Climatological and synoptic aspect of hailstorm and squall over Guwahati Airport during pre-monsoon season

Authors

  • G. K. DAS Regional Meteorological Centre, Kolkata – 700 027, India
  • H. R. BISWAS Regional Meteorological Centre, Kolkata – 700 027, India
  • R. P. SAMUI Meteorological Office, Pune – 411 005, India
  • P. A. KORE Meteorological Office, Pune – 411 005, India
  • L. A. SIDDIQUE India Meteorological Department, New Delhi – 110 003, India
  • B. BARMAN Regional Meteorological Centre, Guwahati – 781 015, India

DOI:

https://doi.org/10.54302/mausam.v61i3.840

Keywords:

Climatology, Hail, Squall, Synoptic situation, CAPE, CINE

Abstract

Premonsoon season in north-east India is known for thunderstorm activity with moderate to heavy rain, gusty wind, squall and sometimes with the occurrences of hail fall. In this paper an attempt has been made to find out the climatological and synoptical aspects of hailstorms as well as squall over Guwahati Airport (26.18° N, 91.75° E) during Premonsoon season. 20 years data from 1987 to 2006 have been analyzed. The frequency of hail and squall during premonsoon season is observed to be 1.35 and 3.65 respectively. The most favourable time of occurrence of hail is during afternoon to late evening and that for the occurrence of squall is during evening to early morning over Guwahati Airport. The significant synoptic situations associated with occurrence of hail are Sea level trough from East Uttar Pradesh/Bihar to North-East India and low level cycir over Bihar and neighbourhood.

 

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Published

01-07-2010

How to Cite

[1]
G. K. . DAS, H. R. . BISWAS, R. P. . SAMUI, P. A. . KORE, L. A. . SIDDIQUE, and B. . BARMAN, “Climatological and synoptic aspect of hailstorm and squall over Guwahati Airport during pre-monsoon season”, MAUSAM, vol. 61, no. 3, pp. 383–390, Jul. 2010.

Issue

Vol. 61 No. 3 (2010): MAUSAM

Section

Shorter Contribution

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