1971 Odisha cyclone

North Indian Ocean cyclone in 1971
1971 Odisha cyclone
1971 Odisha cyclone, pictured by ESSA 9 weather satellite
Meteorological history
FormedOctober 27, 1971
DissipatedOctober 31, 1971
Extremely severe cyclonic storm
3-minute sustained (IMD)
Highest winds165 km/h (105 mph)
Lowest pressure966 hPa (mbar); 28.53 inHg
Category 3-equivalent tropical cyclone
1-minute sustained (SSHWS/JTWC)
Highest winds185 km/h (115 mph)
Overall effects
Fatalities≥10,000 total
Areas affectedIndia and East Pakistan (present-day Bangladesh)

Part of the 1971 North Indian Ocean cyclone season

The 1971 Odisha cyclone was a devastating tropical cyclone that struck the Indian state of Odisha (known as Orissa at the time) on October 29, 1971. The cyclone also affected the Indian state of West Bengal as well as East Pakistan (present-day Bangladesh), which had been devastated by the 1970 Bhola cyclone just less than a year prior and was in the middle of Bangladesh Liberation War.

Meteorological history

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
circle Tropical cyclone
square Subtropical cyclone
triangle Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression