Storm Activity: Apr 14, 1970 - Apr 18, 1970
Apr 18 · 23:00 GMT -- 1,003 mb Unknown
| Apr 18 | 23:00 GMT | -9.5 | 154.5 | -- | 1,003 mb | Unknown | -- |
| Apr 18 | 21:00 GMT | -9.4 | 154.39 | -- | 1,003 mb | Unknown | -- |
| Apr 18 | 18:00 GMT | -9.26 | 154.24 | -- | 1,003 mb | Unknown | -- |
| Apr 18 | 15:00 GMT | -9.13 | 154.12 | -- | 1,003 mb | Unknown | -- |
| Apr 18 | 12:00 GMT | -9.03 | 154.02 | -- | 1,003 mb | Unknown | -- |
| Apr 18 | 11:00 GMT | -9 | 154 | -- | 1,003 mb | Unknown | -- |
| Apr 18 | 09:00 GMT | -8.96 | 153.98 | -- | 1,003 mb | Unknown | -- |
| Apr 18 | 06:00 GMT | -8.92 | 153.99 | -- | 1,003 mb | Unknown | -- |
| Apr 18 | 03:00 GMT | -8.88 | 154.07 | -- | 1,003 mb | Unknown | -- |
| Apr 18 | 00:00 GMT | -8.83 | 154.23 | -- | 1,003 mb | Unknown | -- |
| Apr 17 | 23:00 GMT | -8.8 | 154.3 | -- | 1,003 mb | Unknown | -- |
| Apr 17 | 21:00 GMT | -8.71 | 154.46 | -- | 1,002 mb | Unknown | -- |
| Apr 17 | 18:00 GMT | -8.56 | 154.77 | -- | 1,002 mb | Unknown | -- |
| Apr 17 | 15:00 GMT | -8.4 | 155.14 | -- | 1,001 mb | Unknown | -- |
| Apr 17 | 12:00 GMT | -8.24 | 155.56 | -- | 1,001 mb | Unknown | -- |
| Apr 17 | 11:00 GMT | -8.2 | 155.7 | -- | 1,001 mb | Unknown | -- |
| Apr 17 | 09:00 GMT | -8.13 | 155.99 | -- | 999 mb | Unknown | -- |
| Apr 17 | 06:00 GMT | -8.03 | 156.45 | -- | 998 mb | Unknown | -- |
| Apr 17 | 05:00 GMT | -8 | 156.6 | -- | 998 mb | Unknown | -- |
| Apr 17 | 03:00 GMT | -7.92 | 156.91 | -- | 998 mb | Unknown | -- |
| Apr 17 | 00:00 GMT | -7.82 | 157.36 | -- | 999 mb | Unknown | -- |
| Apr 16 | 23:00 GMT | -7.8 | 157.5 | -- | 1,000 mb | Unknown | -- |
| Apr 16 | 21:00 GMT | -7.77 | 157.76 | -- | 1,000 mb | Unknown | -- |
| Apr 16 | 18:00 GMT | -7.78 | 158.1 | -- | 1,000 mb | Unknown | -- |
| Apr 16 | 15:00 GMT | -7.81 | 158.4 | -- | 1,000 mb | Unknown | -- |
| Apr 16 | 12:00 GMT | -7.88 | 158.7 | -- | 1,000 mb | Unknown | -- |
| Apr 16 | 11:00 GMT | -7.9 | 158.8 | -- | 1,000 mb | Unknown | -- |
| Apr 16 | 09:00 GMT | -8.26 | 158.54 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 16 | 06:00 GMT | -8.33 | 158.89 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 16 | 03:00 GMT | -8.41 | 159.21 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 16 | 00:00 GMT | -8.5 | 159.5 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 15 | 23:00 GMT | -8.53 | 159.58 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 15 | 21:00 GMT | -8.6 | 159.71 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 15 | 18:00 GMT | -8.7 | 159.89 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 15 | 15:00 GMT | -8.8 | 160.04 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 15 | 12:00 GMT | -8.9 | 160.2 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 15 | 11:00 GMT | -8.93 | 160.26 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 15 | 09:00 GMT | -8.98 | 160.39 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 15 | 06:00 GMT | -9.06 | 160.58 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 15 | 03:00 GMT | -9.13 | 160.78 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 15 | 00:00 GMT | -9.2 | 161 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 14 | 23:00 GMT | -9.22 | 161.07 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 14 | 21:00 GMT | -9.27 | 161.22 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 14 | 18:00 GMT | -9.33 | 161.46 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 14 | 15:00 GMT | -9.41 | 161.72 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 14 | 12:00 GMT | -9.5 | 162 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 14 | 11:00 GMT | -9.53 | 162.1 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 14 | 09:00 GMT | -9.61 | 162.3 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 14 | 06:00 GMT | -9.73 | 162.63 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 14 | 03:00 GMT | -9.86 | 162.96 | 45 mph | 990 mb | Tropical Cyclone | -- |
| Apr 14 | 00:00 GMT | -10 | 163.3 | 45 mph | 990 mb | Tropical Cyclone | -- |
Learn more about Unknown Isa and the 1970 Southern Hemisphere hurricane season in our hurricane archive.
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