1963 North Indian Ocean cyclone 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. The season has no official bounds but cyclones tend to form between April and December. 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. Cyclones occurring between the meridians 45°E and 100°E are included in the season by the IMD. Systems. Extremely Severe Cyclonic Storm Two. 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 eye of the storm, encountering winds of 193 km/h (120 mph). A ship west of the system reported winds of . 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 . Later in the day of May 26 winds again increased to gale force and another sandstorm reduced visibility to . As winds increased to the sandstorm became more severe, with visibility restricted to . 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 was recorded at Salalah. Super Cyclonic Storm Three. 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. Killed 11,520 people in East Pakistan. Deep Depression Four. Produced torrential rains over parts of eastern India, peaking at in Cherrapunji. Deep Depression Eight. Heavy rains from the storm triggered severe flooding that killed at least 200 people. Deep Depression Nine . At least 15 people were killed by flooding triggered by the depression in Orissa. Depression Ten. Some loss of life was reported in East Pakistan. Very Severe Cyclonic Storm Twelve. Significant damage and flooding took place in India, with some loss of life reported.