A meteorology student I know from online says that the drop in pressure is amazing, it isn't supposed to be able to happen that way. Wilma was supposed to become a cat 3 and was still at the cat 2 stage at the 11 PM report last night from the NOAA, and then it was at cat 5 stage at the 2 AM report from the NOAA this morning.
See:
http://www.nws.noaa.gov/wwamap/wwatxtget.php?cwa=usa&wwa=hurricane%20local%20statement for what the NOAA is currently saying about Wilma.
PS Hurricanes don't get names that start with Q, U, X, Y or Z. It's just easier, and they need to have a pool of names for six years. The names are rotated until they are retired. Andew, Camille and Katrina are retired; I suppose there are others that are retired but I know of those 3 for sure. Beyond W, they go to Greek letters. They have never had to do that before in the over 150 years that storms have been tracked, but this might be the year. And, this year ties the record for the most storms in a season, set in the 30s. The Atlantic hurricane season is officially from the first of June to the 30th of November, so there's another, gulp, 6 weeks in which we could very well have at least 1 more named storm.
How hurricanes get their names:
http://www.weather.com/newscenter/topstories/20050601hurricanenames.html
PPS From that link, more retired names:
Charley
Floyd
Frances
Ivan
Jeanne
Lenny
PPS If you want to get a jump on things and really see how hurricanes form, they start with waves from western Africa, so check out the Africa satellite page at
www.weather.com , which is:
http://www.weather.com/maps/news/atlstorm24/africasatellite_large.html