Meteorologist Jason Dunning It’s very important when seeing updates on Hurricane Irma to remember that the storm isn’t just a point on a map. This is a massive storm, close to being the size of Florida if you measure the distance of its cloud shield from one end to the other. The tropical storm force wind field is 320 miles wide. The hurricane wind field is 120 miles wide. There’s a high chance most all of Florida will be impacted in some way based on the storm’s expected movement along the peninsula. If you live in South Florida and live close to the coast, the sooner you leave the better. There will likely be simultaneous evacuations on both coasts, making northbound traffic a nightmare.