Original: However, weakening occurred again due to an eyewall replacement cycle, and at 0330 UTC on September 11 Ivan passed 23 miles (37 km) south of Portland Point, Jamaica, its closest approach, with winds of 150 mph (240 km/h).
Simplified: However, the storm weakened again beause of another eyewall replacement cycle, and at 0330 UTC on September 11 Ivan passed 23 miles (37 km) south of Portland Point, Jamaica, its closest approach, with winds of 150 mph (240 km/h).