1999 Hurricane/Tropical Data for Southern Indian Ocean

Individual Storm Summary

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

#NameDateWindPresCat 
1Cyclone 80 11-12 NOV 65 - 1 
2Tropical Storm #1 20-27 JUL 35 - - 
3Tropical Storm #2 27 SEP- 2 OCT 35 - - 
4Tropical Storm #3 6-10 OCT 45 - - 
5Cyclone #4 6-12 NOV 70 - 1 
6Cyclone #5 1- 7 DEC 65 - 1 
7Cyclone #6 4-15 DEC 135 - 4 
8Tropical Storm #7 13-18 DEC 35 - - 
9Tropical Storm #8 21-24 DEC 50 - - 
10Cyclone #9 22-28 DEC 90 - 2 
11Tropical Storm #10 23-30 DEC 40 - - 
12Cyclone #11 13-23 JAN 115 - 4 
13Cyclone #12 15-19 JAN 65 - 1 
14Tropical Storm #13 19-26 JAN 55 - - 
15Tropical Storm #14 21-29 JAN 55 - - 
16Cyclone #15 21 JAN- 1 FEB 80 - 1 
17Tropical Storm #16 24-27 JAN 35 - - 
18Tropical Storm #17 29 JAN- 5 FEB 40 - - 
19Tropical Storm #18 2-11 FEB 40 - - 
20Tropical Storm #19 8-14 FEB 45 - - 
21Tropical Storm #20 10-13 FEB 55 - - 
22Tropical Storm #21 12-16 FEB 45 - - 
23Cyclone #22 16-26 FEB 95 - 2 
24Storm #23 24 FEB- 1 MAR 30 - - 
25Tropical Storm #24 26-28 FEB 40 - - 
26Cyclone #25 1-15 MAR 110 - 3 
27Tropical Storm #26 3-10 MAR 35 - - 
28Tropical Storm #27 11-18 MAR 50 - - 
29Cyclone #28 15-20 MAR 100 - 3 
30Tropical Storm #29 15-19 MAR 35 - - 
31Cyclone #30 16-23 MAR 125 - 4 
32Cyclone #31 25 MAR- 7 APR 140 - 5 
33Cyclone #32 3- 8 APR 130 - 4 
34Tropical Storm #33 17-25 APR 45 - - 
35Tropical Storm #89 24-26 FEB 40 - - 

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

Cyclone 80 (11-12 NOV)
Storm - Max Winds: 65 Category: 1

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Tropical Storm #1 (20-27 JUL)
Storm - Max Winds: 35

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Tropical Storm #2 (27 SEP-02 OCT)
Storm - Max Winds: 35

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Tropical Storm #3 (06-10 OCT)
Storm - Max Winds: 45

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Cyclone #4 (06-12 NOV)
Storm - Max Winds: 70 Category: 1

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Cyclone #5 (01-07 DEC)
Storm - Max Winds: 65 Category: 1

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Cyclone #6 (04-15 DEC)
Storm - Max Winds: 135 Category: 4

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Tropical Storm #7 (13-18 DEC)
Storm - Max Winds: 35

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Tropical Storm #8 (21-24 DEC)
Storm - Max Winds: 50

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Cyclone #9 (22-28 DEC)
Storm - Max Winds: 90 Category: 2

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Tropical Storm #10 (23-30 DEC)
Storm - Max Winds: 40

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Cyclone #11 (13-23 JAN)
Storm - Max Winds: 115 Category: 4

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Cyclone #12 (15-19 JAN)
Storm - Max Winds: 65 Category: 1

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Tropical Storm #13 (19-26 JAN)
Storm - Max Winds: 55

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Tropical Storm #14 (21-29 JAN)
Storm - Max Winds: 55

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Cyclone #15 (21 JAN-01 FEB)
Storm - Max Winds: 80 Category: 1

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Tropical Storm #16 (24-27 JAN)
Storm - Max Winds: 35

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Tropical Storm #17 (29 JAN-05 FEB)
Storm - Max Winds: 40

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Tropical Storm #18 (02-11 FEB)
Storm - Max Winds: 40

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Tropical Storm #19 (08-14 FEB)
Storm - Max Winds: 45

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Tropical Storm #20 (10-13 FEB)
Storm - Max Winds: 55

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Tropical Storm #21 (12-16 FEB)
Storm - Max Winds: 45

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Cyclone #22 (16-26 FEB)
Storm - Max Winds: 95 Category: 2

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Storm #23 (24 FEB-01 MAR)
Storm - Max Winds: 30

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Tropical Storm #24 (26-28 FEB)
Storm - Max Winds: 40

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Cyclone #25 (01-15 MAR)
Storm - Max Winds: 110 Category: 3

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Tropical Storm #26 (03-10 MAR)
Storm - Max Winds: 35

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Tropical Storm #27 (11-18 MAR)
Storm - Max Winds: 50

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Cyclone #28 (15-20 MAR)
Storm - Max Winds: 100 Category: 3

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Tropical Storm #29 (15-19 MAR)
Storm - Max Winds: 35

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Cyclone #30 (16-23 MAR)
Storm - Max Winds: 125 Category: 4

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Cyclone #31 (25 MAR-07 APR)
Storm - Max Winds: 140 Category: 5

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Cyclone #32 (03-08 APR)
Storm - Max Winds: 130 Category: 4

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Tropical Storm #33 (17-25 APR)
Storm - Max Winds: 45

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Tropical Storm #89 (24-26 FEB)
Storm - Max Winds: 40

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