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| Extremely severe cyclonic storm (IMD scale) | |
|---|---|
 | |
| Formed | October 21, 1968 |
| Dissipated | October 28, 1968 |
| Highest winds | 3-minute sustained: 195 km/h (120 mph) |
| Lowest pressure | 964 hPa (mbar); 28.47 inHg |
| Fatalities | Unknown |
| Damage | Unknown |
| Areas affected | India (Odisha, West Bengal) |
| Part of the 1968 North Indian Ocean cyclone season | |
The 1968 Odisha cyclone was a devastating cyclone that impacted the present day state of Odisha, It was considered the one of the most powerful cyclone ever imapcted the state before the 1999 Odisha cyclone.
Meteorological history
editA cyclonic circulation was formed over the Gulf of Siam on October 16. By October 17 it moved into the Andaman Sea, where the system became organised and became a low pressure area. On October 20 at 03:00 UTC (08:30 IST), the existing low pressure area became a well-marked low pressure and on the next day it further intensified into a depression. On October 22, the depression became a deep depression and on October 23, it became a cyclonic storm as it moved west-northwestwards with ESSA-6's satellite imagery showing that the storm have some amount of cloud bandings. As the storm moved northwesterly, the storm further intensified into a severe cyclonic storm on October 23, at 12:00 UTC (17:30 IST), with its core producing hurricane-force winds. Two ships which were located two degrees far from the eastern and western side of the storm, reported that the system had winds of 30 to 35 kn (55 to 65 km/h; 35 to 40 mph). The U.S Weather Bureau at Washington D.C reported that the system have a Category 2 hurricane equivalent strength. As it took the north-northwesterly course the system further intensified into a Category 3 hurricane equivalent strength on October 24, S.S Jalavijaya reported winds of 60 kn (110 km/h; 70 mph) blowing from the south between 02:00 UTC and 04:00 UTC (07:30 IST and 09:30 IST). ESSA-6;s satellite imagery also showed a cyclonic vortex with spiral bandings. At 12:00 UTC (17:30 IST), ESSA-7's satellite imagery revealed that the storm have a small ragged eye. On October 25, at 04:45 UTC (10:15 IST), ESSA-6 satellite imagery showed that it have a central overcast of 4 to 5 degrees in diameter and have spiral banding in all sectors.
== Preparation