The currently accepted reason for this more intense upcoming hurricane season is the warming weather trend that has been happening the past few years (AKA the weakening of El Nino).
If you're interested in tracking some of these storms, a good website I found was Moreweather.com's Atlantic Basin Tropical Weather Page. Personally, I love Weather Underground as most of you could probably tell by the widget on the uppermost right corner of this page.
If you're interested in how the Atlantic Basin hurricanes are indices of climate change, thats available here. I didn't read it but it looks interesting if you have the attention span.