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      Hurricane and Tropical Cyclones

      Tropical Depression

      Unnamed Tropical Depression

      Storm Activity: Dec 25, 1975 - Dec 30, 1975

      Peak Wind
      --
      Lowest Pressure
      996 mb
      Duration
      5 days
      Last Position
      9 N 120.5 E

      Storm Track

      Dec 25 – Dec 30
      Storm Category
      1. Tropical Depression Peak < 39 mph
      2. Tropical Storm 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
      --
      Peak category
      Tropical Depression
      Lowest pressure
      996 mb

      Dec 30 · 06:00 GMT -- 1,006 mb Tropical Depression

      Storm Track Statistics

      Dec 30 06:00 GMT 9 120.5 -- 1,006 mb Tropical Depression --
      Dec 30 03:00 GMT 9 120.25 -- 1,006 mb Tropical Depression --
      Dec 30 00:00 GMT 9 120 -- 1,006 mb Tropical Depression --
      Dec 29 21:00 GMT 9 119.75 -- 1,005 mb Tropical Depression --
      Dec 29 18:00 GMT 9 119.5 -- 1,004 mb Tropical Depression --
      Dec 29 15:00 GMT 9 119.29 -- 1,004 mb Tropical Depression --
      Dec 29 12:00 GMT 9 119 -- 1,004 mb Tropical Depression --
      Dec 29 09:00 GMT 9 118.54 -- 1,003 mb Tropical Depression --
      Dec 29 06:00 GMT 9 118 -- 1,002 mb Tropical Depression --
      Dec 29 03:00 GMT 9.04 117.5 -- 1,002 mb Tropical Depression --
      Dec 29 00:00 GMT 9 117 -- 1,002 mb Tropical Depression --
      Dec 28 21:00 GMT 8.75 116.46 -- 1,002 mb Tropical Depression --
      Dec 28 18:00 GMT 8.5 116 -- 1,002 mb Tropical Depression --
      Dec 28 15:00 GMT 8.42 115.68 -- 1,002 mb Tropical Depression --
      Dec 28 12:00 GMT 8.5 115.5 -- 1,002 mb Tropical Depression --
      Dec 28 09:00 GMT 8.72 115.46 -- 1,001 mb Tropical Depression --
      Dec 28 06:00 GMT 9 115.5 -- 1,000 mb Tropical Depression --
      Dec 28 03:00 GMT 9.24 115.54 -- 1,000 mb Tropical Depression --
      Dec 28 00:00 GMT 9.4 115.5 -- 1,000 mb Tropical Depression --
      Dec 27 21:00 GMT 9.43 115.25 -- 998 mb Unknown --
      Dec 27 18:00 GMT 9.4 115 -- 996 mb Unknown --
      Dec 27 15:00 GMT 9.33 115 -- 996 mb Unknown --
      Dec 27 12:00 GMT 9.4 115 -- 996 mb Unknown --
      Dec 27 09:00 GMT 9.83 114.79 -- 996 mb Unknown --
      Dec 27 06:00 GMT 10.3 114.5 -- 996 mb Unknown --
      Dec 27 03:00 GMT 10.45 114.25 -- 996 mb Unknown --
      Dec 27 00:00 GMT 10.6 114 -- 996 mb Unknown --
      Dec 26 21:00 GMT 11.07 113.71 -- 997 mb Unknown --
      Dec 26 18:00 GMT 11.5 113.5 -- 998 mb Unknown --
      Dec 26 15:00 GMT 11.59 113.43 -- 998 mb Unknown --
      Dec 26 12:00 GMT 11.5 113.5 -- 998 mb Unknown --
      Dec 26 09:00 GMT 11.37 113.75 -- 1,000 mb Tropical Depression --
      Dec 26 06:00 GMT 11.2 114 -- 1,002 mb Tropical Depression --
      Dec 26 03:00 GMT 11.11 114.01 -- 1,002 mb Tropical Depression --
      Dec 26 00:00 GMT 11 114 -- 1,002 mb Tropical Depression --
      Dec 25 21:00 GMT 10.77 114.2 -- 1,003 mb Tropical Depression --
      Dec 25 18:00 GMT 10.5 114.4 -- 1,004 mb Tropical Depression --
      Dec 25 15:00 GMT 10.25 114.33 -- 1,005 mb Tropical Depression --
      Dec 25 12:00 GMT 10 114.4 -- 1,006 mb Tropical Depression --
      Dec 25 09:00 GMT 9.75 114.91 -- 1,006 mb Tropical Depression --
      Dec 25 06:00 GMT 9.5 115.7 -- 1,006 mb Tropical Depression --

      Learn more about Unnamed Tropical Depression and the 1975 Western Pacific hurricane season in our hurricane archive.

      View All Hurricanes and Tropical Cyclones
      Level Access
      Glossary