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      Hurricane and Tropical Cyclones

      Tropical Storm

      Extratropical Alpha

      Storm Activity: Sep 14, 2020 - Sep 19, 2020

      Peak Wind
      70 mph
      Lowest Pressure
      992 mb
      Duration
      5 days
      Last Position
      40.6 N 7.6 W

      Storm Track

      Sep 14 – Sep 19
      Storm Category
      1. Tropical Depression < 39 mph
      2. Tropical Storm Peak 39-73 mph
      3. Category 1 74-95 mph
      4. Category 2 96-110 mph
      5. Category 3 111-129 mph
      6. Category 4 130-156 mph
      7. Category 5 157+ mph

      Intensity

      Sustained wind at each observation
      Peak wind
      70 mph
      Peak category
      Tropical Storm
      Lowest pressure
      992 mb

      Sep 19 · 00:00 GMT 35 mph 1,004 mb Subtropical Depression

      Storm Track Statistics

      Sep 19 00:00 GMT 40.6 -7.6 35 mph 1,004 mb Subtropical Depression --
      Sep 18 21:00 GMT 40.3 -8.28 45 mph 999 mb Subtropical Storm --
      Sep 18 18:40 GMT 40 -8.9 50 mph 996 mb Subtropical Storm --
      Sep 18 18:00 GMT 39.9 -9.1 50 mph 996 mb Subtropical Storm --
      Sep 18 15:00 GMT 39.41 -9.79 50 mph 996 mb Subtropical Storm --
      Sep 18 12:00 GMT 38.9 -10.3 50 mph 996 mb Subtropical Storm --
      Sep 18 09:00 GMT 38.41 -10.81 50 mph 996 mb Subtropical Storm --
      Sep 18 06:00 GMT 37.9 -11.4 50 mph 996 mb Subtropical Storm --
      Sep 18 03:00 GMT 37.22 -12.15 50 mph 996 mb Subtropical Storm --
      Sep 18 00:00 GMT 36.7 -13.1 50 mph 996 mb Subtropical Storm --
      Sep 17 21:00 GMT 36.54 -14.35 50 mph 997 mb Subtropical Storm --
      Sep 17 18:00 GMT 36.7 -15.6 45 mph 999 mb Subtropical Storm --
      Sep 17 15:00 GMT 37.15 -16.57 45 mph 1,000 mb Subtropical Storm --
      Sep 17 12:00 GMT 37.7 -17.3 40 mph 1,002 mb Subtropical Storm --
      Sep 17 09:00 GMT 38.03 -17.77 40 mph 1,002 mb Subtropical Storm --
      Sep 17 06:00 GMT 38.3 -18.1 40 mph 1,002 mb Subtropical Storm --
      Sep 17 03:00 GMT 38.57 -18.53 40 mph 1,002 mb Extratropical --
      Sep 17 00:00 GMT 38.9 -18.9 40 mph 1,002 mb Extratropical --
      Sep 16 21:00 GMT 39.37 -19.15 45 mph 1,001 mb Extratropical --
      Sep 16 18:00 GMT 39.9 -19.3 45 mph 1,000 mb Extratropical --
      Sep 16 15:00 GMT 40.4 -19.41 45 mph 1,000 mb Extratropical --
      Sep 16 12:00 GMT 40.9 -19.5 45 mph 1,000 mb Extratropical --
      Sep 16 09:00 GMT 41.4 -19.61 45 mph 1,000 mb Extratropical --
      Sep 16 06:00 GMT 41.9 -19.8 45 mph 1,000 mb Extratropical --
      Sep 16 03:00 GMT 42.4 -20.11 45 mph 1,000 mb Extratropical --
      Sep 16 00:00 GMT 42.9 -20.5 45 mph 1,000 mb Extratropical --
      Sep 15 21:00 GMT 43.39 -20.95 50 mph 999 mb Extratropical --
      Sep 15 18:00 GMT 43.9 -21.4 50 mph 998 mb Extratropical --
      Sep 15 15:00 GMT 44.45 -21.79 55 mph 997 mb Extratropical --
      Sep 15 12:00 GMT 45 -22.1 60 mph 996 mb Extratropical --
      Sep 15 09:00 GMT 45.51 -22.36 65 mph 995 mb Extratropical --
      Sep 15 06:00 GMT 46 -22.5 70 mph 994 mb Extratropical --
      Sep 15 03:00 GMT 46.56 -22.5 70 mph 993 mb Extratropical --
      Sep 15 00:00 GMT 47 -22.4 70 mph 992 mb Extratropical --
      Sep 14 21:00 GMT 47.18 -22.31 65 mph 994 mb Extratropical --
      Sep 14 18:00 GMT 47.2 -22.2 60 mph 996 mb Extratropical --
      Sep 14 15:00 GMT 47.2 -22.1 50 mph 999 mb Extratropical --
      Sep 14 12:00 GMT 47.2 -22 45 mph 1,002 mb Extratropical --

      Learn more about Extratropical Alpha and the 2020 Atlantic hurricane season in our hurricane archive.

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      Level Access
      Glossary