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1998 Hurricane/Tropical Data for Southern Indian Ocean

Track Map

Individual Storm Summary

Winds in knots, pressure in millibars, category is based on Saffir-Simpson scale.

#NameDateWindPresCat 
1Tropical Storm #1 18-24 JUL 45 - - 
2Tropical Storm #2 4-13 OCT 60 - - 
3Tropical Storm #3 24-28 OCT 35 - - 
4Cyclone #4 28 OCT- 4 NOV 100 - 3 
5Cyclone #5 15-21 NOV 70 - 1 
6Cyclone #6 21-27 NOV 90 - 2 
7Cyclone #7 2-10 DEC 65 - 1 
8Tropical Storm #8 24-29 DEC 40 - - 
9Cyclone #9 25 DEC- 2 JAN 65 - 1 
10Cyclone #10 1- 9 JAN 145 - 5 
11Cyclone #11 20 DEC- 9 JAN 140 - 5 
12Cyclone #12 1 JAN- 2 FEB 90 - 2 
13Tropical Storm #13 17-23 JAN 35 - - 
14Tropical Storm #14 21 JAN- 2 FEB 50 - - 
15Cyclone #15 22 JAN- 1 FEB 120 - 4 
16Tropical Storm #16 24-27 JAN 40 - - 
17Cyclone #17 31 JAN- 2 FEB 65 - 1 
18Cyclone #18 31 JAN- 4 FEB 75 - 1 
19Tropical Storm #19 31 JAN- 4 FEB 45 - - 
20Cyclone #20 5-13 FEB 115 - 4 
21Tropical Storm #21 1-10 FEB 35 - - 
22Cyclone #22 4-18 FEB 90 - 2 
23Tropical Storm #23 12-18 FEB 40 - - 
24Tropical Storm #24 15-18 FEB 45 - - 
25Tropical Storm #25 24-28 FEB 35 - - 
26Tropical Storm #26 4- 9 MAR 55 - - 
27Cyclone #27 4-18 MAR 90 - 2 
28Tropical Storm #28 13-20 MAR 35 - - 
29Cyclone #29 17-27 MAR 90 - 2 
30Cyclone #30 19-31 MAR 65 - 1 
31Cyclone #31 28 MAR- 6 APR 100 - 3 
32Cyclone #32 6-15 APR 70 - 1 
33Subtropical Storm #33 6- 7 APR 30 - - 
34Tropical Storm #34 17-22 APR 40 - - 
35Tropical Storm #35 16-19 APR 40 - - 
36Tropical Storm #36 20-26 APR 45 - - 
37Tropical Storm #37 29 APR- 1 MAY 35 - - 

Saffir-Simpson Scale

The chart color codes intensity (category based on Saffir-Simpson scale):

Type Category Pressure (mb) Winds
(knots)
Winds
(mph)
Line Color
Depression td ----- < 34 < 39 Green
Tropical Storm TS ----- 34-63 39-73 Yellow
Hurricane 1 > 980 64-82 74-95 Red
Hurricane 2 965-980 83-95 96-110 Light Red
Hurricane 3 945-965 96-112 111-130 Magenta
Hurricane 4 920-945 113-135 131-155 Light Magenta
Hurricane 5 < 920 >135 >155 White

NOTE: Pressures are in millibars and winds are in knots where one knot is equal to 1.15 mph


Individual Storm Details

Track Tropical Storm #37 (29 APR-01 MAY)
Storm - Max Winds: 35 TrackTracking information
Track Tropical Storm #36 (20-26 APR)
Storm - Max Winds: 45 TrackTracking information
Track Tropical Storm #35 (16-19 APR)
Storm - Max Winds: 40 TrackTracking information
Track Tropical Storm #34 (17-22 APR)
Storm - Max Winds: 40 TrackTracking information
Track Subtropical Storm #33 (06-07 APR)
Storm - Max Winds: 30 TrackTracking information
Track Cyclone #32 (06-15 APR)
Storm - Max Winds: 70 Category: 1 TrackTracking information
Track Cyclone #31 (28 MAR-06 APR)
Storm - Max Winds: 100 Category: 3 TrackTracking information
Track Cyclone #30 (19-31 MAR)
Storm - Max Winds: 65 Category: 1 TrackTracking information
Track Cyclone #29 (17-27 MAR)
Storm - Max Winds: 90 Category: 2 TrackTracking information
Track Tropical Storm #28 (13-20 MAR)
Storm - Max Winds: 35 TrackTracking information
Track Cyclone #27 (04-18 MAR)
Storm - Max Winds: 90 Category: 2 TrackTracking information
Track Tropical Storm #26 (04-09 MAR)
Storm - Max Winds: 55 TrackTracking information
Track Tropical Storm #25 (24-28 FEB)
Storm - Max Winds: 35 TrackTracking information
Track Tropical Storm #24 (15-18 FEB)
Storm - Max Winds: 45 TrackTracking information
Track Tropical Storm #23 (12-18 FEB)
Storm - Max Winds: 40 TrackTracking information
Track Cyclone #22 (04-18 FEB)
Storm - Max Winds: 90 Category: 2 TrackTracking information
Track Tropical Storm #21 (01-10 FEB)
Storm - Max Winds: 35 TrackTracking information
Track Cyclone #20 (05-13 FEB)
Storm - Max Winds: 115 Category: 4 TrackTracking information
Track Tropical Storm #19 (31 JAN-04 FEB)
Storm - Max Winds: 45 TrackTracking information
Track Cyclone #18 (31 JAN-04 FEB)
Storm - Max Winds: 75 Category: 1 TrackTracking information
Track Cyclone #17 (31 JAN-02 FEB)
Storm - Max Winds: 65 Category: 1 TrackTracking information
Track Tropical Storm #16 (24-27 JAN)
Storm - Max Winds: 40 TrackTracking information
Track Cyclone #15 (22 JAN-01 FEB)
Storm - Max Winds: 120 Category: 4 TrackTracking information
Track Tropical Storm #14 (21 JAN-02 FEB)
Storm - Max Winds: 50 TrackTracking information
Track Tropical Storm #13 (17-23 JAN)
Storm - Max Winds: 35 TrackTracking information
Track Cyclone #12 (01 JAN-02 FEB)
Storm - Max Winds: 90 Category: 2 TrackTracking information
Track Cyclone #11 (20 DEC-09 JAN)
Storm - Max Winds: 140 Category: 5 TrackTracking information
Track Cyclone #10 (01-09 JAN)
Storm - Max Winds: 145 Category: 5 TrackTracking information
Track Cyclone #9 (25 DEC-02 JAN)
Storm - Max Winds: 65 Category: 1 TrackTracking information
Track Tropical Storm #8 (24-29 DEC)
Storm - Max Winds: 40 TrackTracking information
Track Cyclone #7 (02-10 DEC)
Storm - Max Winds: 65 Category: 1 TrackTracking information
Track Cyclone #6 (21-27 NOV)
Storm - Max Winds: 90 Category: 2 TrackTracking information
Track Cyclone #5 (15-21 NOV)
Storm - Max Winds: 70 Category: 1 TrackTracking information
Track Cyclone #4 (28 OCT-04 NOV)
Storm - Max Winds: 100 Category: 3 TrackTracking information
Track Tropical Storm #3 (24-28 OCT)
Storm - Max Winds: 35 TrackTracking information
Track Tropical Storm #2 (04-13 OCT)
Storm - Max Winds: 60 TrackTracking information
Track Tropical Storm #1 (18-24 JUL)
Storm - Max Winds: 45 TrackTracking information