1999 North Indian Ocean cyclone season
| 1999 North Indian Ocean cyclone season | |
|---|---|
Season summary map
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| Seasonal boundaries | |
| First system formed | February 2, 1999 |
| Last system dissipated | December 10, 1999 |
| Strongest storm | |
| Name | 05B |
| • Maximum winds | 260 km/h (160 mph) (3-minute sustained) |
| • Lowest pressure | 912 hPa (mbar) |
| Seasonal statistics | |
| Depressions | 8 official, 2 unofficial |
| Deep depressions | 6 official, 2 unofficial |
| Cyclonic storms | 4 official, 1 unofficial |
| Severe cyclonic storms | 4 |
| Total fatalities | At least 15,780 |
| Total damage | $5 billion (1999 USD) |
| Related articles | |
| Cyclonic Storm (IMD) | |
| Tropical storm (SSHWS) | |
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| Duration | February 2 – February 5 |
|---|---|
| Peak intensity | 95 km/h (60 mph) (3-min) 998 hPa (mbar) |
| Extremely severe cyclonic storm (IMD) | |
| Category 3 tropical cyclone (SSHWS) | |
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| Duration | May 16 – May 22 |
|---|---|
| Peak intensity | 195 km/h (120 mph) (3-min) 946 hPa (mbar) |
| Tropical storm (SSHWS) | |
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| Duration | June 8 – June 11 |
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| Peak intensity | 65 km/h (40 mph) (1-min) 997 hPa (mbar) |
| Deep depression (IMD) | |
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| Duration | June 17 – June 17 |
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| Peak intensity | 55 km/h (35 mph) (3-min) 986 hPa (mbar) |
| Deep depression (IMD) | |
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| Duration | July 27 – July 28 |
|---|---|
| Peak intensity | 55 km/h (35 mph) (3-min) 990 hPa (mbar) |
| Depression (IMD) | |
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| Duration | August 6 – August 9 |
|---|---|
| Peak intensity | 45 km/h (30 mph) (3-min) 992 hPa (mbar) |
| Extremely severe cyclonic storm (IMD) | |
| Category 4 tropical cyclone (SSHWS) | |
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| Duration | October 15 – October 19 |
|---|---|
| Peak intensity | 165 km/h (105 mph) (3-min) 968 hPa (mbar) |
| Super cyclonic storm (IMD) | |
| Category 5 tropical cyclone (SSHWS) | |
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| Duration | October 25 – November 3 |
|---|---|
| Peak intensity | 260 km/h (160 mph) (3-min) 912 hPa (mbar) |
| Tropical depression (SSHWS) | |
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| Duration | December 5 (Entered basin) – December 5 |
|---|---|
| Peak intensity | 35 km/h (25 mph) (1-min) |
The 1999 North Indian Ocean cyclone season was an event in the annual cycle of tropical cyclone formation. The North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between April and December, with peaks in May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean.
The scope of this article is limited to the Indian Ocean in the Northern Hemisphere, east of the Horn of Africa and west of the Malay Peninsula. There are two main seas in the North Indian Ocean – the Arabian Sea to the west of the Indian subcontinent, abbreviated ARB by the India Meteorological Department (IMD); and the Bay of Bengal to the east, abbreviated BOB by the IMD.
The official Regional Specialized Meteorological Centre in this basin is the India Meteorological Department (IMD), while the Joint Typhoon Warning Center releases unofficial advisories. The tropical cyclone scale for this basin is detailed on the right. On average, 4 to 6 storms form in this basin every season.
The season produced an average number of storms but there was an above average number of intense cyclones. In May, a Category 3 cyclone struck Pakistan, leaving at 700 people dead or missing. In October, two very intense cyclones struck eastern India within two weeks of each other, leaving over 10,000 people dead and causing more than $4.5 billion (1999 US$) in damages.
During the 1999 season, a total of ten tropical cyclones were observed. The India Meteorological Department, the official Regional Specialized Meteorological Center of the North Indian Ocean basin, identified eight of them. The Joint Typhoon Warning Center unofficially tracked two additional cyclones, 03B and 31W, during the course of the season.
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