I could see it VERY clearly here from Daytona Beach. I didn't realize the launch was today and the phone rings and my buddy is like "what rocket am I looking at?" and I said "damnit, that's gotta be the Delta IV
I've been waiting for!". Scramble outside the door and see the huge white plume of smoke, which ended oddly a little ways up the sky, then it was just clear and you could see the rockets fire clearly up above that. I'm assuming the plume stopped where the seperation occurred, but it looked kinda low.
Still, an impressive sight, wish I had caught the whole thing. Very happy that it was successful, especially after all the delays.