(7) What was the largest number of hurricanes in the Atlantic Ocean at the same time? Four hurricanes occurred simultaneously on two occasions. The first occasion was August 22, 1893, and one of these eventually killed 1,000-2,000 people in Georgia‑South Carolina. The second occurrence was September 25, 1998,
when Georges, Ivan, Jeanne and Karl persisted into September 27, 1998 as hurricanes. Georges ended up taking the lives of thousands in Haiti. In 1971 from September 10 to 12, there were five tropical cyclones at the same time; however, while most of these ultimately
achieved hurricane intensity, there were never more than two hurricanes at any one time.
(8) How many hurricanes have there been in each month? Table 9a, adapted from Neumann et al. (1999), shows the total and average number of tropical storms, and those which became hurricanes
and major hurricanes, by month, for the period 1851‑2006. Table 9b displays the same statistics from 1966-2006 corresponding to the geostationary satellite era. Table 9a also adds the monthly total and average number of hurricanes to strike the U. S. since 1851.
