Hurricane Milton has, however, become a truly dangerous storm. Related: Royal Caribbean shares an urgent Hurricane Milton warning "Data from both Hurricane Hunter aircraft indicate that Milton has strengthened to a category 4 hurricane.

While Royal Caribbean Chief Meteorologist Craig Setzer's core job is helping the cruise line make decisions for its ships, he also has a greater responsibility to humanity. Meteorologists may not be doctors but in a time of dangerous storms,

The cruise line has made every effort to keep its passengers in the loop as to what's happening with the developing storm.