it was right for the state to prepare as it did. Then, there's the lone model taking the storm through The Bahamas before making another Florida landfall.
In a parting shot, it triggered severe flooding around Jacksonville in the state's northeastern corner.
Georgia and SC are expected to face flooding later in the week as the storm continues north, with Tennessee and Alabama also likely to be affected though the power of the hurricane is expected to significantly subside. If you're headed back home to Florida or the Tampa Bay area, prepare for a frustrating and long trip. "It's frightful, what we saw".
For more than a week - 8.5 days - Irma was a major hurricane, which Klotzbach says puts it second only to Hurricane Ivan in 2004 in the satellite era (which began in 1966). Most complaints relate to fuel prices, while 10 percent concern the sale of water and lodging prices.
"HELP IS ON THE WAY", they promised on Facebook.
While the worst of Irma appears to have passed - at one point it unleashed wind gusts up to 142 miles per hour and storm-surge flooding when it made landfall on Florida's Marco Island on Sunday - the storm still poses numerous threats to residents throughout the Southeast, and the full impact of its devastation could take weeks to assess.
The Jacksonville Sheriff's Office warned residents along the St. Johns River to "Get out NOW".