Here's a new experimental version of the HAFS-B hurricane model that is showing a stronger storm than the current HAFS-B model, which is likely underdoing the storm intensity. This image is for...

... 5 PM EDT on Wednesday with the center north of Puerto Rico. In the 2nd image, you can see that this new experimental version of the HAFS-B model eventually deepens it to a very strong hurricane at below 960 mb, similar to what the HWRF model is showing (3rd image).