| First storm formed | May 10, 2003 |
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| Last storm dissipated | December 16, 2003 |
| Strongest storm | 02A – 977 hPa (mbar), 115 km/h (75 mph) (1-minute sustained) |
| Deep depressions | 7 |
| Severe cyclonic storms | 3 |
| Very severe cyclonic storms | 0 |
| Total fatalities | Unknown |
| Total damage | Unknown |
| North Indian Ocean cyclone seasons 2001, 2002, 2003, 2004, 2005 |
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The 2003 North Indian Ocean cyclone season had no 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.
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Three tropical cyclones were observed, less than the average of 5-6. 1 reached Cyclone strength.
| Severe cyclonic storm (IMD) | |||
|---|---|---|---|
| Category 1 tropical cyclone (SSHS) | |||
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| Duration | May 10 – May 19 | ||
| Intensity | 115 km/h (75 mph) (3-min), 982 mbar (hPa) | ||
The first storm of the season developed from a broad surface trough on May 8 over the southern Bay of Bengal. It moved northwestward, where it reached tropical storm strength on the 10th. Mid-level ridging pushed the storm eastward, where after reaching a peak of 70 mph winds, upper level shear weakened it to a tropical depression. It managed to re-strengthen to a 50 mph tropical storm before hitting Myanmar on the 19th.
The IMD classified one depression over the Bay of Bengal on June 21 that dissipated over Bangladesh on June 22.
The IMD classified one depression that formed on July 25, crossed West Bengal - Orissa coast near Baleshwar, and dissipated on July 26.
| Depression (IMD) | |||
|---|---|---|---|
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| Duration | October 6 – October 7 | ||
| Intensity | 45 km/h (30 mph) (1-min), Unknown | ||
This system was not classified as a tropical depression by the Joint Typhoon Warning Center, but was tracked as a depression by India Meteorological Department.
| Deep depression (IMD) | |||
|---|---|---|---|
| Tropical storm (SSHS) | |||
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| Duration | October 23 – October 28 | ||
| Intensity | 55 km/h (35 mph) (3-min), 997 mbar (hPa) | ||
A tropical depression formed in the Gulf of Thailand on October 21. It tracked west-northwestward across the Malay Peninsula, ultimately hitting India as a minimal tropical storm.
| Severe cyclonic storm (IMD) | |||
|---|---|---|---|
| Category 1 tropical cyclone (SSHS) | |||
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| Duration | November 12 – November 15 | ||
| Intensity | 115 km/h (75 mph) (3-min), 977 mbar (hPa) | ||
On November 10, Tropical Depression 2A formed over the Arabian Sea. It moved west-southwestward where favorable conditions allowed it to strengthen, first to a tropical storm on the 12th then a hurricane on the 13th. Upper level winds caused it to dissipate on the 18th over the open waters.
| Severe cyclonic storm (IMD) | |||
|---|---|---|---|
| Tropical storm (SSHS) | |||
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| Duration | December 11 – December 16 | ||
| Intensity | 100 km/h (65 mph) (3-min), 992 mbar (hPa) | ||
The third and final tropical depression of the season developed on December 11 in the Bay of Bengal, a short distance northwest of Sumatra. It tracked northwestward, slowly intensifying to a peak of 65 mph winds. It struck False Divi Point, India on the 15th at that intensity, and dissipated the next day. Rainfall from the storm caused the deaths of 27 people and damage of 5100 homes in India.
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