Storm Activity: Dec 6, 2003 - Dec 12, 2003
Dec 12 · 06:00 GMT 30 mph 1,002 mb Tropical Depression
| Dec 12 | 06:00 GMT | -14.7 | 93 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 12 | 03:00 GMT | -14.75 | 93.41 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 12 | 00:00 GMT | -14.8 | 93.8 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 11 | 21:00 GMT | -14.86 | 94.19 | 30 mph | 1,001 mb | Tropical Depression | -- |
| Dec 11 | 18:00 GMT | -14.9 | 94.6 | 30 mph | 1,000 mb | Tropical Depression | -- |
| Dec 11 | 15:00 GMT | -14.92 | 95.09 | 30 mph | 997 mb | Tropical Depression | -- |
| Dec 11 | 12:00 GMT | -14.9 | 95.6 | 35 mph | 995 mb | Tropical Depression | -- |
| Dec 11 | 09:00 GMT | -14.86 | 96.12 | 35 mph | 992 mb | Tropical Cyclone | -- |
| Dec 11 | 06:00 GMT | -14.8 | 96.6 | 40 mph | 990 mb | Tropical Cyclone | -- |
| Dec 11 | 03:00 GMT | -14.75 | 97.02 | 50 mph | 987 mb | Tropical Cyclone | -- |
| Dec 11 | 00:00 GMT | -14.7 | 97.4 | 60 mph | 985 mb | Tropical Cyclone | -- |
| Dec 10 | 21:00 GMT | -14.66 | 97.77 | 65 mph | 980 mb | Tropical Cyclone | -- |
| Dec 10 | 18:00 GMT | -14.6 | 98.1 | 70 mph | 975 mb | Tropical Cyclone | -- |
| Dec 10 | 15:00 GMT | -14.52 | 98.38 | 75 mph | 970 mb | Tropical Cyclone | 1 |
| Dec 10 | 12:00 GMT | -14.4 | 98.6 | 80 mph | 965 mb | Tropical Cyclone | 1 |
| Dec 10 | 09:00 GMT | -14.27 | 98.77 | 85 mph | 962 mb | Tropical Cyclone | 1 |
| Dec 10 | 06:00 GMT | -14.1 | 98.9 | 85 mph | 960 mb | Tropical Cyclone | 1 |
| Dec 10 | 03:00 GMT | -13.89 | 99.07 | 90 mph | 957 mb | Tropical Cyclone | 1 |
| Dec 10 | 00:00 GMT | -13.6 | 99.2 | 90 mph | 955 mb | Tropical Cyclone | 1 |
| Dec 9 | 21:00 GMT | -13.22 | 99.26 | 90 mph | 952 mb | Tropical Cyclone | 1 |
| Dec 9 | 18:00 GMT | -12.8 | 99.3 | 90 mph | 950 mb | Tropical Cyclone | 1 |
| Dec 9 | 15:00 GMT | -12.41 | 99.36 | 95 mph | 950 mb | Tropical Cyclone | 1 |
| Dec 9 | 12:00 GMT | -12 | 99.4 | 100 mph | 950 mb | Tropical Cyclone | 2 |
| Dec 9 | 09:00 GMT | -11.57 | 99.42 | 95 mph | 952 mb | Tropical Cyclone | 1 |
| Dec 9 | 06:00 GMT | -11.1 | 99.4 | 90 mph | 955 mb | Tropical Cyclone | 1 |
| Dec 9 | 03:00 GMT | -10.61 | 99.36 | 90 mph | 957 mb | Tropical Cyclone | 1 |
| Dec 9 | 00:00 GMT | -10.1 | 99.3 | 85 mph | 960 mb | Tropical Cyclone | 1 |
| Dec 8 | 21:00 GMT | -9.57 | 99.28 | 85 mph | 962 mb | Tropical Cyclone | 1 |
| Dec 8 | 18:00 GMT | -9.1 | 99.2 | 85 mph | 965 mb | Tropical Cyclone | 1 |
| Dec 8 | 15:00 GMT | -8.75 | 99 | 85 mph | 965 mb | Tropical Cyclone | 1 |
| Dec 8 | 12:00 GMT | -8.5 | 98.7 | 80 mph | 965 mb | Tropical Cyclone | 1 |
| Dec 8 | 09:00 GMT | -8.33 | 98.34 | 75 mph | 967 mb | Tropical Cyclone | 1 |
| Dec 8 | 06:00 GMT | -8.2 | 98 | 75 mph | 970 mb | Tropical Cyclone | 1 |
| Dec 8 | 03:00 GMT | -8.03 | 97.79 | 70 mph | 975 mb | Tropical Cyclone | -- |
| Dec 8 | 00:00 GMT | -7.9 | 97.6 | 65 mph | 980 mb | Tropical Cyclone | -- |
| Dec 7 | 21:00 GMT | -7.83 | 97.36 | 60 mph | 982 mb | Tropical Cyclone | -- |
| Dec 7 | 18:00 GMT | -7.8 | 97.1 | 60 mph | 985 mb | Tropical Cyclone | -- |
| Dec 7 | 15:00 GMT | -7.79 | 96.84 | 55 mph | 987 mb | Tropical Cyclone | -- |
| Dec 7 | 12:00 GMT | -7.8 | 96.6 | 50 mph | 990 mb | Tropical Cyclone | -- |
| Dec 7 | 09:00 GMT | -7.81 | 96.39 | 50 mph | 991 mb | Tropical Cyclone | -- |
| Dec 7 | 06:00 GMT | -7.8 | 96.2 | 45 mph | 992 mb | Tropical Cyclone | -- |
| Dec 7 | 03:00 GMT | -7.71 | 96.07 | 45 mph | 993 mb | Tropical Cyclone | -- |
| Dec 7 | 00:00 GMT | -7.6 | 95.9 | 40 mph | 995 mb | Tropical Cyclone | -- |
| Dec 6 | 21:00 GMT | -7.54 | 95.59 | 35 mph | 997 mb | Tropical Depression | -- |
| Dec 6 | 18:00 GMT | -7.5 | 95.2 | 35 mph | 1,000 mb | Tropical Depression | -- |
| Dec 6 | 15:00 GMT | -7.46 | 94.79 | 30 mph | 1,001 mb | Tropical Depression | -- |
| Dec 6 | 12:00 GMT | -7.4 | 94.4 | 30 mph | 1,002 mb | Tropical Depression | -- |
| Dec 6 | 09:00 GMT | -7.31 | 94.09 | 25 mph | 1,003 mb | Tropical Depression | -- |
| Dec 6 | 06:00 GMT | -7.2 | 93.8 | 25 mph | 1,004 mb | Tropical Depression | -- |
| Dec 6 | 03:00 GMT | -7.1 | 93.51 | 25 mph | 1,004 mb | Tropical Depression | -- |
| Dec 6 | 00:00 GMT | -7 | 93.2 | 25 mph | 1,005 mb | Tropical Depression | -- |
Learn more about Tropical Cyclone Jana and the 2004 Southern Hemisphere hurricane season in our hurricane archive.
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