Paul Beckwith described the mechanism well. The hurricane picks up energy from warm surface water. If the deeper water that comes to the surface is cold that will suppress the formation of another hurricane. If, however, the water is warm a new hurricane can form
Tropical Storm Jose forms directly behind Hurricane Irma in Atlantic
ABC Action News,
5 September, 2017
TAMPA, Fla. - At 11 a.m. on Tuesday, the National Hurricane Center announced that Tropical Storm Jose has formed in the Atlantic ocean right behind Hurricane Irma.
The center of Tropical Storm Jose was located near latitude 12.3 North, longitude 39.1 West. Jose is moving toward the west-northwest near 13 mph (20 km/h) and a movement toward the west or west-northwest at a slightly faster rate of forward speed is expected during the next two days.
Maximum sustained winds are near 45 mph (65 km/h) with higher gusts. Some strengthening is forecast during the next 48 hours and Jose could become a hurricane by Friday. Tropical-storm-force winds extend outward up to 45 miles (75 km) from the center.
Just before 11 a.m. on Tuesday, the National Hurricane Center said that "Dangerous Irma" has intensified to a Category 5 storm with 180 mph winds.
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