Storm Activity: Aug 29, 1955 - Sep 8, 1955
Sep 8 · 18:00 GMT -- 998 mb Extratropical
| Sep 8 | 18:00 GMT | 60 | 178.2 | -- | 998 mb | Extratropical | -- |
| Sep 6 | 21:00 GMT | 55.02 | -179.77 | -- | 969 mb | Extratropical | -- |
| Sep 6 | 18:00 GMT | 54.6 | 179.5 | -- | 968 mb | Extratropical | -- |
| Sep 6 | 15:00 GMT | 54.19 | 178.75 | -- | 968 mb | Extratropical | -- |
| Sep 6 | 12:00 GMT | 53.8 | 178 | -- | 968 mb | Extratropical | -- |
| Sep 6 | 09:00 GMT | 53.41 | 177.31 | -- | 968 mb | Extratropical | -- |
| Sep 6 | 06:00 GMT | 53 | 176.6 | -- | 968 mb | Extratropical | -- |
| Sep 6 | 03:00 GMT | 52.49 | 175.83 | -- | 968 mb | Extratropical | -- |
| Sep 6 | 00:00 GMT | 52 | 175 | -- | 968 mb | Extratropical | -- |
| Sep 5 | 21:00 GMT | 51.61 | 174.09 | -- | 969 mb | Extratropical | -- |
| Sep 5 | 18:00 GMT | 51.3 | 173.2 | -- | 970 mb | Extratropical | -- |
| Sep 5 | 15:00 GMT | 51.03 | 172.47 | -- | 972 mb | Extratropical | -- |
| Sep 5 | 12:00 GMT | 50.8 | 171.8 | -- | 974 mb | Extratropical | -- |
| Sep 5 | 09:00 GMT | 50.55 | 171.1 | -- | 975 mb | Extratropical | -- |
| Sep 5 | 06:00 GMT | 50.3 | 170.4 | -- | 976 mb | Extratropical | -- |
| Sep 5 | 03:00 GMT | 50.08 | 169.76 | -- | 979 mb | Extratropical | -- |
| Sep 5 | 00:00 GMT | 49.8 | 169 | -- | 982 mb | Extratropical | -- |
| Sep 4 | 21:00 GMT | 49.36 | 168.07 | -- | 984 mb | Extratropical | -- |
| Sep 4 | 18:00 GMT | 48.9 | 166.9 | -- | 986 mb | Extratropical | -- |
| Sep 4 | 15:00 GMT | 48.53 | 165.5 | -- | 986 mb | Extratropical | -- |
| Sep 4 | 12:00 GMT | 48.2 | 163.9 | -- | 986 mb | Extratropical | -- |
| Sep 4 | 09:00 GMT | 47.87 | 162.2 | -- | 985 mb | Extratropical | -- |
| Sep 4 | 06:00 GMT | 47.5 | 160.5 | -- | 984 mb | Extratropical | -- |
| Sep 4 | 03:00 GMT | 47.23 | 159.06 | -- | 983 mb | Unknown | -- |
| Sep 4 | 00:00 GMT | 46.6 | 157.5 | -- | 982 mb | Unknown | -- |
| Sep 3 | 21:00 GMT | 45.15 | 155.48 | -- | 981 mb | Unknown | -- |
| Sep 3 | 18:00 GMT | 43.4 | 153.6 | -- | 980 mb | Unknown | -- |
| Sep 3 | 15:00 GMT | 41.86 | 152.22 | -- | 980 mb | Unknown | -- |
| Sep 3 | 12:00 GMT | 40.5 | 151.2 | -- | 980 mb | Unknown | -- |
| Sep 3 | 09:00 GMT | 39.45 | 150.48 | -- | 980 mb | Unknown | -- |
| Sep 3 | 06:00 GMT | 38.5 | 149.8 | -- | 980 mb | Unknown | -- |
| Sep 3 | 03:00 GMT | 37.37 | 148.79 | -- | 977 mb | Unknown | -- |
| Sep 3 | 00:00 GMT | 36.2 | 147.8 | -- | 975 mb | Unknown | -- |
| Sep 2 | 21:00 GMT | 35.08 | 147.04 | -- | 977 mb | Unknown | -- |
| Sep 2 | 18:00 GMT | 34 | 146.5 | -- | 980 mb | Unknown | -- |
| Sep 2 | 15:00 GMT | 32.95 | 146.12 | -- | 982 mb | Unknown | -- |
| Sep 2 | 12:00 GMT | 32 | 146 | -- | 985 mb | Unknown | -- |
| Sep 2 | 09:00 GMT | 31.21 | 146.13 | -- | 985 mb | Unknown | -- |
| Sep 2 | 06:00 GMT | 30.5 | 146.4 | -- | 986 mb | Unknown | -- |
| Sep 2 | 03:00 GMT | 29.71 | 146.72 | -- | 987 mb | Unknown | -- |
| Sep 2 | 00:00 GMT | 29 | 146.9 | -- | 988 mb | Unknown | -- |
| Sep 1 | 21:00 GMT | 28.46 | 146.68 | -- | 989 mb | Unknown | -- |
| Sep 1 | 18:00 GMT | 28 | 146.4 | -- | 990 mb | Unknown | -- |
| Sep 1 | 15:00 GMT | 27.5 | 146.38 | -- | 990 mb | Unknown | -- |
| Sep 1 | 12:00 GMT | 27 | 146.5 | -- | 990 mb | Unknown | -- |
| Sep 1 | 09:00 GMT | 26.51 | 146.64 | -- | 990 mb | Unknown | -- |
| Sep 1 | 06:00 GMT | 26 | 146.9 | -- | 990 mb | Unknown | -- |
| Sep 1 | 03:00 GMT | 25.44 | 147.39 | -- | 990 mb | Unknown | -- |
| Sep 1 | 00:00 GMT | 24.8 | 147.8 | -- | 990 mb | Unknown | -- |
| Aug 31 | 21:00 GMT | 24 | 147.85 | -- | 992 mb | Tropical Depression | -- |
| Aug 31 | 18:00 GMT | 23.3 | 147.7 | -- | 995 mb | Tropical Depression | -- |
| Aug 31 | 15:00 GMT | 22.99 | 147.52 | -- | 996 mb | Tropical Depression | -- |
| Aug 31 | 12:00 GMT | 22.8 | 147.3 | -- | 998 mb | Tropical Depression | -- |
| Aug 31 | 09:00 GMT | 22.45 | 147.1 | -- | 999 mb | Tropical Depression | -- |
| Aug 31 | 06:00 GMT | 22.1 | 146.9 | -- | 1,000 mb | Tropical Depression | -- |
| Aug 31 | 03:00 GMT | 21.84 | 146.71 | -- | 1,000 mb | Tropical Depression | -- |
| Aug 31 | 00:00 GMT | 21.6 | 146.5 | -- | 1,000 mb | Tropical Depression | -- |
| Aug 30 | 21:00 GMT | 21.31 | 146.24 | -- | 1,001 mb | Tropical Depression | -- |
| Aug 30 | 18:00 GMT | 21 | 146 | -- | 1,002 mb | Tropical Depression | -- |
| Aug 30 | 15:00 GMT | 20.7 | 145.85 | -- | 1,003 mb | Tropical Depression | -- |
| Aug 30 | 12:00 GMT | 20.4 | 145.7 | -- | 1,004 mb | Tropical Depression | -- |
| Aug 30 | 09:00 GMT | 20.11 | 145.45 | -- | 1,004 mb | Tropical Depression | -- |
| Aug 30 | 06:00 GMT | 19.8 | 145.2 | -- | 1,004 mb | Tropical Depression | -- |
| Aug 30 | 03:00 GMT | 19.44 | 145.04 | -- | 1,005 mb | Tropical Depression | -- |
| Aug 30 | 00:00 GMT | 19.1 | 144.9 | -- | 1,006 mb | Tropical Depression | -- |
| Aug 29 | 21:00 GMT | 18.85 | 144.75 | -- | 1,006 mb | Tropical Depression | -- |
| Aug 29 | 18:00 GMT | 18.6 | 144.6 | -- | 1,006 mb | Tropical Depression | -- |
| Aug 29 | 15:00 GMT | 18.28 | 144.45 | -- | 1,006 mb | Tropical Depression | -- |
| Aug 29 | 12:00 GMT | 17.9 | 144.3 | -- | 1,006 mb | Tropical Depression | -- |
| Aug 29 | 09:00 GMT | 17.47 | 144.15 | -- | 1,006 mb | Tropical Depression | -- |
| Aug 29 | 06:00 GMT | 17 | 144 | -- | 1,006 mb | Tropical Depression | -- |
Learn more about Tropical Depression Joan and the 1955 Central Pacific hurricane season in our hurricane archive.
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