There's an ocean and atmospheric science lab on the explorer and I took the tour. I asked the guy who ran the lab about weather diversions...he said in nearly 100 voyages, explorer had diverted once. Although I think this week, she will probably divert around Isadore to get back to Miami safely. Josephine is so far out to sea, she will cause no problems. Isadore should be out of the way of your departure and beyond your cruise track by the time you get into the area.