Euro is one of four weather models favored by the weather services. They are all run by many agencies on a daily basis or even more frequently.
This is one page that shows current model runs for all four models.
Each model is run multiple times with slightly different starting conditions to reflect the uncertainties in the available information. The results of these different runs are called ensembles and produce the dense mass of lines on the simulation maps. Each model performs better under certain conditions and those conditions can change very quickly. That means you can't rely on any one model to predict what is going to happen, even though one may have performed well so far.
There is little comfort in any of these models. Much of Florida is less than 100 miles across. Current hurricane force winds in Irma are up to 50 miles from the eye and storm force winds 160 miles from the eye. The storm is three times bigger than the width of Florida.
My preferred weather side is wunderground.com with information on Irma and Jose
here. Their latest update is
here. They express significant concern for flying glass from glass curtain hi-rises in some areas and also concern for storm surges as high as 10 feet in some areas.
This page maps predicted storm surge for different strength hurricanes in southeast Florida.
It is hard to let go of things you have nurtured and cherished but as many have said here, you can replace or restore things but not lives. Please be safe and remember is is better to go back and repair damage than to not be there to return.