iPhone App1971 Hurricane/Tropical Data for Southern Indian Ocean
Individual Storm Summary
Winds in knots, pressure in millibars, category is based on Saffir-Simpson scale.
| # | Name | Date | Wind | Pres | Cat | |
| 1 | Unknown Storm #1 | 5- 9 OCT | - | - | - | |
| 2 | Unknown Storm #2 | 5-13 NOV | - | - | - | |
| 3 | Unknown Storm #3 | 21-30 NOV | - | - | - | |
| 4 | Unknown Storm #4 | 14-28 DEC | - | - | - | |
| 5 | Unknown Storm #5 | 20-23 DEC | - | - | - | |
| 6 | Unknown Storm #6 | 30 DEC- 1 JAN | - | - | - | |
| 7 | Unknown Storm #7 | 30 DEC- 6 JAN | - | - | - | |
| 8 | Unknown Storm #8 | 17-31 JAN | - | - | - | |
| 9 | Unknown Storm #9 | 17 JAN- 5 FEB | - | - | - | |
| 10 | Unknown Storm #10 | 21-31 JAN | - | - | - | |
| 11 | Tropical Storm #11 | 23-30 JAN | 45 | - | - | |
| 12 | Cyclone #12 | 29 JAN- 6 FEB | 70 | - | 1 | |
| 13 | Tropical Storm #13 | 1- 3 FEB | 45 | - | - | |
| 14 | Unknown Storm #14 | 3-12 FEB | - | - | - | |
| 15 | Tropical Storm #15 | 10-17 FEB | 60 | - | - | |
| 16 | Cyclone #16 | 11-16 FEB | 65 | - | 1 | |
| 17 | Unknown Storm #17 | 12-15 FEB | - | - | - | |
| 18 | Tropical Storm #18 | 15-21 FEB | 45 | - | - | |
| 19 | Unknown Storm #19 | 15-22 FEB | - | - | - | |
| 20 | Unknown Storm #20 | 16-25 FEB | - | - | - | |
| 21 | Tropical Storm #21 | 16-28 FEB | 50 | - | - | |
| 22 | Unknown Storm #22 | 21-28 FEB | - | - | - | |
| 23 | Unknown Storm #23 | 10-17 MAR | - | - | - | |
| 24 | Tropical Storm #24 | 13-19 MAR | 55 | - | - | |
| 25 | Unknown Storm #25 | 15-24 MAR | - | - | - | |
| 26 | Tropical Storm #26 | 23-29 MAR | 50 | - | - |
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
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Tropical Storm #26 (23-29 MAR) Storm - Max Winds: 50  Tracking information |
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Unknown Storm #25 (15-24 MAR) Storm - Tracking information |
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Tropical Storm #24 (13-19 MAR) Storm - Max Winds: 55 Tracking information |
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Unknown Storm #23 (10-17 MAR) Storm - Tracking information |
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Unknown Storm #22 (21-28 FEB) Storm - Tracking information |
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Tropical Storm #21 (16-28 FEB) Storm - Max Winds: 50 Tracking information |
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Unknown Storm #20 (16-25 FEB) Storm - Tracking information |
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Unknown Storm #19 (15-22 FEB) Storm - Tracking information |
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Tropical Storm #18 (15-21 FEB) Storm - Max Winds: 45 Tracking information |
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Unknown Storm #17 (12-15 FEB) Storm - Tracking information |
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Cyclone #16 (11-16 FEB) Storm - Max Winds: 65 Category: 1 Tracking information |
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Tropical Storm #15 (10-17 FEB) Storm - Max Winds: 60 Tracking information |
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Unknown Storm #14 (03-12 FEB) Storm - Tracking information |
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Tropical Storm #13 (01-03 FEB) Storm - Max Winds: 45 Tracking information |
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Cyclone #12 (29 JAN-06 FEB) Storm - Max Winds: 70 Category: 1 Tracking information |
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Tropical Storm #11 (23-30 JAN) Storm - Max Winds: 45 Tracking information |
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Unknown Storm #10 (21-31 JAN) Storm - Tracking information |
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Unknown Storm #9 (17 JAN-05 FEB) Storm - Tracking information |
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Unknown Storm #8 (17-31 JAN) Storm - Tracking information |
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Unknown Storm #7 (30 DEC-06 JAN) Storm - Tracking information |
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Unknown Storm #6 (30 DEC-01 JAN) Storm - Tracking information |
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Unknown Storm #5 (20-23 DEC) Storm - Tracking information |
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Unknown Storm #4 (14-28 DEC) Storm - Tracking information |
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Unknown Storm #3 (21-30 NOV) Storm - Tracking information |
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Unknown Storm #2 (05-13 NOV) Storm - Tracking information |
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Unknown Storm #1 (05-09 OCT) Storm - Tracking information |