Wind field calculations in HAZUS-MH

Shawn Lewers from the FLHUG has a question about the wind field calculations in HAZUS-MH. He reports he can create a scenario based on the provided historic storm data that came with the package and get results that are to be expected for a given storm. This is in terms of say peak gust numbers that can be verified from other sources at NOAA or NHS which would make him have confidence in the model. However, when he creates a scenario by inputting data that approximates what is known about say Hurricane OPAL (1995) or Hurricane Dennis (2005) and give it a similar track, translation speeds, max winds, radius and pressure and the results are radically different. Also when he imports storm data from the .stm files he gets very high numbers. For example, modeled wind speeds of over 300 MPH for Dennis in the Eglin AFB area.

Shawn is asking if anyone has any suggestions or explanations for these obviously spurious results?