Hurricane Isaias: Further West (Florida Landfall) and Weaker

The latest computer run using the European Centre for Medium-Range Weather Forecasts model, which has been among the most accurate models over the last few years.
First up, Ryan Maue (the keeper of the Accumulated Cyclone Energy table):

Real-time 12Z ECMWF EPS tracks updating now @weathermodels_ showing the center of Hurricane #Isaias heading toward SE Florida by late Saturday -- that's tomorrow. 🌀

This one of the cool tools I've developed -- no need to wait around for the entire batch of spaghetti to cook. pic.twitter.com/ey7UwxbgI9

— Ryan Maue (@RyanMaue) July 31, 2020

And from Weather.us:

12z ECMWF is a full 10mb weaker with #Isaias as it moves near Nassau tomorrow compared to the 00z run from last night.

New: https://t.co/lnklzlpRnm

Old: https://t.co/Uh5jBm4uit

As a result, the new model run takes the storm into #FLwx Saturday night https://t.co/v9ahiVMrvi

— Weather.us - Weather Forecasts For Professionals (@WeatherdotUS) July 31, 2020

That central pressure of 997 millibars is considerably weaker than yesterday's estimates in the 960's meaning an expected weak cat 1 rather than a high cat 2/low cat 3 = winds at 74mph vs 96 - 115 mph.