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2011 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 25-31 OCT 35 996 - 
2Tropical Storm #2 29 OCT- 6 NOV 55 982 - 
3Cyclone #3 26 NOV- 4 DEC 80 963 1 
4Tropical Storm #4 23-26 DEC 40 993 - 
5Tropical Storm #5 11-15 JAN 55 982 - 
6Tropical Storm #6 10-16 JAN 45 989 - 
7Cyclone #7 12-18 JAN 95 952 2 
8Cyclone #8 20-28 JAN 115 937 4 
9Tropical Storm #9 22-31 JAN 55 982 - 
10Cyclone #10 24-30 JAN 95 952 2 
11Cyclone #11 29 JAN- 6 FEB 135 922 4 
12Tropical Storm #12 3- 8 FEB 45 989 - 
13Cyclone #13 8-18 FEB 100 948 3 
14Tropical Storm #14 9-13 FEB 35 996 - 
15Cyclone #15 14-26 FEB 65 974 1 
16Cyclone #16 14-22 FEB 80 963 1 
17Cyclone #17 17-25 FEB 115 937 4 
18Tropical Storm #18 14-23 MAR 45 989 - 
19Cyclone #19 22-29 MAR 75 967 1 
20Tropical Storm #20 30 MAR- 4 APR 35 996 - 
21Tropical Storm #21 13-18 APR 55 982 - 

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 #21 (13-18 APR)
Storm - Max Winds: 55 Min Pres: 982 TrackTracking information
Track Tropical Storm #20 (30 MAR-04 APR)
Storm - Max Winds: 35 Min Pres: 996 TrackTracking information
Track Cyclone #19 (22-29 MAR)
Storm - Max Winds: 75 Min Pres: 967 Category: 1 TrackTracking information
Track Tropical Storm #18 (14-23 MAR)
Storm - Max Winds: 45 Min Pres: 989 TrackTracking information
Track Cyclone #17 (17-25 FEB)
Storm - Max Winds: 115 Min Pres: 937 Category: 4 TrackTracking information
Track Cyclone #16 (14-22 FEB)
Storm - Max Winds: 80 Min Pres: 963 Category: 1 TrackTracking information
Track Cyclone #15 (14-26 FEB)
Storm - Max Winds: 65 Min Pres: 974 Category: 1 TrackTracking information
Track Tropical Storm #14 (09-13 FEB)
Storm - Max Winds: 35 Min Pres: 996 TrackTracking information
Track Cyclone #13 (08-18 FEB)
Storm - Max Winds: 100 Min Pres: 948 Category: 3 TrackTracking information
Track Tropical Storm #12 (03-08 FEB)
Storm - Max Winds: 45 Min Pres: 989 TrackTracking information
Track Cyclone #11 (29 JAN-06 FEB)
Storm - Max Winds: 135 Min Pres: 922 Category: 4 TrackTracking information
Track Cyclone #10 (24-30 JAN)
Storm - Max Winds: 95 Min Pres: 952 Category: 2 TrackTracking information
Track Tropical Storm #9 (22-31 JAN)
Storm - Max Winds: 55 Min Pres: 982 TrackTracking information
Track Cyclone #8 (20-28 JAN)
Storm - Max Winds: 115 Min Pres: 937 Category: 4 TrackTracking information
Track Cyclone #7 (12-18 JAN)
Storm - Max Winds: 95 Min Pres: 952 Category: 2 TrackTracking information
Track Tropical Storm #6 (10-16 JAN)
Storm - Max Winds: 45 Min Pres: 989 TrackTracking information
Track Tropical Storm #5 (11-15 JAN)
Storm - Max Winds: 55 Min Pres: 982 TrackTracking information
Track Tropical Storm #4 (23-26 DEC)
Storm - Max Winds: 40 Min Pres: 993 TrackTracking information
Track Cyclone #3 (26 NOV-04 DEC)
Storm - Max Winds: 80 Min Pres: 963 Category: 1 TrackTracking information
Track Tropical Storm #2 (29 OCT-06 NOV)
Storm - Max Winds: 55 Min Pres: 982 TrackTracking information
Track Tropical Storm #1 (25-31 OCT)
Storm - Max Winds: 35 Min Pres: 996 TrackTracking information