Latest Euro model seems to bring Irma into Florida roughly at Homestead on Sunday morning at something south of 935 mbars...not as bullish as that 891 from the GFS, but probably still at least a '4'.
So at least Florida will have plenty of warning this week.
ignore with those models intensity wise......those are the two big ones for the track
the new GFS upgrade has been overdoing storms this year...but in those cases it wasn’t in conditions as favorable as this ...ie SST’s too low to support what is it was forecasting at the time