Storm Activity: Sep 11, 1988 - Sep 17, 1988
Sep 17 · 00:00 GMT -- 1,012 mb Tropical Depression
| Sep 17 | 00:00 GMT | 34 | 159 | -- | 1,012 mb | Tropical Depression | -- |
| Sep 16 | 21:00 GMT | 33.51 | 158.5 | -- | 1,010 mb | Tropical Depression | -- |
| Sep 16 | 18:00 GMT | 33 | 158 | -- | 1,008 mb | Tropical Depression | -- |
| Sep 16 | 15:00 GMT | 32.49 | 157.49 | -- | 1,006 mb | Tropical Depression | -- |
| Sep 16 | 12:00 GMT | 32 | 157 | -- | 1,004 mb | Tropical Depression | -- |
| Sep 16 | 09:00 GMT | 31.58 | 156.58 | -- | 1,002 mb | Tropical Storm | -- |
| Sep 16 | 06:00 GMT | 31.2 | 156.2 | 40 mph | 1,000 mb | Tropical Storm | -- |
| Sep 16 | 03:00 GMT | 30.79 | 155.8 | 40 mph | 999 mb | Tropical Storm | -- |
| Sep 16 | 00:00 GMT | 30.4 | 155.5 | 40 mph | 998 mb | Tropical Storm | -- |
| Sep 15 | 21:00 GMT | 30.09 | 155.4 | 45 mph | 997 mb | Tropical Storm | -- |
| Sep 15 | 18:00 GMT | 29.8 | 155.4 | 45 mph | 996 mb | Tropical Storm | -- |
| Sep 15 | 15:00 GMT | 29.46 | 155.36 | 50 mph | 995 mb | Tropical Storm | -- |
| Sep 15 | 12:00 GMT | 29.1 | 155.4 | 50 mph | 994 mb | Tropical Storm | -- |
| Sep 15 | 09:00 GMT | 28.71 | 155.59 | 50 mph | 993 mb | Tropical Storm | -- |
| Sep 15 | 06:00 GMT | 28.3 | 155.9 | 50 mph | 992 mb | Tropical Storm | -- |
| Sep 15 | 03:00 GMT | 27.87 | 156.34 | 55 mph | 991 mb | Severe Tropical Storm | -- |
| Sep 15 | 00:00 GMT | 27.5 | 156.7 | 60 mph | 990 mb | Severe Tropical Storm | -- |
| Sep 14 | 21:00 GMT | 27.22 | 156.71 | 60 mph | 990 mb | Severe Tropical Storm | -- |
| Sep 14 | 18:00 GMT | 27.1 | 156.7 | 65 mph | 990 mb | Severe Tropical Storm | -- |
| Sep 14 | 15:00 GMT | 27.2 | 157.02 | 60 mph | 990 mb | Tropical Storm | -- |
| Sep 14 | 12:00 GMT | 27.3 | 157.4 | 50 mph | 990 mb | Tropical Storm | -- |
| Sep 14 | 09:00 GMT | 27.14 | 157.65 | 50 mph | 990 mb | Tropical Storm | -- |
| Sep 14 | 06:00 GMT | 26.9 | 157.8 | 50 mph | 990 mb | Tropical Storm | -- |
| Sep 14 | 03:00 GMT | 26.7 | 157.81 | 50 mph | 990 mb | Tropical Storm | -- |
| Sep 14 | 00:00 GMT | 26.5 | 157.8 | 50 mph | 990 mb | Tropical Storm | -- |
| Sep 13 | 21:00 GMT | 26.3 | 157.94 | 50 mph | 990 mb | Tropical Storm | -- |
| Sep 13 | 18:00 GMT | 26.1 | 158.1 | 50 mph | 990 mb | Tropical Storm | -- |
| Sep 13 | 15:00 GMT | 25.91 | 158.19 | 50 mph | 991 mb | Tropical Storm | -- |
| Sep 13 | 12:00 GMT | 25.7 | 158.2 | 50 mph | 992 mb | Tropical Storm | -- |
| Sep 13 | 09:00 GMT | 25.45 | 158.09 | 50 mph | 992 mb | Tropical Storm | -- |
| Sep 13 | 06:00 GMT | 25.2 | 158 | 45 mph | 992 mb | Tropical Storm | -- |
| Sep 13 | 03:00 GMT | 24.99 | 158.03 | 45 mph | 992 mb | Tropical Storm | -- |
| Sep 13 | 00:00 GMT | 24.8 | 158.2 | 45 mph | 992 mb | Tropical Storm | -- |
| Sep 12 | 21:00 GMT | 24.6 | 158.52 | 45 mph | 992 mb | Tropical Storm | -- |
| Sep 12 | 18:00 GMT | 24.4 | 158.9 | 45 mph | 992 mb | Tropical Storm | -- |
| Sep 12 | 15:00 GMT | 24.21 | 159.22 | 45 mph | 994 mb | Tropical Storm | -- |
| Sep 12 | 12:00 GMT | 24 | 159.5 | 40 mph | 996 mb | Tropical Storm | -- |
| Sep 12 | 09:00 GMT | 23.79 | 159.78 | 40 mph | 996 mb | Tropical Storm | -- |
| Sep 12 | 06:00 GMT | 23.5 | 160 | 40 mph | 996 mb | Tropical Storm | -- |
| Sep 12 | 03:00 GMT | 23.06 | 160.15 | 40 mph | 997 mb | Tropical Storm | -- |
| Sep 12 | 00:00 GMT | 22.6 | 160.2 | 40 mph | 998 mb | Tropical Storm | -- |
| Sep 11 | 21:00 GMT | 22.27 | 160.15 | -- | 999 mb | Tropical Depression | -- |
| Sep 11 | 18:00 GMT | 22 | 160 | -- | 1,000 mb | Tropical Depression | -- |
| Sep 11 | 15:00 GMT | 21.74 | 159.77 | -- | 1,002 mb | Tropical Depression | -- |
| Sep 11 | 12:00 GMT | 21.5 | 159.5 | -- | 1,004 mb | Tropical Depression | -- |
| Sep 11 | 09:00 GMT | 21.21 | 159.21 | -- | 1,005 mb | Tropical Depression | -- |
| Sep 11 | 06:00 GMT | 21 | 159 | -- | 1,006 mb | Tropical Depression | -- |
| Sep 11 | 03:00 GMT | 20.95 | 158.95 | -- | 1,007 mb | Tropical Depression | -- |
| Sep 11 | 00:00 GMT | 21 | 159 | -- | 1,008 mb | Tropical Depression | -- |
Learn more about Tropical Storm Irma and the 1988 Western Pacific hurricane season in our hurricane archive.
View All Hurricanes and Tropical Cyclones