11. This intensity is equivalent to a moderate Category 2 hurricane on the United States-based Saffir-Simpson Hurricane Wind Scale . 12. At on November 5, the storm strengthened into a Category 1 hurricane on the Saffir Simpson hurricane wind scale . 13. At 0000 UTC on October 12, Paula strengthened into a Category 1 hurricane on the Saffir Simpson hurricane wind scale . 14. At 1200 UTC on September 28, Nadine re-strengthened into a Category 1 hurricane on the Saffir Simpson hurricane wind scale . 15. The United States uses the Saffir Simpson hurricane wind scale , a 1 5 scale which categorize hurricanes by sustained wind speed. 16. At 0600 UTC on October 17, the system intensified into a Category 2 hurricane on the Saffir Simpson hurricane wind scale . 17. After becoming a tropical storm, Greta intensified slowly due to a strong Category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale . 18. About 48 hours later, the storm resumed strengthening and became a Category 1 hurricane on the modern-day Saffir Simpson hurricane wind scale . 19. At 06 : 00 UTC on September 7, Linda intensified into a Category 1 hurricane on the Saffir Simpson hurricane wind scale . 20. Near the end of the year, Hester became a Category 5 typhoon on the modern-day Saffir Simpson hurricane wind scale south of Guam.