There’s a low pressure system coming down from Canada that’s supposed to suck Irma north, thus the turn to the north we’ve all been waiting for.
If that low pressure system arrives later than projected, Irma could very well continue her trek west over Cuba, hopefully losing a lot of steam in the process.
When the low pressure system belatedly arrives, hopefully Irma will be substantially weakened and beyond Florida, and will get sucked north so fast she won’t have time to re-strengthen.
Katia in the Gulf may be having some influence.
Praying for that outcome!
Low pressure systems doesn’t “suck” a Hurricane north or tug it in any particular direction. They simply feed it’s existing monstrosity.
If Irma gets into the Gulf, it will NOT weaken.
The water in the Gulf is way too warm for that to happen.