Simplify the following text for a Grade 11 native English-speaking person.
Original: The second of three catastrophic Category 5 hurricanes to make landfall in the United States during the 20th century ( the others being 1935 's Labor Day hurricane and 1992 's Hurricane Andrew ) , which it did near the mouth of the Mississippi River on the night of August 17 , Camille was the only Atlantic hurricane to exhibit officially recorded sustained wind speeds of at least 190 m until Allen equaled that number in 1980 , and remains the only Atlantic hurricane in recorded history to make landfall with wind speeds at or above such level .
Simplified: Camille was the second of three Category 5 hurricanes to make landfall in the United States during the 20th century , which it did near the mouth of the Mississippi River on the night of August 17 , resulting in catastrophic damage . Camille was the only Atlantic hurricane with official winds reported to reach 190 mph until Allen equalled that number in 1980 .