I've made fun of Derek a couple times (here and again here, in a post that exposed my own meteorological failings). But in truth, I tend to look for his weather forecast, because I enjoy his on-air persona.
The good news, of course, is the possibility of more Randi Rico. (Yes, I'm a pathetic Rico groupie.)
But even with more Rico, I'll miss Derek. I hope he does well in Mobile, that the city is good to him, and that he doesn't miss too much having actual seasons (like winter and fall). Be careful, Derek: winter weather advisories are a lot safer than hurricane warnings!