Complex sentence: Hurricane Iris in 2001 was the most damaging hurricane in Belize since Hurricane Hattie in 1961, and the second strongest storm of the 2001 Atlantic hurricane season, behind Hurricane Michelle.
Split into simpler sentences: Hurricane Iris in 2001 was the most damaging hurricane in Belize since Hurricane Hattie in 1961. Iris was the second strongest storm of the 2001 Atlantic hurricane season, behind Hurricane Michelle.