 Louisiana Radio Network, I'm Brooke Thorrington. Hurricane Burl is a Category 4 storm as it moves into the Caribbean. Burl is the first hurricane in what is expected to be a very busy season. LSU climatologist Barry Kime says this early start is due to factors such as abnormally warm sea surface temperatures. I mean, the sea surface temperatures right now are kind of the average sea surface temperatures for early to mid-August.