if Ernesto is to really get cranking before Bermuda, it still has some time, but that window is closing.
Model guidance is still suggesting that some continued gradual
strengthening is possible in the next day or so. The deep-layer
vertical wind shear is forecast to be weak to moderate, and Ernesto
should be over warm waters for the next few days. However, the
broad nature of the current circulation, coupled with some dry air
ingestion, will likely slow the intensification rate. Ernesto is
now forecast to peak at 95 kt in 24 h, which is near the top of the
model guidance envelope. Beyond a day, the shear is expected to
increase and induce gradually weakening, though the warm waters and
positive interaction with the upper-level trough will likely allow
Ernesto remain a powerful hurricane as it moves north of Bermuda.