Just looked at a better map, and the latest projections, I agree that you need to leave ASAP. You will likely be on the northwest side of the storm based on current predictions, and that's the worst place to be. The water is going to push in front of that sucker, and the flooding is going to...
If your coop is well built then it may survive wind if it's anchored down well. You can use hurricane straps and mobile home anchors for the short term. If the area will flood then you really need to move them to higher ground. If your coop is a pre-made, or not well built then it would be...