Storm Activity: Aug 19, 1959 - Aug 23, 1959
Aug 23 · 18:00 GMT -- 998 mb Tropical Depression
| Aug 23 | 18:00 GMT | 30 | 111 | -- | 998 mb | Tropical Depression | -- |
| Aug 23 | 15:00 GMT | 29.83 | 111.01 | -- | 996 mb | Tropical Depression | -- |
| Aug 23 | 12:00 GMT | 29.2 | 111.4 | -- | 995 mb | Tropical Depression | -- |
| Aug 23 | 09:00 GMT | 27.84 | 112.45 | -- | 992 mb | Unknown | -- |
| Aug 23 | 06:00 GMT | 26.4 | 114 | -- | 990 mb | Unknown | -- |
| Aug 23 | 03:00 GMT | 25.58 | 116.07 | -- | 985 mb | Unknown | -- |
| Aug 23 | 00:00 GMT | 25 | 117.8 | -- | 980 mb | Unknown | -- |
| Aug 22 | 21:00 GMT | 24.44 | 118.13 | -- | 972 mb | Unknown | -- |
| Aug 22 | 18:00 GMT | 23.9 | 118.1 | -- | 965 mb | Unknown | -- |
| Aug 22 | 15:00 GMT | 23.27 | 118.72 | -- | 965 mb | Unknown | -- |
| Aug 22 | 12:00 GMT | 22.6 | 119.4 | -- | 965 mb | Unknown | -- |
| Aug 22 | 09:00 GMT | 21.92 | 119.78 | -- | 967 mb | Unknown | -- |
| Aug 22 | 06:00 GMT | 21.3 | 120.1 | -- | 970 mb | Unknown | -- |
| Aug 22 | 03:00 GMT | 20.79 | 120.56 | -- | 974 mb | Unknown | -- |
| Aug 22 | 00:00 GMT | 20.4 | 121 | -- | 978 mb | Unknown | -- |
| Aug 21 | 21:00 GMT | 20.16 | 121.3 | -- | 979 mb | Unknown | -- |
| Aug 21 | 18:00 GMT | 19.9 | 121.6 | -- | 980 mb | Unknown | -- |
| Aug 21 | 15:00 GMT | 19.38 | 122.05 | -- | 980 mb | Unknown | -- |
| Aug 21 | 12:00 GMT | 18.8 | 122.5 | -- | 980 mb | Unknown | -- |
| Aug 21 | 09:00 GMT | 18.32 | 122.83 | -- | 982 mb | Unknown | -- |
| Aug 21 | 06:00 GMT | 17.9 | 123.1 | -- | 985 mb | Unknown | -- |
| Aug 21 | 03:00 GMT | 17.5 | 123.36 | -- | 985 mb | Unknown | -- |
| Aug 21 | 00:00 GMT | 17.2 | 123.6 | -- | 985 mb | Unknown | -- |
| Aug 20 | 21:00 GMT | 17.05 | 123.84 | -- | 985 mb | Unknown | -- |
| Aug 20 | 18:00 GMT | 17 | 124.1 | -- | 985 mb | Unknown | -- |
| Aug 20 | 15:00 GMT | 16.94 | 124.45 | -- | 987 mb | Unknown | -- |
| Aug 20 | 12:00 GMT | 16.9 | 124.8 | -- | 990 mb | Unknown | -- |
| Aug 20 | 09:00 GMT | 16.87 | 125.04 | -- | 992 mb | Unknown | -- |
| Aug 20 | 06:00 GMT | 16.8 | 125.3 | -- | 995 mb | Unknown | -- |
| Aug 20 | 03:00 GMT | 16.59 | 125.67 | -- | 995 mb | Unknown | -- |
| Aug 20 | 00:00 GMT | 16.4 | 126.1 | -- | 996 mb | Unknown | -- |
| Aug 19 | 21:00 GMT | 16.38 | 126.54 | -- | 998 mb | Tropical Depression | -- |
| Aug 19 | 18:00 GMT | 16.4 | 127 | -- | 1,000 mb | Tropical Depression | -- |
| Aug 19 | 15:00 GMT | 16.32 | 127.5 | -- | 1,003 mb | Tropical Depression | -- |
| Aug 19 | 12:00 GMT | 16.2 | 127.9 | -- | 1,006 mb | Tropical Depression | -- |
| Aug 19 | 09:00 GMT | 16.06 | 128.07 | -- | 1,006 mb | Tropical Depression | -- |
| Aug 19 | 06:00 GMT | 15.9 | 128.1 | -- | 1,006 mb | Tropical Depression | -- |
| Aug 19 | 03:00 GMT | 15.75 | 128.1 | -- | 1,006 mb | Tropical Depression | -- |
| Aug 19 | 00:00 GMT | 15.6 | 128.1 | -- | 1,006 mb | Tropical Depression | -- |
Learn more about Tropical Depression Iris and the 1959 Western Pacific hurricane season in our hurricane archive.
View All Hurricanes and Tropical Cyclones