| Track: | 1963 North Indian Ocean cyclone season summary map.png |
| Basin: | NIO |
| Year: | 1963 |
| First Storm Formed: | January 3, 1963 |
| Last Storm Dissipated: | December 7, 1963 |
| Strongest Storm Name: | Three |
| Strongest Storm Winds: | 130 |
| Strongest Storm Pressure: | 920 |
| Total Disturbances: | 17 |
| Total Depressions: | 11 |
| Total Storms: | 6 |
| Total Intense: | 4 |
| Fatalities: | At least 11,735 |
| Five Seasons: | 1961, 1962, 1963, 1964, 1965 |
| Atlantic Season: | 1963 Atlantic hurricane season |
| East Pacific Season: | 1963 Pacific hurricane season |
| West Pacific Season: | 1963 Pacific typhoon season |
The 1963 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. There are two main seas in the North Indian Ocean—the Bay of Bengal to the east of the Indian subcontinent and the Arabian Sea to the west of India. The official Regional Specialized Meteorological Centre in this basin is the India Meteorological Department (IMD), while the Joint Typhoon Warning Center releases unofficial advisories. An average of four to six storms form in the North Indian Ocean every season with peaks in May and November.[1] Cyclones occurring between the meridians 45°E and 100°E are included in the season by the IMD.[2]
| Basin: | NIO |
| Track: | File:DeepDepression01-1963.png |
| Formed: | January 3 |
| Dissipated: | January 5 |
| Type1: | deepdepression |
| 3-Min Winds: | 25 |
| 1-Min Winds: | 25 |
This tropical depression stalled for three days.[3]
| Basin: | NIO |
| Track: | File:ESCSTwo-1963.png |
| Formed: | May 18 |
| Dissipated: | May 29 |
| 3-Min Winds: | 105 |
| 1-Min Winds: | 65 |
| Pressure: | 947 |
On May 19, a tropical disturbance formed over the Laccadive Islands, before tracking northwest towards the Arabian peninsula. The system achieved cyclone intensity on May 22. On May 24, a United States Weather Bureau reconnaissance aircraft flew into the 12abbr=onNaNabbr=on eye of the storm, encountering winds of 193 km/h (120 mph).[4] A ship 111km (69miles) west of the system reported winds of 68kn. At Salalah, a strong northerly wind set in during the morning of May 25. Later in the day, winds increased to gale force and a sandstorm reduced visibility to 400m (1,300feet). Later in the day of May 26 winds again increased to gale force and another sandstorm reduced visibility to 500m (1,600feet). As winds increased to 60kn the sandstorm became more severe, with visibility restricted to 50m (160feet). Late on the night of the 26th, winds shifted to northeast and heavy rains fell across the region through the morning hours. Skies remained cloudy with periods of rain into May 28. A total of 230mm was recorded at Salalah.[5] [6] An estimated 22,000 people were reported to have died, while a further 500,000 were left homeless.[7]
| Basin: | NIO |
| Track: | File:SCSThree-1963.png |
| Formed: | May 25 |
| Dissipated: | May 29 |
| 3-Min Winds: | 130 |
| 1-Min Winds: | 65 |
| Pressure: | 920 |
One of the strongest cyclones ever recorded in the Northern Indian Ocean. Had the lowest known pressure in the basin until it was surpassed by the 1991 Bangladesh cyclone.[8] Killed 11,520 people in Bangladesh.[9]
| Basin: | NIO |
| Track: | DeepDepressionFour-1963.png |
| Formed: | June 6 |
| Dissipated: | June 8 |
| 3-Min Winds: | 30 |
| 1-Min Winds: | 25 |
| Pressure: | 991 |
Produced torrential rains over parts of eastern India, peaking at 910mm in Cherrapunji.[10]
| Basin: | NIO |
| Track: | Depression05-1963.png |
| Formed: | June 24 |
| Dissipated: | June 26 |
| 3-Min Winds: | 25 |
| 1-Min Winds: | 25 |
| Pressure: | 999 |
This tropical depression moved from east to west.[11]
| Basin: | NIO |
| Track: | File:Depression06-1963.png |
| Formed: | July 4 |
| Dissipated: | July 6 |
| Type1: | niodepression |
| 1-Min Winds: | 25 |
This tropical depression moved from east to west.[12]
| Basin: | NIO |
| Track: | Depression07-1963.png |
| Formed: | August 9 |
| Dissipated: | August 14 |
| 3-Min Winds: | 25 |
| 1-Min Winds: | 25 |
| Pressure: | 991 |
This tropical depression moved from east to west.[13]
| Basin: | NIO |
| Track: | File:Depression08-1963.png |
| Formed: | September 7 |
| Dissipated: | September 16 |
| Type1: | deepdepression |
| 3-Min Winds: | 25 |
| 1-Min Winds: | 25 |
| Pressure: | 990 |
Heavy rains from the storm triggered severe flooding that killed at least 200 people.[14] The storm moved from east to west.
| Basin: | NIO |
| Track: | File:DeepDepression09-1963.png |
| Formed: | September 25 |
| Dissipated: | September 28 |
| 3-Min Winds: | 30 |
| 1-Min Winds: | 25 |
| Pressure: | 996 |
At least 15 people were killed by flooding triggered by the depression in Orissa.[15] The storm was formerly in the Western Pacific as an unnamed CMA tropical depression.
| Basin: | NIO |
| Track: | File:Depression10-1963.png |
| Formed: | October 5 |
| Dissipated: | October 7 |
| Type1: | niodepression |
| 3-Min Winds: | 30 |
| 1-Min Winds: | 25 |
| Pressure: | 995 |
Some loss of life was reported in East Pakistan.[16]
| Basin: | NIO |
| Track: | File:CS11-1963.png |
| Formed: | October 13 |
| Dissipated: | October 17 |
| 3-Min Winds: | 40 |
| 1-Min Winds: | 35 |
| Pressure: | 999 |
| Basin: | NIO |
| Track: | File:VSCS12-14 1963.png |
| Formed: | October 19 |
| Dissipated: | October 28 |
| 3-Min Winds: | 80 |
| 1-Min Winds: | 65 |
| Pressure: | 984 |
Significant damage and flooding took place in India, with some loss of life reported.[18] The storm was classified under two different designations, but was reanalyzed to be one system.[19]
| Basin: | NIO |
| Track: | File:Depression13-1963.png |
| Formed: | October 24 |
| Dissipated: | October 26 |
| Type1: | niodepression |
| 3-Min Winds: | 30 |
| 1-Min Winds: | 25 |
The storm moved from south to north.[20]
| Basin: | NIO |
| Track: | File:Depression15-1963.png |
| Formed: | November 24 |
| Dissipated: | November 25 |
| 3-Min Winds: | 25 |
This tropical depression moved from south to north.[21]
| Basin: | NIO |
| Track: | File:CS16-1963.png |
| Formed: | November 29 |
| Dissipated: | December 7 |
| 3-Min Winds: | 35 |
| 1-Min Winds: | 35 |
| Pressure: | 1002 |
This cyclonic storm moved from east to west.[22]
| Basin: | NIO |
| Track: | File:DeepDepression17-1963.png |
| Formed: | November 30 |
| Dissipated: | December 6 |
| 3-Min Winds: | 30 |
| 1-Min Winds: | 35 |
| Pressure: | 1004 |
This storm moved from east to west.[23]