Hurricane Melissa has strengthened to a Category 5 storm and is expected to produce catastrophic floods and heavy infrastructure damage in Jamaica.Flash floods are projected to sweep through Jamaica on Monday and into Tuesday,

Only 81 hurricanes have struck as Category 4 or higher since 1851, or about one every other year on average. A couple have crippled multiple points at that strength. Irma, in 2017, managed to hit five countries as a Category 4 or 5 — the most of any storm in the Atlantic.