You know, I didn't get the manipulated one, either. I suspect that this came from one of the numerous sites out there that try to play off like they are the official source for hurricane info - just a hunch - and it was admittedly a little humorous, yes, but quite dangerous - if you think about it.
Truly looks as if their original text was tampered with. Notice the amount of lower-case in the bogus version, compared to the original above
Prank Version:
000
Abnt20 Knhc 112110
Twoat
Tropical Weather Outlook
Nws TPC/national Hurricane Center Miami Fl
530 Pm Edt Fri Aug 11 2006
For The North Atlantic...caribbean Sea And The Gulf Of Mexico...
Tropical Storm Formation Is Not Expected Through The 2006 Storm Season
$$
Forecaster Mainelli/beven
There are sites that have automatic text decoders to convert uppercase to lowercase; Weather Underground does such a thing. I wouldn't say it's bogus because of that. However, we get everything that comes down the pipe from the NHC so unless it escaped out somewhere through some other means, I gotta think this one's not for real.