Storm Activity: Jul 27, 1939 - Jul 31, 1939
Jul 31 · 22:00 GMT -- -- Unknown
| Jul 31 | 22:00 GMT | 23.8 | 120.5 | -- | -- | Unknown | -- |
| Jul 31 | 21:00 GMT | 23.77 | 120.58 | -- | -- | Tropical Storm | -- |
| Jul 31 | 18:00 GMT | 23.69 | 120.8 | -- | -- | Tropical Storm | -- |
| Jul 31 | 15:00 GMT | 23.62 | 121.03 | -- | -- | Tropical Storm | -- |
| Jul 31 | 12:00 GMT | 23.54 | 121.25 | -- | -- | Tropical Storm | -- |
| Jul 31 | 10:00 GMT | 23.5 | 121.4 | -- | -- | Tropical Storm | -- |
| Jul 31 | 09:00 GMT | 23.48 | 121.47 | -- | -- | Tropical Storm | -- |
| Jul 31 | 06:00 GMT | 23.42 | 121.69 | -- | -- | Tropical Storm | -- |
| Jul 31 | 03:00 GMT | 23.36 | 121.89 | -- | -- | Tropical Storm | -- |
| Jul 31 | 00:00 GMT | 23.27 | 122.08 | -- | -- | Tropical Storm | -- |
| Jul 30 | 22:00 GMT | 23.2 | 122.2 | -- | -- | Tropical Storm | -- |
| Jul 30 | 21:00 GMT | 23.15 | 122.25 | -- | -- | Tropical Storm | -- |
| Jul 30 | 18:00 GMT | 22.99 | 122.41 | -- | -- | Tropical Storm | -- |
| Jul 30 | 15:00 GMT | 22.81 | 122.55 | -- | -- | Tropical Storm | -- |
| Jul 30 | 12:00 GMT | 22.62 | 122.69 | -- | -- | Tropical Storm | -- |
| Jul 30 | 10:00 GMT | 22.5 | 122.8 | -- | -- | Tropical Storm | -- |
| Jul 30 | 09:00 GMT | 22.45 | 122.85 | -- | -- | Tropical Storm | -- |
| Jul 30 | 06:00 GMT | 22.32 | 123.02 | -- | -- | Tropical Storm | -- |
| Jul 30 | 03:00 GMT | 22.19 | 123.21 | -- | -- | Tropical Storm | -- |
| Jul 30 | 00:00 GMT | 22.03 | 123.43 | -- | -- | Tropical Storm | -- |
| Jul 29 | 22:00 GMT | 21.9 | 123.6 | -- | -- | Tropical Storm | -- |
| Jul 29 | 21:00 GMT | 21.81 | 123.69 | -- | -- | Tropical Storm | -- |
| Jul 29 | 18:00 GMT | 21.52 | 124 | -- | -- | Tropical Storm | -- |
| Jul 29 | 15:00 GMT | 21.2 | 124.35 | -- | -- | Tropical Storm | -- |
| Jul 29 | 12:00 GMT | 20.89 | 124.73 | -- | -- | Tropical Storm | -- |
| Jul 29 | 10:00 GMT | 20.7 | 125 | -- | -- | Tropical Storm | -- |
| Jul 29 | 09:00 GMT | 20.62 | 125.15 | -- | -- | Tropical Storm | -- |
| Jul 29 | 06:00 GMT | 20.4 | 125.63 | -- | -- | Tropical Storm | -- |
| Jul 29 | 03:00 GMT | 20.21 | 126.11 | -- | -- | Tropical Storm | -- |
| Jul 29 | 00:00 GMT | 20.07 | 126.55 | -- | -- | Tropical Storm | -- |
| Jul 28 | 22:00 GMT | 20 | 126.8 | -- | -- | Tropical Storm | -- |
| Jul 28 | 21:00 GMT | 19.97 | 126.89 | -- | -- | Tropical Storm | -- |
| Jul 28 | 18:00 GMT | 19.91 | 127.1 | -- | -- | Tropical Storm | -- |
| Jul 28 | 15:00 GMT | 19.89 | 127.26 | -- | -- | Tropical Storm | -- |
| Jul 28 | 12:00 GMT | 19.89 | 127.4 | -- | -- | Tropical Storm | -- |
| Jul 28 | 10:00 GMT | 19.9 | 127.5 | -- | -- | Tropical Storm | -- |
| Jul 28 | 09:00 GMT | 19.9 | 127.57 | -- | -- | Tropical Storm | -- |
| Jul 28 | 06:00 GMT | 19.91 | 127.77 | -- | -- | Tropical Storm | -- |
| Jul 28 | 03:00 GMT | 19.92 | 128.01 | -- | -- | Tropical Storm | -- |
| Jul 28 | 00:00 GMT | 19.92 | 128.29 | -- | -- | Tropical Storm | -- |
| Jul 27 | 22:00 GMT | 19.9 | 128.5 | -- | -- | Tropical Storm | -- |
| Jul 27 | 21:00 GMT | 19.88 | 128.62 | -- | -- | Tropical Storm | -- |
| Jul 27 | 18:00 GMT | 19.81 | 129.01 | -- | -- | Tropical Storm | -- |
| Jul 27 | 15:00 GMT | 19.71 | 129.44 | -- | -- | Tropical Storm | -- |
| Jul 27 | 12:00 GMT | 19.59 | 129.89 | -- | -- | Tropical Storm | -- |
| Jul 27 | 10:00 GMT | 19.5 | 130.2 | -- | -- | Tropical Storm | -- |
Learn more about Unnamed Tropical Storm and the 1939 Western Pacific hurricane season in our hurricane archive.
View All Hurricanes and Tropical Cyclones