This monday night, on this 9 11, a nation remembers. Good evening from south florida tonight. Right here along u. S. 1, the entrance to the florida keys, where they are not allowing any families to return home. State police roadblocks just ahead here, amid reports of devastation in the keys. Two search and rescue mobile units just passed by us, their sirens on. They were headed into the keys. And in a moment here, we will head to amy robach, who flew into the storm zone. What she witnessed in the keys on the ground herself. But the other part of this story unfolding right now as we come on, the storm slamming into other American Cities tonight. A dangerous storm surge in jacksonville, florida. And it is hammering georgia tonight, on its way to atlanta. Reports parts of charleston are under water, too. Tonight, irma is now a powerful tropical storm, stretching more than 400 miles across. So, we begin with abcs linsey davis on the urgent water rescues. Shes in jacksonville, leading us off tonight. Reporter tonight, irma is pushing northward. In jacksonville, massive storm surge and a flash flood emergency. Terrifying water rescues along the swollen st. Johns river. The citys mayor warning residents who didnt go to shelters to get in and get up. And i would remind folks to put a white flag or something that represents a white flag if we need to get you out. Reporter this is a good indicator right here. This is normally a plaza, a walkway to the ocean. And now its filled with ocean water. More than 36 hours after hitting the florida keys, irmas winds extend out more than 400 miles, from florida to georgia. And now the carolinas. This waterspout and tornado warnings near charleston. City streets engulfed by heavy rain and storm surge. On the florida coast, homes collapsed into the sand near st. Augustine. Outside orlando, firefighters going home to home in this rv park after a possible tornado touched down overnight. Theyre breaking out the doors and the windows and theyre climbing inside. Reporter and in georgia, howling winds downed huge trees. At least two deaths have been confirmed. Our alex perez is in atlanta. The powerful winds, gusting up to 60 Miles Per Hour here, peeling the metal siding right off this high rise. Authorities forced to shut down many parts of downtown. Reporter a major city bracing for a rough night ahead. And linsey joins us live from a flooded downtown jacksonville. And linsey, you were telling us, they say the flood waters there could last for days now . Reporter officials are saying, david, it could last for a week. Take a look at this. This is actually low tide right now, and, yet, the flooding still persists. Youre looking at water that simply has nowhere to go. And in the meantime, you have several cars just like this one, submerged in the water. In fact, just a few moments ago, firefighters came by just to make sure no one was stranded inside. David . Linsey davis leading us off tonight from jacksonville. Linsey, thank you. Of course, irma first made u. S. Landfall just south of where im standing in the florida keys. One way in, one way out. I want to take you up to this drone footage tonight, because this evening, families are lined up, traffic is backed up as far as we can see here. They are desperate to get back home to see if they have a home. But authorities, as i mentioned, are not allowing them, saying it is far too dangerous. Tonight, our amy robach, flying over the destruction in a helicopter before witnessing the damage on the ground firsthand. Shes in the keys tonight. Reporter tonight, the first look at the destruction in the florida keys. In cudjoe key, where irma made landfall, cars tossed from the roads, buried under sand. Homes knocked right off their foundation. We saw the damage from above. We are flying over u. S. 1 rit now, that is the road that is shut down to residents who are trying to get back. The only way you can access the keys now is by air or by sea. Bridges now damaged. We see streets completely flooded. Weve seen boats thrown upside down, roofs ripped off, and entire trailers or mobile homes demolished. On the ground in key west, a glimpse of that powerful storm surge that followed Hurricane Irmas landfall. The water washing sections of road away. Some buildings completely destroyed. Tonight, much of the keys are without power or water. And when we reach marathon key, we see irmas wrath. Entire neighborhoods completely flattened. Looking down on these mobile homes parks in marathon, it just looks like a debris field. Some of them, they are just completely destroyed. This piece of paradise, now on a long road to recovery. Downed power lines, the beach spilling into the roadway, debris everywhere. It is going to be months and months before the community of marathon gets back up and running. David . The images coming in from the keys tonight. Just awful. Amy robach, our thanks to you. And that devastation that you saw in amys report, from irmas first u. S. Landfall, we know that it was just hours later, irma slammed ashore again, making landfall in marco island and plowing through na e naples, where we were, live on the air. It hit more than 140 Miles Per Hour. Tonight, what we witnessed at daybreak today when we could finally see what irma had done. Tonight, the new images from naples, florida. Under water. Entire neighborhoods swallowed by the storm. This homes roof, gone. The right side collapsed. It was here that Hurricane Irma hit with the highest wind gust reported in florida. 142 Miles Per Hour, as we were on the air. Look at this. This is just incredible. Over our shoulder here. We are blocked by two sort of concrete barriers, which is the only reason were able to talk, because if we were another five feet this way, wed be caught in this. Trees snapping. Pieces of the roof above us turning into projectiles. Debris flying through the air. After sustained wind speeds over 100 Miles Per Hour, suddenly, we were in the middle of the eye, when forecasters tell you, do not be fooled by the lull in the storm. And this is literally what it looks like the moment after irma passed. The winds have stopped. The rain has stopped. And now we can see the devastation. But within 30 minutes afterward, the wind suddenly whipping up again, sheets of rain coming down. This was the backside of the hurricane, as it then headed north to ft. Myers, and this morning, hitting in jacksonville. Just as families were returning home to naples to this. You can see this apartment building. Most of these families likely evacuated during the storm. But theyre going to come back to find that their cars are completely damaged. The state emergency chief this morning saying, we cannot have the full extent of this damage until theyre able to go out, but they warned everyone to stay inside after the storm. All over florida tonight, so many people trying to get home. In miami, the massive traffic jam on the mcarthur causeway. Cars turning around midhighway and traveling west on eastbound lanes. But here in key west, they are not allowed to return home. As you can see, this is the only entrance to the florida keys, and for families who live here, theyre not being allowed in. They dont know if their homes are still standing, even as they hear reports of the devastation in the keys. Authorities have told them to go back to the shelters and wait for official word before anyone can return. And you can see authorities are standing here, theyre holding firm. Andrew garcia telling me hes been waiting since early this morning to go home, but they will not let anyone in. Frustration and fear mounting for so many families waiting to see if their property, their homes survived. What do you make of the destruction youre hearing about further down . Further down is further down. The roads are washed away. You guys arent going to go pave the roads before letting us in. Its going to be weeks before those roads get paved. But my house, my parents are there. Why not let us go home . Im glad theyre okay. Yes, were very thankful and were very grateful. You just feel for the families tonight. I mentioned that second u. S. Landfall on marco island. Tonight, abcs Senior National correspondent matt gutman made his way there, with so many families worried about what theyre coming home to. Reporter irma came howling into marco island at 3 35 eastern. Get back, get back with the force and the sound of a jet engine. 130 Miles Per Hour, tearing through the western coast of florida. God help everybody. Reporter the highest gust in naples, 142 Miles Per Hour. We were there. Theres this sort of circular swirl happening. Flooding in st. Petersburg, tampa and mt. Fivers. Everglade city swamped. Significant flooding in the city itself. Reporter at daybreak, crews started plowing through the mangled trees. Power out for millions here. We have no electric, we have no water on the island, so, were encouraging people, if you dont have to come back right now, dont. Reporter officials estimate 5,000 people hunkered down in marco island. This afternoon, rescuers making their first poststorm rounds. And it was there that we found mark and kathy. Whoa. What is that . Thats the ceiling. Reporter it seems to have shredded the insulation. Insulation, yeah. It got wet, i guess, and all came apart. Reporter fleeing the florida keys for what they thought was the safety of marco island. Did you get out of the way . Not at all. We ended up right dead center. And matt gutman joins us live tonight from marco island. And matt, i know you have an incredible scene behind you, no power, no water there, and likely for some time to come. Reporter david, theyre saying it could be weeks and in this heat, this could bring tremendous misery. And amid all this destruction, perhaps there is a silver lining. This is one of the multiple homes essentially detonated by irma. The contents of the kitchen blown out, the roof heaved over on the other side. But i want you to see something that really struck us. Look at every house on this bay. Almost every single one completely unscathed. And that is because they were built using the latest designs to be able to withstand a category 5 storm. Probably saving hundreds of thousands of homes here in florida. David . Yeah, stark contrast. So important, those relation r that changed after andrew. Matt, thank you. As we reported at the top, irma is not done yet. Its going to be another dangerous night of winds and blinding rain. Chief meteorologist ginger zee with the new track tonight. Ginger . Reporter hey there, david. You can see the center in south georgia. Now moving northnorthwest at 17 miles an hour. So, it is cooking. It is trying to get out of here. With it will come a lot of heavy rain, especially west of atlanta and eastern alabama. And you can also see the tornado watch in place tonight that includes hilton head, charleston, savannah, all the way through 11 00 p. M. Tonight. The wind advisories, those are for gusts up to 45 Miles Per Hour. Nashville makes its way in there. Eastern mississippi. And parts of north carolina. Dont forget, more than eight inches of rain still possible with this storm. David . Ginger zee, who was tracking this all weekend long. Ginger, thank you. The number of people without power tonight is simply staggering here. More than half the state. This satellite image tonight. What a clear night looks like over south florida. Thats miami, up to west palm beach, all lit up. Overnight, a much different view. So many families in the dark here. Abcs chief National Correspondent tom llamas on the effort to get the power back on and in many places, get the water running again. Hes in ft. Myers. Reporter tonight, an army of utility crews on a mission to restore power to more than 6. 5 million florida customers. It absolutely could be weeks, if we have to rebuild parts of the system. Reporter those sparks, with irma hitting, a sign of the crisis to come. Trees collapsing. Power lines snapping like twigs. Look at that power pole. Its split into two pieces. There are power lines all across the road. Now, were not sure if those are live wires, but we do know this. Police arent taking any chances. Theyve set up a roadblock to make sure no one drives over those lines. Last night was horrible. Reporter the fulbright family lost power just before irma hit ft. Myers. They showed us the small gas generator keeping their refrigerator running. But the gas, like their patience, is running out. I dont see the power coming on any time soon with all the flooding. Reporter the Power Outages also affecting the water system, many floridians told to boil their water tonight. And authorities warning of other dangers. That dead traffic lights could lead to car crashes at intersections. Tom llamas is in ft. Myers tonight. And tom, you showed us that family and their generators. Authorities want us to warn to many at home, if you do have a generator, make sure you dont keep it inside the house. Reporter thats right, david. It needs to stay outside, because of the danger of Carbon Monoxide poisoning. And we have noticed a lot of generators outside in this neighborhood. Just behind me, that massive tree taking down power lines. But look at this, david. The power crews up there, working late into the night, making sure they can restore power at least to this neighborhood. David . A herculean effort tonight. Tom llamas, thank you so much. This storm causing a travel nightmare, affecting flights coast to coast. Take a look at the flight radar from last monday, the air traffic over florida. And then today. The skies over florida virtually empty. Abcs gio benitez at miami airport, still shut down tonight. Reporter tonight, irmas wrath damaging south florida airports. Debris littering terminals, windows breaking. Of those 4,000 Flights Canceled today, more than 1,000 in atlanta because of strong winds. Miami international airport, reopening tomorrow. Its going to be an incremental, gradual ramp up to 100 flights. Reporter we met juan solveyra, stranded at m. I. A. Since friday. You must have never expected to sleep in an airport . No, i never. Never. Never in my life. Reporter really . Yeah. Reporter and chaos on the roads, as some of the millions of floridians ordered to evacuate started going back home. Near miami beach, drivers forced to turn around. And many families tonight separated. Dr. Louis freeman, a radiologist, staying behind to work, his family evacuated to charlotte. When you see this, what do you think . Oh, thank god that im alive. I its hard. You know, you come home after 48 hours straight of working, and then you find everything that you worked hard for, you know, literally destroyed. But thank god that everybodys safe. And gio benitez is live from miami airport tonight. And gio, we heard you report there, they plan to reopen the airport tomorrow. Lets hope so, but one of the concerns, the jet fuel, and if it was affected by the storm . Reporter thats right, david. They wanted to test it, to make sure that the fuel wasnt contaminated by the rain. It wasnt. So, its good to go. David . That is good news tonight. Gio benitez in miami. Gio, thank you. There is still much more ahead on world news tonight this monday. The race to get americans out of the caribbean. More than 1,000 tourists already evacuated by the u. S. Military as desperation now sets in on those hardhit islands. So Many Americans want out. Also, the other news tonight. The deadly mass shooting. 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Next tonight here, as the recovery simply begins here in florida, the destruction despair becoming clear in the caribbean. These nasa satellite images show the caribbean islands from the sky before Hurricane Irma struck, and then those islands seen again in the storms aftermath, turned brown by the power of Hurricane Irma. And in some of those islands, u. S. Forces are now racing to evacuate so Many Americans who are still stranded. Heres abcs linzie janis tonight. Reporter tonight, the u. S. Military scrambling to get stranded american tourists out of stormravaged st. Martin, as teams move into the u. S. Virgin islands to help keep law and order. Go back to your room right now reporter one tourist who was evacuated from st. Martin showing us this moment. Dutch soldiers hunting down robbers at her hotel. Another, maureen puckerin, says men with long swords raided her hotel. They started stealing food from our fridge and then, they beat up one tourist