Hurricane Dennis resources--the links and graphics are self-updating for handy reference:NHC Hurricane Public Advisory Updates Currently published every two hours 1A, 3A, 5A, 7A, 9A, 11A, 1P...etc. ET. It may drop back to every three hours 11A, 2P, etc. NHC Hurricane Discussion Updates Published every 6 hours 5A, 11A, 5P, 11P ET Gulf of Mexico IR LoopGulf of Mexico Visible Loop (Only works during daylight hours) Mobile AL Extended Radar LoopNorthWest FL Extended Radar LoopTampa Bay Extended Radar SE US Radar still image