Storm Activity: Sep 17, 1975 - Sep 24, 1975
Sep 24 · 00:00 GMT -- 1,002 mb Tropical Depression
| Sep 24 | 00:00 GMT | 24 | 115 | -- | 1,002 mb | Tropical Depression | -- |
| Sep 23 | 21:00 GMT | 23.66 | 115.14 | -- | 997 mb | Tropical Depression | -- |
| Sep 23 | 18:00 GMT | 23.5 | 115.5 | -- | 992 mb | Tropical Depression | -- |
| Sep 23 | 15:00 GMT | 23.6 | 116.21 | -- | 988 mb | Unknown | -- |
| Sep 23 | 12:00 GMT | 23.7 | 117 | -- | 985 mb | Unknown | -- |
| Sep 23 | 09:00 GMT | 23.5 | 117.54 | -- | 985 mb | Unknown | -- |
| Sep 23 | 06:00 GMT | 23.2 | 118 | -- | 985 mb | Unknown | -- |
| Sep 23 | 03:00 GMT | 22.91 | 118.52 | -- | 985 mb | Unknown | -- |
| Sep 23 | 00:00 GMT | 22.7 | 119 | -- | 985 mb | Unknown | -- |
| Sep 22 | 21:00 GMT | 22.67 | 119.41 | -- | 980 mb | Unknown | -- |
| Sep 22 | 18:00 GMT | 22.7 | 119.8 | -- | 975 mb | Unknown | -- |
| Sep 22 | 15:00 GMT | 22.65 | 120.21 | -- | 970 mb | Unknown | -- |
| Sep 22 | 12:00 GMT | 22.6 | 120.7 | -- | 965 mb | Unknown | -- |
| Sep 22 | 09:00 GMT | 22.6 | 121.31 | -- | 957 mb | Unknown | -- |
| Sep 22 | 06:00 GMT | 22.6 | 122 | -- | 950 mb | Unknown | -- |
| Sep 22 | 03:00 GMT | 22.53 | 122.69 | -- | 950 mb | Unknown | -- |
| Sep 22 | 00:00 GMT | 22.5 | 123.4 | -- | 950 mb | Unknown | -- |
| Sep 21 | 21:00 GMT | 22.6 | 124.1 | -- | 950 mb | Unknown | -- |
| Sep 21 | 18:00 GMT | 22.7 | 124.8 | -- | 950 mb | Unknown | -- |
| Sep 21 | 15:00 GMT | 22.67 | 125.49 | -- | 952 mb | Unknown | -- |
| Sep 21 | 12:00 GMT | 22.6 | 126.2 | -- | 955 mb | Unknown | -- |
| Sep 21 | 09:00 GMT | 22.59 | 126.93 | -- | 957 mb | Unknown | -- |
| Sep 21 | 06:00 GMT | 22.5 | 127.7 | -- | 960 mb | Unknown | -- |
| Sep 21 | 03:00 GMT | 22.24 | 128.57 | -- | 965 mb | Unknown | -- |
| Sep 21 | 00:00 GMT | 21.9 | 129.4 | -- | 970 mb | Unknown | -- |
| Sep 20 | 21:00 GMT | 21.6 | 130.02 | -- | 972 mb | Unknown | -- |
| Sep 20 | 18:00 GMT | 21.3 | 130.6 | -- | 975 mb | Unknown | -- |
| Sep 20 | 15:00 GMT | 21.02 | 131.28 | -- | 975 mb | Unknown | -- |
| Sep 20 | 12:00 GMT | 20.7 | 132 | -- | 975 mb | Unknown | -- |
| Sep 20 | 09:00 GMT | 20.25 | 132.77 | -- | 977 mb | Unknown | -- |
| Sep 20 | 06:00 GMT | 19.8 | 133.5 | -- | 980 mb | Unknown | -- |
| Sep 20 | 03:00 GMT | 19.5 | 134.14 | -- | 980 mb | Unknown | -- |
| Sep 20 | 00:00 GMT | 19.2 | 134.7 | -- | 980 mb | Unknown | -- |
| Sep 19 | 21:00 GMT | 18.77 | 135.24 | -- | 982 mb | Unknown | -- |
| Sep 19 | 18:00 GMT | 18.3 | 135.6 | -- | 985 mb | Unknown | -- |
| Sep 19 | 15:00 GMT | 17.83 | 135.67 | -- | 985 mb | Unknown | -- |
| Sep 19 | 12:00 GMT | 17.4 | 135.6 | -- | 985 mb | Unknown | -- |
| Sep 19 | 09:00 GMT | 17 | 135.55 | -- | 987 mb | Unknown | -- |
| Sep 19 | 06:00 GMT | 16.7 | 135.6 | -- | 990 mb | Unknown | -- |
| Sep 19 | 03:00 GMT | 16.54 | 135.88 | -- | 990 mb | Unknown | -- |
| Sep 19 | 00:00 GMT | 16.5 | 136.3 | -- | 990 mb | Unknown | -- |
| Sep 18 | 21:00 GMT | 16.51 | 136.78 | -- | 992 mb | Unknown | -- |
| Sep 18 | 18:00 GMT | 16.6 | 137.2 | -- | 994 mb | Unknown | -- |
| Sep 18 | 15:00 GMT | 16.75 | 137.38 | -- | 996 mb | Unknown | -- |
| Sep 18 | 12:00 GMT | 16.9 | 137.5 | -- | 998 mb | Unknown | -- |
| Sep 18 | 09:00 GMT | 16.99 | 137.68 | -- | 1,000 mb | Unknown | -- |
| Sep 18 | 06:00 GMT | 17 | 138 | -- | 1,002 mb | Unknown | -- |
| Sep 18 | 03:00 GMT | 16.92 | 138.52 | -- | 1,003 mb | Unknown | -- |
| Sep 18 | 00:00 GMT | 16.8 | 139.2 | -- | 1,004 mb | Unknown | -- |
| Sep 17 | 21:00 GMT | 16.69 | 140 | -- | 1,005 mb | Tropical Depression | -- |
| Sep 17 | 18:00 GMT | 16.6 | 140.8 | -- | 1,006 mb | Tropical Depression | -- |
| Sep 17 | 15:00 GMT | 16.63 | 141.44 | -- | 1,006 mb | Tropical Depression | -- |
| Sep 17 | 12:00 GMT | 16.6 | 142 | -- | 1,006 mb | Tropical Depression | -- |
| Sep 17 | 09:00 GMT | 16.37 | 142.51 | -- | 1,006 mb | Tropical Depression | -- |
| Sep 17 | 06:00 GMT | 16 | 143 | -- | 1,006 mb | Tropical Depression | -- |
Learn more about Tropical Depression Betty and the 1975 Western Pacific hurricane season in our hurricane archive.
View All Hurricanes and Tropical Cyclones