Simplify the following text for a Grade 9 native English-speaking person.
Original: There were five major hurricanes for the season , and as many as five storms existed from August 22 to September 1 -- Humberto , Iris , Jerry , Karen , and Luis .
Simplified: Luis was one of the four tropical cyclones active from August 22 to September 1 along with Humberto , Iris , Jerry , and Karen .