The latest satellite loop continues show Irma getting better organized as it moves on a course north of due west in the Eastern Tropical Atlantic. The system has a well defined core. There does not appear to be anything in the way of continued strengthening at the moment. The system is very symetrical with good inflow and expanding outflow so strengthening should continue.
The wide view on the satellite loops this morning show that Irma pretty much sits alone in the Tropical Atlantic. To the northwest of Irma there is an upper low and you can see it on the water vapor imagery. That upper low has been drifting slowly southwestward overnight and this morning but weather models have that upper low lifting out to the northwest later today and tonight. That is really the only thing that would prevent Irma from strengthening further is if that upper low were to drop southwestward and create a strong wind shear environment. For now we will assume the weather models are correct and that the upper low will get out of the way later today. Assuming no other unforeseen issues, Irma will become a major hurricane before it reaches the Leeward Islands...READ MORE AT METEOROLOGISTJOECIOFFI.COM