Ivan set several new records for intensity at low latitudes. When Ivan first became a Category 3 hurricane on September 3 (1800 UTC), it was centered near 10.2 degrees north from the equator. This is the most southerly location on record for a major hurricane in the Atlantic basin.[1] Just six hours later, Ivan also became the most southerly Category 4 hurricane on record in the Atlantic basin when it reached that intensity while located at 10.6 degrees north.[6] Finally, at midnight (UTC) on September 9 while centered at 13.7 degrees north, Ivan became the most southerly Category 5 hurricane on record in the Atlantic basin.[6] Hurricane Felix nearly matched this record in 2007, becoming a Category 5 hurricane at 13.8 degrees north latitude.[8]
Ivan had the world record of 33 (32 consecutive) six-hour periods with an intensity at or above Category 4 strength. This record was broken two years later by Pacific Hurricane/Typhoon Ioke, which had 36 (33 consecutive) six-hour periods at Category 4 strength. This contributed to Ivan's total Accumulated Cyclone Energy (ACE) of 70.38.[9]
Scientists from the Naval Research Laboratory at Stennis Space Center, Mississippi have used a computer model to predict that, at the height of the storm, the maximum wave height within Ivan's eyewall reached 131 feet (40 m).[10]
Ivan is the named storm with the highest ACE ever in the Atlantic, only behind the 1899 San Ciriaco hurricane.
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Subject: Hurricane Felix 
