The hurricane, which killed more than 60 people in the Caribbean, isn't as strong as it was but is still causing lots of problems.
Ivan is the third hurricane to hit the region in the last five weeks and another one, Jeanne, is on the way.
Jeanne has already killed three people, and has brought down power lines and trees in the Dominican Republic.
It was the worst weather to hit the area in 25 years and left 100,000 people without power.
Flooding is still a big problem and smaller storms may appear in some US states over the next few days.
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