1998 Basin: South Indian Ocean Total storms: 21
| Index | ID | Name | Period | Min Sea Level Pressure (hPa) |
Max wind speed (knots) | # overpasses | # Features | snapshots | Rain accumulation |
| 1 | 199809 | SELWYN | 19980101 - 19980102 | -9999999 | 65 | 3 | 33 | snapshots | rain accumulation |
| 2 | 199813 | NONAME | 19980117 - 19980122 | -9999999 | 35 | 11 | 65 | snapshots | rain accumulation |
| 3 | 199815 | TIFFANY | 19980122 - 19980201 | -9999999 | 120 | 16 | 122 | snapshots | rain accumulation |
| 4 | 199820 | ANACELLE | 19980205 - 19980213 | -9999999 | 115 | 17 | 137 | snapshots | rain accumulation |
| 5 | 199821 | NONAME | 19980201 - 19980209 | -9999999 | 35 | 19 | 157 | snapshots | rain accumulation |
| 6 | 199822 | VICTOR | 19980205 - 19980218 | -9999999 | 90 | 23 | 199 | snapshots | rain accumulation |
| 7 | 199823 | BELTANE | 19980212 - 19980218 | -9999999 | 40 | 15 | 103 | snapshots | rain accumulation |
| 8 | 199824 | NONAME | 19980215 - 19980218 | -9999999 | 45 | 9 | 69 | snapshots | rain accumulation |
| 9 | 199826 | DONALINE | 19980305 - 19980309 | -9999999 | 55 | 8 | 73 | snapshots | rain accumulation |
| 10 | 199827 | ELSIE | 19980305 - 19980318 | -9999999 | 90 | 22 | 169 | snapshots | rain accumulation |
| 11 | 199828 | FIONA | 19980314 - 19980319 | -9999999 | 35 | 11 | 86 | snapshots | rain accumulation |
| 12 | 199832 | GEMMA | 19980406 - 19980414 | -9999999 | 70 | 17 | 182 | snapshots | rain accumulation |
| 13 | 199834 | NONAME | 19980417 - 19980422 | -9999999 | 40 | 9 | 102 | snapshots | rain accumulation |
| 14 | 199835 | NONAME | 19980416 - 19980419 | -9999999 | 40 | 4 | 31 | snapshots | rain accumulation |
| 15 | 199901 | NONAME | 19980720 - 19980727 | -9999999 | 35 | 13 | 101 | snapshots | rain accumulation |
| 16 | 199902 | NONAME | 19980927 - 19981002 | -9999999 | 35 | 10 | 55 | snapshots | rain accumulation |
| 17 | 199903 | ZELIA | 19981006 - 19981010 | -9999999 | 45 | 8 | 64 | snapshots | rain accumulation |
| 18 | 199904 | ALISON | 19981106 - 19981112 | -9999999 | 70 | 13 | 109 | snapshots | rain accumulation |
| 19 | 199905 | BILLY | 19981201 - 19981207 | -9999999 | 65 | 11 | 79 | snapshots | rain accumulation |
| 20 | 199906 | THELMA | 19981204 - 19981215 | -9999999 | 135 | 19 | 152 | snapshots | rain accumulation |
| 21 | 199910 | CATHY | 19981223 - 19981229 | -9999999 | 40 | 11 | 87 | snapshots | rain accumulation |
