Storm Activity: Jul 29, 1999 - Aug 5, 1999
Aug 5 · 06:00 GMT -- 996 mb Extratropical
| Aug 5 | 06:00 GMT | 50.9 | 131.1 | -- | 996 mb | Extratropical | -- |
| Aug 5 | 03:00 GMT | 50.31 | 130.51 | -- | 998 mb | Extratropical | -- |
| Aug 5 | 00:00 GMT | 49.7 | 129.8 | -- | 1,000 mb | Extratropical | -- |
| Aug 4 | 21:00 GMT | 49.03 | 128.92 | -- | 1,000 mb | Extratropical | -- |
| Aug 4 | 18:00 GMT | 48.3 | 128.1 | -- | 1,000 mb | Extratropical | -- |
| Aug 4 | 15:00 GMT | 47.51 | 127.55 | -- | 1,000 mb | Extratropical | -- |
| Aug 4 | 12:00 GMT | 46.7 | 127.2 | -- | 1,000 mb | Extratropical | -- |
| Aug 4 | 09:00 GMT | 45.89 | 126.96 | -- | 999 mb | Extratropical | -- |
| Aug 4 | 06:00 GMT | 45.1 | 126.8 | -- | 998 mb | Extratropical | -- |
| Aug 4 | 03:00 GMT | 44.45 | 126.63 | -- | 997 mb | Extratropical | -- |
| Aug 4 | 00:00 GMT | 43.6 | 126.5 | -- | 996 mb | Extratropical | -- |
| Aug 3 | 21:00 GMT | 42.23 | 126.43 | -- | 993 mb | Extratropical | -- |
| Aug 3 | 18:00 GMT | 40.6 | 126.4 | -- | 990 mb | Extratropical | -- |
| Aug 3 | 15:00 GMT | 38.96 | 126.43 | -- | 987 mb | Severe Tropical Storm | -- |
| Aug 3 | 12:00 GMT | 37.4 | 126.4 | 60 mph | 985 mb | Severe Tropical Storm | -- |
| Aug 3 | 09:00 GMT | 36.02 | 126.15 | 60 mph | 980 mb | Severe Tropical Storm | -- |
| Aug 3 | 06:00 GMT | 34.9 | 125.9 | 65 mph | 975 mb | Severe Tropical Storm | -- |
| Aug 3 | 03:00 GMT | 34.16 | 125.86 | 65 mph | 975 mb | Severe Tropical Storm | -- |
| Aug 3 | 00:00 GMT | 33.5 | 125.9 | 70 mph | 975 mb | Severe Tropical Storm | -- |
| Aug 2 | 21:00 GMT | 32.5 | 125.89 | 70 mph | 975 mb | Severe Tropical Storm | -- |
| Aug 2 | 18:00 GMT | 31.5 | 125.9 | 70 mph | 975 mb | Severe Tropical Storm | -- |
| Aug 2 | 15:00 GMT | 30.76 | 125.99 | 70 mph | 975 mb | Severe Tropical Storm | -- |
| Aug 2 | 12:00 GMT | 30.1 | 126.1 | 70 mph | 975 mb | Severe Tropical Storm | -- |
| Aug 2 | 09:00 GMT | 29.34 | 126.2 | 70 mph | 975 mb | Severe Tropical Storm | -- |
| Aug 2 | 06:00 GMT | 28.7 | 126.3 | 70 mph | 975 mb | Severe Tropical Storm | -- |
| Aug 2 | 03:00 GMT | 28.3 | 126.4 | 70 mph | 970 mb | Severe Tropical Storm | -- |
| Aug 2 | 00:00 GMT | 27.7 | 126.6 | 70 mph | 975 mb | Severe Tropical Storm | -- |
| Aug 1 | 21:00 GMT | 27.4 | 126.8 | 70 mph | 975 mb | Severe Tropical Storm | -- |
| Aug 1 | 18:00 GMT | 27.2 | 127.1 | 70 mph | 975 mb | Severe Tropical Storm | -- |
| Aug 1 | 15:00 GMT | 26.8 | 127.5 | 75 mph | 970 mb | Typhoon | 1 |
| Aug 1 | 12:00 GMT | 26.3 | 128.1 | 75 mph | 970 mb | Typhoon | 1 |
| Aug 1 | 09:00 GMT | 25.8 | 128.7 | 70 mph | 975 mb | Severe Tropical Storm | -- |
| Aug 1 | 06:00 GMT | 25.5 | 129 | 70 mph | 975 mb | Severe Tropical Storm | -- |
| Aug 1 | 03:00 GMT | 25.3 | 129.1 | 65 mph | 980 mb | Severe Tropical Storm | -- |
| Aug 1 | 00:00 GMT | 24.9 | 129.4 | 65 mph | 980 mb | Severe Tropical Storm | -- |
| Jul 31 | 21:00 GMT | 24.4 | 129.7 | 65 mph | 980 mb | Severe Tropical Storm | -- |
| Jul 31 | 18:00 GMT | 23.8 | 130 | 65 mph | 980 mb | Severe Tropical Storm | -- |
| Jul 31 | 15:00 GMT | 23.4 | 130.2 | 60 mph | 985 mb | Severe Tropical Storm | -- |
| Jul 31 | 12:00 GMT | 23.2 | 130.5 | 60 mph | 985 mb | Severe Tropical Storm | -- |
| Jul 31 | 09:00 GMT | 22.99 | 130.62 | 60 mph | 985 mb | Severe Tropical Storm | -- |
| Jul 31 | 06:00 GMT | 22.7 | 130.7 | 60 mph | 985 mb | Severe Tropical Storm | -- |
| Jul 31 | 03:00 GMT | 22.22 | 130.92 | 60 mph | 985 mb | Severe Tropical Storm | -- |
| Jul 31 | 00:00 GMT | 21.7 | 131.2 | 60 mph | 985 mb | Severe Tropical Storm | -- |
| Jul 30 | 21:00 GMT | 21.28 | 131.48 | 60 mph | 985 mb | Severe Tropical Storm | -- |
| Jul 30 | 18:00 GMT | 20.9 | 131.8 | 60 mph | 985 mb | Severe Tropical Storm | -- |
| Jul 30 | 15:00 GMT | 20.6 | 132.17 | 50 mph | 987 mb | Tropical Storm | -- |
| Jul 30 | 12:00 GMT | 20.2 | 132.6 | 45 mph | 990 mb | Tropical Storm | -- |
| Jul 30 | 09:00 GMT | 19.55 | 133.16 | 45 mph | 992 mb | Tropical Storm | -- |
| Jul 30 | 06:00 GMT | 18.7 | 133.6 | 40 mph | 994 mb | Tropical Storm | -- |
| Jul 30 | 03:00 GMT | 17.68 | 133.69 | 40 mph | 995 mb | Tropical Storm | -- |
| Jul 30 | 00:00 GMT | 16.7 | 133.6 | 40 mph | 996 mb | Tropical Storm | -- |
| Jul 29 | 21:00 GMT | 15.96 | 133.49 | -- | 997 mb | Tropical Depression | -- |
| Jul 29 | 18:00 GMT | 15.4 | 133.4 | -- | 998 mb | Tropical Depression | -- |
| Jul 29 | 15:00 GMT | 14.96 | 133.46 | -- | 999 mb | Tropical Depression | -- |
| Jul 29 | 12:00 GMT | 14.6 | 133.6 | -- | 1,000 mb | Tropical Depression | -- |
| Jul 29 | 09:00 GMT | 14.25 | 133.78 | -- | 1,000 mb | Tropical Depression | -- |
| Jul 29 | 06:00 GMT | 13.8 | 134 | -- | 1,000 mb | Tropical Depression | -- |
| Jul 29 | 03:00 GMT | 13.12 | 134.25 | -- | 1,000 mb | Tropical Depression | -- |
| Jul 29 | 00:00 GMT | 12.3 | 134.5 | -- | 1,000 mb | Tropical Depression | -- |
Learn more about Typhoon Olga and the 1999 Western Pacific hurricane season in our hurricane archive.
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