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      Hurricane and Tropical Cyclones

      Tropical Storm

      Unnamed Tropical Depression

      Storm Activity: Sep 22, 2021 - Sep 23, 2021

      Peak Wind
      40 mph
      Lowest Pressure
      --
      Duration
      24 hours
      Last Position
      15.2 N 108.9 E

      Storm Track

      Sep 22 – Sep 23
      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
      40 mph
      Peak category
      Tropical Storm
      Lowest pressure
      --

      Sep 23 · 12:00 GMT 40 mph -- Tropical Storm

      Storm Track Statistics

      Sep 23 12:00 GMT 15.2 108.9 40 mph -- Tropical Storm --
      Sep 23 06:00 GMT 14.3 110.2 40 mph -- Tropical Storm --
      Sep 23 00:00 GMT 13.5 111.2 35 mph -- Tropical Depression --
      Sep 22 18:00 GMT 13 112.4 30 mph -- Tropical Depression --
      Sep 22 12:00 GMT 12.8 113.3 30 mph -- Tropical Depression --

      Learn more about Unnamed Tropical Depression and the 2021 Western Pacific hurricane season in our hurricane archive.

      View All Hurricanes and Tropical Cyclones
      Level Access
      Glossary