A premonsoon thunderstorm with tornadic characteristics at Calcutta
Keywords:Thunder squall, Dum-Dum and Alipore, Pumping
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.
How to Cite
Copyright (c) 2021 MAUSAM
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
All articles published by MAUSAM are licensed under the Creative Commons Attribution 4.0 International License. This permits anyone.
Anyone is free:
- To Share - to copy, distribute and transmit the work
- To Remix - to adapt the work.
Under the following conditions:
- Share - copy and redistribute the material in any medium or format
- Adapt - remix, transform, and build upon the material for any purpose, even