Storm Activity: Dec 22, 1998 - Dec 28, 1998
Dec 28 · 04:00 GMT 25 mph 1,004 mb Tropical Depression
| Dec 28 | 04:00 GMT | -15.9 | 90.1 | 25 mph | 1,004 mb | Tropical Depression | -- |
| Dec 28 | 03:00 GMT | -15.9 | 90.26 | 25 mph | 1,004 mb | Tropical Depression | -- |
| Dec 28 | 01:00 GMT | -15.9 | 90.6 | 25 mph | 1,004 mb | Tropical Depression | -- |
| Dec 28 | 00:00 GMT | -15.89 | 90.8 | 25 mph | 1,003 mb | Tropical Depression | -- |
| Dec 27 | 22:00 GMT | -15.9 | 91.2 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 27 | 21:00 GMT | -15.93 | 91.37 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 27 | 19:00 GMT | -16 | 91.7 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 27 | 18:00 GMT | -16 | 91.9 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 27 | 16:00 GMT | -16 | 92.3 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 27 | 15:00 GMT | -16.03 | 92.45 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 27 | 13:00 GMT | -16.1 | 92.7 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 27 | 12:00 GMT | -16.1 | 92.81 | 30 mph | 1,001 mb | Tropical Depression | -- |
| Dec 27 | 10:00 GMT | -16.1 | 93 | 35 mph | 1,000 mb | Tropical Depression | -- |
| Dec 27 | 09:00 GMT | -16.13 | 93.1 | 35 mph | 1,000 mb | Tropical Depression | -- |
| Dec 27 | 07:00 GMT | -16.2 | 93.3 | 35 mph | 1,000 mb | Tropical Depression | -- |
| Dec 27 | 06:00 GMT | -16.2 | 93.4 | 35 mph | 999 mb | Tropical Cyclone | -- |
| Dec 27 | 04:00 GMT | -16.2 | 93.6 | 40 mph | 998 mb | Tropical Cyclone | -- |
| Dec 27 | 03:00 GMT | -16.23 | 93.7 | 40 mph | 998 mb | Tropical Cyclone | -- |
| Dec 27 | 01:00 GMT | -16.3 | 93.9 | 40 mph | 998 mb | Tropical Cyclone | -- |
| Dec 27 | 00:00 GMT | -16.3 | 94 | 40 mph | 998 mb | Tropical Cyclone | -- |
| Dec 26 | 22:00 GMT | -16.3 | 94.2 | 40 mph | 998 mb | Tropical Cyclone | -- |
| Dec 26 | 21:00 GMT | -16.33 | 94.31 | 40 mph | 997 mb | Tropical Cyclone | -- |
| Dec 26 | 19:00 GMT | -16.4 | 94.5 | 45 mph | 996 mb | Tropical Cyclone | -- |
| Dec 26 | 18:00 GMT | -16.43 | 94.57 | 45 mph | 996 mb | Tropical Cyclone | -- |
| Dec 26 | 16:00 GMT | -16.5 | 94.7 | 45 mph | 996 mb | Tropical Cyclone | -- |
| Dec 26 | 15:00 GMT | -16.54 | 94.76 | 45 mph | 995 mb | Tropical Cyclone | -- |
| Dec 26 | 13:00 GMT | -16.6 | 94.9 | 50 mph | 994 mb | Tropical Cyclone | -- |
| Dec 26 | 12:00 GMT | -16.6 | 94.99 | 50 mph | 994 mb | Tropical Cyclone | -- |
| Dec 26 | 10:00 GMT | -16.6 | 95.2 | 50 mph | 994 mb | Tropical Cyclone | -- |
| Dec 26 | 09:00 GMT | -16.63 | 95.3 | 55 mph | 992 mb | Tropical Cyclone | -- |
| Dec 26 | 07:00 GMT | -16.7 | 95.5 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 26 | 06:00 GMT | -16.71 | 95.59 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 26 | 04:00 GMT | -16.7 | 95.8 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 26 | 03:00 GMT | -16.69 | 95.93 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 26 | 01:00 GMT | -16.7 | 96.2 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 26 | 00:00 GMT | -16.73 | 96.33 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 25 | 22:00 GMT | -16.8 | 96.6 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 25 | 21:00 GMT | -16.81 | 96.73 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 25 | 19:00 GMT | -16.8 | 97 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 25 | 18:00 GMT | -16.81 | 97.13 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 25 | 16:00 GMT | -16.8 | 97.4 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 25 | 15:00 GMT | -16.78 | 97.54 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 25 | 13:00 GMT | -16.7 | 97.8 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 25 | 12:00 GMT | -16.64 | 97.91 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 25 | 10:00 GMT | -16.5 | 98.1 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 25 | 09:00 GMT | -16.43 | 98.17 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 25 | 07:00 GMT | -16.3 | 98.3 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 25 | 06:00 GMT | -16.23 | 98.36 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 25 | 04:00 GMT | -16.1 | 98.5 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 25 | 03:00 GMT | -16.02 | 98.62 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 25 | 01:00 GMT | -15.9 | 98.9 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 25 | 00:00 GMT | -15.88 | 99.01 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 24 | 22:00 GMT | -15.9 | 99.2 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 24 | 21:00 GMT | -15.9 | 99.3 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 24 | 19:00 GMT | -15.9 | 99.5 | 60 mph | 991 mb | Tropical Cyclone | -- |
| Dec 24 | 18:00 GMT | -15.91 | 99.61 | 55 mph | 992 mb | Tropical Cyclone | -- |
| Dec 24 | 16:00 GMT | -15.9 | 99.8 | 50 mph | 994 mb | Tropical Cyclone | -- |
| Dec 24 | 15:00 GMT | -15.87 | 99.87 | 50 mph | 994 mb | Tropical Cyclone | -- |
| Dec 24 | 13:00 GMT | -15.8 | 100 | 45 mph | 996 mb | Tropical Cyclone | -- |
| Dec 24 | 12:00 GMT | -15.77 | 100.07 | 45 mph | 996 mb | Tropical Cyclone | -- |
| Dec 24 | 10:00 GMT | -15.7 | 100.2 | 45 mph | 996 mb | Tropical Cyclone | -- |
| Dec 24 | 09:00 GMT | -15.68 | 100.26 | 45 mph | 996 mb | Tropical Cyclone | -- |
| Dec 24 | 07:00 GMT | -15.6 | 100.4 | 40 mph | 996 mb | Tropical Cyclone | -- |
| Dec 24 | 06:00 GMT | -15.53 | 100.5 | 40 mph | 996 mb | Tropical Cyclone | -- |
| Dec 24 | 04:00 GMT | -15.3 | 100.7 | 40 mph | 996 mb | Tropical Cyclone | -- |
| Dec 24 | 03:00 GMT | -15.15 | 100.78 | 40 mph | 996 mb | Tropical Depression | -- |
| Dec 24 | 01:00 GMT | -14.8 | 100.9 | 35 mph | 998 mb | Tropical Depression | -- |
| Dec 24 | 00:00 GMT | -14.6 | 100.98 | 30 mph | 998 mb | Tropical Depression | -- |
| Dec 23 | 22:00 GMT | -14.2 | 101.1 | 30 mph | 1,000 mb | Tropical Depression | -- |
| Dec 23 | 21:00 GMT | -14.02 | 101.12 | 30 mph | 1,000 mb | Tropical Depression | -- |
| Dec 23 | 19:00 GMT | -13.7 | 101.1 | 30 mph | 1,000 mb | Tropical Depression | -- |
| Dec 23 | 18:00 GMT | -13.55 | 101.08 | 30 mph | 1,000 mb | Tropical Depression | -- |
| Dec 23 | 16:00 GMT | -13.3 | 101 | 30 mph | 1,000 mb | Tropical Depression | -- |
| Dec 23 | 15:00 GMT | -13.2 | 100.97 | 30 mph | 1,000 mb | Tropical Depression | -- |
| Dec 23 | 13:00 GMT | -13 | 100.9 | 30 mph | 1,000 mb | Tropical Depression | -- |
| Dec 23 | 12:00 GMT | -12.87 | 100.86 | 30 mph | 1,000 mb | Tropical Depression | -- |
| Dec 23 | 10:00 GMT | -12.6 | 100.8 | 30 mph | 1,000 mb | Tropical Depression | -- |
| Dec 23 | 09:00 GMT | -12.47 | 100.8 | 30 mph | 1,000 mb | Tropical Depression | -- |
| Dec 23 | 07:00 GMT | -12.2 | 100.8 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 23 | 06:00 GMT | -12.06 | 100.77 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 23 | 04:00 GMT | -11.8 | 100.7 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 23 | 03:00 GMT | -11.69 | 100.7 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 23 | 01:00 GMT | -11.5 | 100.7 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 23 | 00:00 GMT | -11.43 | 100.67 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 22 | 22:00 GMT | -11.3 | 100.6 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 22 | 21:00 GMT | -11.24 | 100.59 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 22 | 19:00 GMT | -11.1 | 100.6 | 30 mph | 1,002 mb | Tropical Depression | -- |
Learn more about Tropical Cyclone Cathy and the 1999 Southern Hemisphere hurricane season in our hurricane archive.
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