1950 North Indian Ocean cyclone season
Season summary map
Seasonal boundaries
First system formedApril 8, 1950
Last system dissipatedDecember 6, 1950
Seasonal statistics
Depressions16
Deep depressions9
Cyclonic storms4
Total fatalitiesUnknown
Total damageUnknown
Related articles

The 1950 North Indian Ocean cyclone season was part of the annual cycle of tropical cyclone formation. 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 (JTWC) releases unofficial advisories. An average of five tropical cyclones 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]

Sixteen depressions developed during the 1950 season, with four of them becoming cyclonic storms while three of them formed over the land. Most tropical cyclones formed in this season are weak, as there is no severe cyclonic storms formed during this season.[3]

Season summary

Systems

Deep Depression One

Deep depression (IMD)
 
DurationApril 8 – April 13
Peak intensityWinds not specified;

A ship reported thunderstorm rains in the southeast of Sri Lanka in April 4 while a shallow low was formed in the southeast Bay of Bengal on the next day, when Car Nicobar experienced overcast conditions and northeasterly winds. The low moved west and a well-marked trough formed southeast of Sri Lanka in the morning of April 7. By April 8, the trough developed into depression as winds of 15 to 20 knots are reported by number of vessels, and a vessel reported southerly winds The depression tracked north and then tracking northeast by April 10. By April 11, the system intensified and begins to accelerate towards Burma on evening of the same day.[4] In April 13, the system moved ashore across southern Rakhine State coasts and quickly dissipated over land.[5]

The system dropped heavy rains on the east coast of Sri Lanka on April 8 and April 9. As the depression moved northeastwards, widespread rains occurred over Napier Bay Islands on April 11 and April 13, killing two people in Port Blair. As system made landfall near Burmese coast, heavy rains caused some damage to the property and five people.[5]

Deep Depression Two

Deep depression (IMD)
 
DurationMay 23 – May 30
Peak intensityWinds not specified;
998 hPa (mbar)

Cyclonic Storm Three

Cyclonic storm (IMD)
 
DurationJune 8 – June 12
Peak intensity85 km/h (50 mph) (3-min);

Depression Four

Depression (IMD)
 
DurationJune 23 – June 28
Peak intensityWinds not specified;

Depression Five

Depression (IMD)
 
DurationJuly 10 – July 12
Peak intensityWinds not specified;

Land Depression Six

Depression (IMD)
 
DurationJuly 11 – July 15
Peak intensityWinds not specified;

Depression Seven

Depression (IMD)
 
DurationJuly 25 – July 30
Peak intensityWinds not specified;

Land Depression Eight

Depression (IMD)
 
DurationAugust 3 – August 7
Peak intensityWinds not specified;

Depression Nine

Depression (IMD)
 
DurationAugust 9 – August 15
Peak intensityWinds not specified;

Land Depression Ten

Depression (IMD)
 
DurationSeptember 1 – September 5
Peak intensityWinds not specified;

Depression Eleven

Depression (IMD)
 
DurationSeptember 9 – September 11
Peak intensityWinds not specified;

Cyclonic Storm Twelve

Cyclonic storm (IMD)
 
DurationSeptember 12 – September 19
Peak intensity75 km/h (45 mph) (3-min);

Depression Thirteen

Depression (IMD)
 
DurationSeptember 22 – September 24
Peak intensityWinds not specified;

Depression Fourteen

Depression (IMD)
 
DurationOctober 17 – October 22
Peak intensityWinds not specified;

Cyclonic Storm Fifteen

Cyclonic storm (IMD)
 
DurationNovember 16 – November 20
Peak intensity85 km/h (50 mph) (3-min);

Cyclonic Storm Sixteen

Severe cyclonic storm (IMD)
 
DurationDecember 2 – December 6
Peak intensity95 km/h (60 mph) (3-min);
1000 hPa (mbar)

See also

References

  1. ↑ "Frequently Asked Questions: What is the annual frequency of Cyclones over the Indian Seas? What is its intra-annual variation?". India Meteorological Department. 2012. Archived from the original on May 21, 2015. Retrieved June 8, 2012.
  2. ↑ "Bulletins Issued by Regional Specialized Meteorological Centre (RSMC) – Tropical Cyclones, New Delhi" (PDF). India Meteorological Department. May 25, 2009. Archived from the original (PDF) on 2012-04-12. Retrieved July 16, 2012.
  3. ↑ Unattributed (2010-08-31). "Annual frequency of cyclonic disturbances (Maximum sustained windspeeds of 17 knots or more), Cyclones (34 knots or more) and Severe Cyclones (48 knots or more) over the Bay of Bengal (BOB), Arabian Sea (AS) and land surface of India" (PDF). India Meteorological Department. Archived from the original (PDF) on 2011-08-05. Retrieved 2011-08-20.
  4. ↑ "1950 Depression NOT_NAMED (1950098N05083)". IBTrACS. Retrieved 2 August 2020.
  5. 1 2 India Weather Review Annual Summary Part C Storms and Depressions 1950 (PDF) (Report). India Meteorological Department. 1951. pp. 1–12. Retrieved June 24, 2020.
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