1978 North Indian Ocean cyclone season

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1978 North Indian Ocean cyclone season
1978 North Indian Ocean cyclone season summary.jpg
Season summary map
Seasonal boundaries
First system formedMay 14, 1978
Last system dissipatedNovember 29, 1978
Strongest storm
 • Maximum winds220 km/h (140 mph)
(3-minute sustained)
 • Lowest pressure938 hPa (mbar)
Seasonal statistics
Deep depressions11
Cyclonic storms5
Severe cyclonic storms3
Total fatalities1000+
Total damage$626.89 million (1978 USD)
North Indian Ocean tropical cyclone seasons
1976, 1977, 1978, 1979, 1980

The 1978 North Indian Ocean cyclone season had no bounds, but tropical cyclones in the North Indian Ocean tend to form between April and December, with peaks in May and November. The 1978 season produced five cyclonic storms of which developed into three severe cyclonic storms. All Five of the storms formed in the Bay of Bengal and four of those made landfall. The most notable storm of the season was Cyclone Four which hit Sri Lanka.

Season summary

1978 Sri Lanka cyclone


Very Severe Cyclonic Storm BOB 01 (01B)

Very severe cyclonic storm (IMD)
Tropical storm (SSHWS)
01B 1978 track.png
DurationMay 14 – May 17
Peak intensity150 km/h (90 mph) (3-min) 964 hPa (mbar)

A depression formed in the northern Bay of Bengal on May 14 and move northward.[1] The depression slowly strengthened into a cyclonic storm On May 15. The storm reached its maximum intensity of 70 mph (115 km/h)[2] before making landfall in Eastern Bangladesh on May 17 and dissipating thereafter.[1] The effects from Cyclonic Storm One if any are unknown.

Cyclonic Storm BOB 09 (02B)

Cyclonic storm (IMD)
Tropical storm (SSHWS)
02B 1978 track.png
DurationOctober 25 – October 28
Peak intensity85 km/h (50 mph) (3-min) 

Another tropical depression formed in the Bay of Bengal on October 25 and moved northwestward.[1] The depression became a cyclonic storm the following day[3] The storm then turned to the northeast and then back to the northwest[1] were its winds peaked at 45 mph (70 km/h) before dissipating off the coast of Bangladesh on October 28.[3]

Extremely Severe Cyclonic Storm BOB 10 (03B)

Extremely severe cyclonic storm (IMD)
Category 1 tropical cyclone (SSHWS)
03B 1978 track.png
DurationNovember 3 – November 13
Peak intensity215 km/h (130 mph) (3-min) 940 hPa (mbar)

Super Cyclonic Storm BOB 11 (04B)

Super cyclonic storm (IMD)
Category 2 tropical cyclone (SSHWS)
04B 1978 track.png
DurationNovember 17 – November 29
Peak intensity220 km/h (140 mph) (3-min) 938 hPa (mbar)

The final tropical cyclone existed from November 19 to November 29.[4] The 1978 Sri Lanka cyclone was the strongest tropical cyclone to strike Eastern province of Sri Lanka, making landfall on November 23.

See also


  1. ^ a b c d Unisys (2007). "1978 Hurricane/Tropical Data for Northern Indian Ocean". Retrieved October 19, 2007.
  2. ^ Unisys (2007). "Cyclonic Storm One Best Track Data". Retrieved October 19, 2007.
  3. ^ a b Unisys (2007). "Cyclonic Storm Two Best Track Data". Retrieved November 2, 2007.
  4. ^ Unisys (2007). "Cyclonic Storm Four Best Track Data". Retrieved December 13, 2015.

External links