The 1921 hurricane that hit the Tampa Bay region split Hog island (located off of Dunedin, FL) into two islands - Caladesi Island and Honeymoon Island. The pass created is known as Hurricane Pass.

That was a Category 4 storm. I researched that event as part of a geomorphology paper I was writing.www.wtsp.com/article/entertainment/places/bobby-lewis-on-the-road/dunedin-tampa-bay-hurricane/67-f84309cc-b6a8-4488-8e71-0942e27b15a2