Good day,
Was it these? The first time I saw these pics was in 2003 (and that's when I saved them as well), and they were supposedly pics of Isabel. Since then, I've seen the same two pics attributed to Katrina.
I am not sure about those two pictures, but those are CLEARLY of SHELF CLOUDS and are NOT directly associated with a hurricane.
These MIGHT be shelf clouds associated with feeder bands in the fringes of a hurricane, but the ship picture does not really justify a hurricane as if that was open ocean, and a hurricane was close enough to cause lines of storms, there should be large waves and / or swell present - The sea is nearly smooth in that shot.
Mike Hollingshead's photos of supercells were indeed passed off as Katrina pictures as (whoever used them) was supposed to present the fear and death in Katrina with some SPECTACULAR storm picture to make a real impact.
For the average family and even my grandparents, that would be like "wow, that Katrina looked like that?"
But to a trained eye, and storm chaser / expert, we all recognize what these pictures are, and supercells / tornados are far removed from hurricanes and typhoons in size, structure, and formation.
Being a hurricane chaser myself, and chased many tropical systems in my life, I have NEVER seen really good structure associated with any tropical cyclone storms.
The storms in a tropical system are often rain-wrapped, have almost no structure, any supercell storms within are short lived with shallow mesocyclones, and look nothing like those shelf cloud pictures, let alone a supercell shot from Mike Hollinghead.
To see structure in a hurricane, you need to be in space looking down or at extremely high altitude (40,000 feet or higher), or in the eye looking at the eyewall cloud.
In the picture above, this is the BEST shot I have of a line of storms associated with a tropical cyclone in all my years of chasing tropical systems.
In the picture above, this is a SUPERCELL storm in Hurricane Jeanne in 2004. It looks like "mush" but was tornado warned - Can you pick out the wall cloud and clear slot? Look closely - Hint: Just to the left of the pole.