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      Hurricane and Tropical Cyclones
      Tropical Depression

      Unnamed Tropical Depression

      Storm Activity: Aug 14, 1977 - Aug 23, 1977

      Peak Wind
      35 mph
      Lowest Pressure
      996 mb
      Duration
      9 days
      Last Position
      39.5 N 175 E

      Storm Track

      Aug 14 – Aug 23
      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
      35 mph
      Peak category
      Tropical Depression
      Lowest pressure
      996 mb

      Aug 23 · 12:00 GMT 25 mph 1,002 mb Extratropical

      Storm Track Statistics
      Aug 23 12:00 GMT 39.5 175 25 mph 1,002 mb Extratropical --
      Aug 23 09:00 GMT 39.51 173.26 25 mph 1,001 mb Extratropical --
      Aug 23 06:00 GMT 39.5 171.5 25 mph 1,000 mb Extratropical --
      Aug 23 03:00 GMT 39.48 169.71 30 mph 1,000 mb Extratropical --
      Aug 23 00:00 GMT 39.5 168 35 mph 1,000 mb Extratropical --
      Aug 22 21:00 GMT 39.57 166.46 35 mph 1,000 mb Extratropical --
      Aug 22 18:00 GMT 39.7 165 35 mph 1,000 mb Extratropical --
      Aug 22 15:00 GMT 39.85 163.39 35 mph 1,000 mb Extratropical --
      Aug 22 12:00 GMT 40 162 35 mph 1,000 mb Extratropical --
      Aug 22 09:00 GMT 40.1 161.14 35 mph 1,000 mb Extratropical --
      Aug 22 06:00 GMT 40.2 160.5 35 mph 1,000 mb Extratropical --
      Aug 22 03:00 GMT 40.36 159.75 35 mph 1,000 mb Extratropical --
      Aug 22 00:00 GMT 40.5 159 35 mph 1,000 mb Extratropical --
      Aug 21 21:00 GMT 40.52 158.25 35 mph 999 mb Extratropical --
      Aug 21 18:00 GMT 40.5 157.5 35 mph 998 mb Extratropical --
      Aug 21 15:00 GMT 40.5 156.75 35 mph 997 mb Extratropical --
      Aug 21 12:00 GMT 40.5 156 35 mph 996 mb Extratropical --
      Aug 21 09:00 GMT 40.5 155.25 35 mph 996 mb Extratropical --
      Aug 21 06:00 GMT 40.5 154.5 35 mph 996 mb Extratropical --
      Aug 21 03:00 GMT 40.51 153.79 35 mph 996 mb Extratropical --
      Aug 21 00:00 GMT 40.5 153 35 mph 996 mb Extratropical --
      Aug 20 21:00 GMT 40.42 152 35 mph 996 mb Extratropical --
      Aug 20 18:00 GMT 40.3 151 35 mph 996 mb Extratropical --
      Aug 20 15:00 GMT 40.15 150.14 35 mph 997 mb Extratropical --
      Aug 20 12:00 GMT 40 149.5 35 mph 998 mb Extratropical --
      Aug 20 09:00 GMT 39.9 149.18 35 mph 999 mb Extratropical --
      Aug 20 06:00 GMT 39.8 149 35 mph 1,000 mb Extratropical --
      Aug 20 03:00 GMT 39.65 148.77 35 mph 1,001 mb Extratropical --
      Aug 20 00:00 GMT 39.5 148.5 35 mph 1,002 mb Extratropical --
      Aug 19 21:00 GMT 39.4 148.12 35 mph 1,002 mb Extratropical --
      Aug 19 18:00 GMT 39.3 147.7 35 mph 1,002 mb Extratropical --
      Aug 19 15:00 GMT 39.17 147.37 35 mph 1,002 mb Extratropical --
      Aug 19 12:00 GMT 39 147 35 mph 1,002 mb Extratropical --
      Aug 19 09:00 GMT 38.77 146.52 30 mph 1,003 mb Extratropical --
      Aug 19 06:00 GMT 38.5 146 25 mph 1,004 mb Extratropical --
      Aug 19 03:00 GMT 38.25 145.54 25 mph 1,004 mb Extratropical --
      Aug 19 00:00 GMT 38 145 20 mph 1,004 mb Extratropical --
      Aug 18 21:00 GMT 37.75 144.29 20 mph 1,004 mb Extratropical --
      Aug 18 18:00 GMT 37.5 143.5 20 mph 1,004 mb Extratropical --
      Aug 18 15:00 GMT 37.29 142.79 20 mph 1,004 mb Extratropical --
      Aug 18 12:00 GMT 37 142 20 mph 1,004 mb Extratropical --
      Aug 18 09:00 GMT 36.54 140.96 20 mph 1,004 mb Extratropical --
      Aug 18 06:00 GMT 36 140 20 mph 1,004 mb Extratropical --
      Aug 18 03:00 GMT 35.5 139.46 20 mph 1,004 mb Extra-Tropical Low --
      Aug 18 00:00 GMT 35 139 20 mph 1,004 mb Extra-Tropical Low --
      Aug 17 21:00 GMT 34.48 138.31 20 mph 1,003 mb Extra-Tropical Low --
      Aug 17 18:00 GMT 34 137.6 20 mph 1,002 mb Extra-Tropical Low --
      Aug 17 15:00 GMT 33.6 137.01 20 mph 1,001 mb Extra-Tropical Low --
      Aug 17 12:00 GMT 33.3 136.5 20 mph 1,000 mb Extra-Tropical Low --
      Aug 17 09:00 GMT 33.16 136.06 20 mph 1,000 mb Extra-Tropical Low --
      Aug 17 06:00 GMT 33 135.7 20 mph 1,000 mb Extra-Tropical Low --
      Aug 17 03:00 GMT 32.63 135.29 25 mph 999 mb Tropical Depression --
      Aug 17 00:00 GMT 32.2 135.1 25 mph 998 mb Tropical Depression --
      Aug 16 21:00 GMT 31.83 135.3 30 mph 997 mb Tropical Depression --
      Aug 16 18:00 GMT 31.5 135.7 35 mph 996 mb Tropical Depression --
      Aug 16 15:00 GMT 31.23 136.03 35 mph 996 mb Tropical Depression --
      Aug 16 12:00 GMT 31 136.5 35 mph 996 mb Tropical Depression --
      Aug 16 09:00 GMT 30.82 137.16 35 mph 996 mb Tropical Depression --
      Aug 16 06:00 GMT 30.5 138 35 mph 996 mb Tropical Depression --
      Aug 16 03:00 GMT 29.79 139.08 35 mph 996 mb Tropical Depression --
      Aug 16 00:00 GMT 29 140 35 mph 996 mb Tropical Depression --
      Aug 15 21:00 GMT 28.46 140.36 30 mph 996 mb Tropical Depression --
      Aug 15 18:00 GMT 28 140.5 25 mph 996 mb Tropical Depression --
      Aug 15 15:00 GMT 27.47 140.71 25 mph 996 mb Tropical Depression --
      Aug 15 12:00 GMT 27 141 25 mph 996 mb Tropical Depression --
      Aug 15 09:00 GMT 26.67 141.51 25 mph 996 mb Extra-Tropical Low --
      Aug 15 06:00 GMT 26.4 142.1 20 mph 996 mb Extra-Tropical Low --
      Aug 15 03:00 GMT 26.12 142.7 20 mph 996 mb Extra-Tropical Low --
      Aug 15 00:00 GMT 25.8 143.2 20 mph 996 mb Extra-Tropical Low --
      Aug 14 21:00 GMT 25.43 143.45 -- 996 mb Extra-Tropical Low --
      Aug 14 18:00 GMT 25 143.6 -- 996 mb Extra-Tropical Low --
      Aug 14 15:00 GMT 24.52 143.78 -- 996 mb Extra-Tropical Low --
      Aug 14 12:00 GMT 24 144 -- 996 mb Extra-Tropical Low --

      Learn more about Unnamed Tropical Depression and the 1977 Western Pacific hurricane season in our hurricane archive.

      View All Hurricanes and Tropical Cyclones
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