In Jacksonville, record-breaking flooding from Irma's storm surge continues to affect the city.
- Miami streets turned into raging rivers, and the city's airport is closed because of significant water damage.
More showers are likely Tuesday morning with wind gusts as high as 25 miles per hour.
Irma, however, continued to be a threat as it crossed the northern part of the state and because of lingering storm surges along both coasts.
Relief operations are under way in Florida, as the extent of the damage from Hurricane Irma becomes clear.
Hurricane Irma knocked down power in dozens of Florida counties, leaving as many as 6.5 million customers without power Monday, the state's emergency management agency reported.More news: How Sinai Province's persistent attempts to penetrate Cairo have failed
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The Florida Keys Aqueduct Authority issued a notice to boil water, and small water distribution systems broke down during the storm, leading to low water pressure and widespread water outages.
Officials say Irma's center will move over the western Florida peninsula Monday morning, and further into the southeast US later Monday evening. FEMA chief Brock Long has said some places won't have electricity for weeks. State media reported about 1 million people were evacuated from high-risk flood areas.
- In Venice, Florida, the water plant was shut down after it was damaged by the storm.
Irma was downgraded to a tropical storm with winds of up to 70mph as it moved into Georgia and SC.
Jacksonville Mayor Lenny Curry said during a briefing Monday afternoon that people shouldn't be trying to ride out the flooding that has followed Irma.
Tropical storm force winds are forecast to reach the Islands by Thursday night, and will lash Florida, Georgia and the Carolinas by Friday night.
It cut a devastating track across 10 Caribbean countries and territories, killing at least 28 people there.