A premonsoon thunderstorm with tornadic characteristics at Calcutta

Authors

  • S. N. SEN
  • J. R. SEN GUPTA

DOI:

https://doi.org/10.54302/mausam.v12i1.4164

Keywords:

Thunder squall, Dum-Dum and Alipore, Pumping

Abstract

The unusual damage caused by a thundersquall with some tornadic characteristics, which passed over the southern parts of Calcutta on 21 May 1959 are described. The autographic charts at Calcutta (Alipore and Dum Dum) are presented and their special features discussed. The barogram at Alipore recorded pronounced “pumping" during passage of the thundersquall over the station. The sequences of development of thunderstorm with squalls from NW IN at first over the northern parts of Calcutta (Barrackpore and Dum Dum) followed by fresh thundersquall from the southwest which caused severe damage over localised area in south Calcutta, are discussed with reference to the synoptic situation and relevant observations recorded at Barrackpore, Dum Dum and Alipore.

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Published

01-01-1961

How to Cite

[1]
S. N. . SEN and J. R. S. . GUPTA, “A premonsoon thunderstorm with tornadic characteristics at Calcutta”, MAUSAM, vol. 12, no. 1, pp. 41–48, Jan. 1961.

Issue

Vol. 12 No. 1 (1961): MAUSAM

Section

Research Papers

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