Airports have been closed and shelters have been activated.  KINGSTON: Hurricane Melissa has developed into a Category 4 hurricane with maximum sustained winds of up to 140 mph (220kmh) and is expected to strengthen as it heads towards Jamaica, the US National Hurricane Center (NHC) said on Sunday (Oct 26). Melissa is about 110 miles (180 km) south of Kingston and expected to make landfall in Jamaica Monday night or Tuesday morning and hit southeastern Cuba late Tuesday, the NHC said, with