Apologies for the fuzz, the I-Phone zoom is not all that great. Picture was taken today about 12:15 just west of Ocala, Fl. The writing on the side says......
US NAVY
Faster we go the behinder we get sometimes.
I understand the Navy is doing live bombing practice at Pine Castle Range in Ocala this week.
I'd bet that blimp was en route to observe bomb results.