In this study, we use the S-band Doppler Weather Radar to analyze the weather of a prolonged classical supercell storm that occurred on April 7, 2018, across the Indian state of Bihar. In the early morning hours of April 7th, 2018, a supercell storm with its origins in a colliding cloud mass produced in the Himalayan foothills invaded the Himalayan foothills from the North-West of Bihar via East Uttar Pradesh. The echo top increased to over 14 kilometers as it moved through the Bihar districts of Siwan and Gopalganj. As it followed, the storm shifted direction, heading northwest. Maximum radar reflectivity reached up to 61 dBz at 11: 32 IST observation (seen from Doppler Weather Radar, Patna), which may be the highest reflectivity ever recorded at DWR (Doppler Weather Radar) Station, Patna. It stopped being a supercell at 13: 30 IST and convert into a multicellular storm. A strange hook echo could be seen off the Storm's back in the Vertical Integrated Liquid profile. The supercell had two linked outflows, one to the northeast and one to the southeast. The Supercell's inverted "V"-shaped front flank was another characteristic feature. Within a small vertical band along the echo wall, reflectance reached over 60 dB at its highest. There was significant divergence near the peak of the supercell storm, with the speed differential between the updraft and downdraft reaching around 60 m/s. The system lasted for about 7 to 8 hours, damaging hailstorms occurred often along the path. Hail stones larger than 6-7 mm in diameter were spotted (as per the observed report). This particular cell was determined to be a supercell based on its internal structure, reflectivity, duration, and ground-level weather pattern. The incidence, timing, and development of the storms were all accurately predicted by the convective outlook products 2 to 3 hours in advance.
| Published in | International Journal of Atmospheric and Oceanic Sciences (Volume 8, Issue 1) |
| DOI | 10.11648/j.ijaos.20240801.14 |
| Page(s) | 40-51 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Supercell Storm, Vertical Integrated Liquid, Vertical Profiles of Radar Reflectivity, Doppler Weather Radar
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APA Style
Shankar, A. (2024). Analysis of a Case of a Classical Supercell Storm in Bihar, India: Observation and Tracking. International Journal of Atmospheric and Oceanic Sciences, 8(1), 40-51. https://doi.org/10.11648/j.ijaos.20240801.14
ACS Style
Shankar, A. Analysis of a Case of a Classical Supercell Storm in Bihar, India: Observation and Tracking. Int. J. Atmos. Oceanic Sci. 2024, 8(1), 40-51. doi: 10.11648/j.ijaos.20240801.14
AMA Style
Shankar A. Analysis of a Case of a Classical Supercell Storm in Bihar, India: Observation and Tracking. Int J Atmos Oceanic Sci. 2024;8(1):40-51. doi: 10.11648/j.ijaos.20240801.14
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Download@article{10.11648/j.ijaos.20240801.14,
author = {Anand Shankar},
title = {Analysis of a Case of a Classical Supercell Storm in Bihar, India: Observation and Tracking
},
journal = {International Journal of Atmospheric and Oceanic Sciences},
volume = {8},
number = {1},
pages = {40-51},
doi = {10.11648/j.ijaos.20240801.14},
url = {https://doi.org/10.11648/j.ijaos.20240801.14},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijaos.20240801.14},
abstract = {In this study, we use the S-band Doppler Weather Radar to analyze the weather of a prolonged classical supercell storm that occurred on April 7, 2018, across the Indian state of Bihar. In the early morning hours of April 7th, 2018, a supercell storm with its origins in a colliding cloud mass produced in the Himalayan foothills invaded the Himalayan foothills from the North-West of Bihar via East Uttar Pradesh. The echo top increased to over 14 kilometers as it moved through the Bihar districts of Siwan and Gopalganj. As it followed, the storm shifted direction, heading northwest. Maximum radar reflectivity reached up to 61 dBz at 11: 32 IST observation (seen from Doppler Weather Radar, Patna), which may be the highest reflectivity ever recorded at DWR (Doppler Weather Radar) Station, Patna. It stopped being a supercell at 13: 30 IST and convert into a multicellular storm. A strange hook echo could be seen off the Storm's back in the Vertical Integrated Liquid profile. The supercell had two linked outflows, one to the northeast and one to the southeast. The Supercell's inverted "V"-shaped front flank was another characteristic feature. Within a small vertical band along the echo wall, reflectance reached over 60 dB at its highest. There was significant divergence near the peak of the supercell storm, with the speed differential between the updraft and downdraft reaching around 60 m/s. The system lasted for about 7 to 8 hours, damaging hailstorms occurred often along the path. Hail stones larger than 6-7 mm in diameter were spotted (as per the observed report). This particular cell was determined to be a supercell based on its internal structure, reflectivity, duration, and ground-level weather pattern. The incidence, timing, and development of the storms were all accurately predicted by the convective outlook products 2 to 3 hours in advance.
},
year = {2024}
}
TY - JOUR T1 - Analysis of a Case of a Classical Supercell Storm in Bihar, India: Observation and Tracking AU - Anand Shankar Y1 - 2024/09/29 PY - 2024 N1 - https://doi.org/10.11648/j.ijaos.20240801.14 DO - 10.11648/j.ijaos.20240801.14 T2 - International Journal of Atmospheric and Oceanic Sciences JF - International Journal of Atmospheric and Oceanic Sciences JO - International Journal of Atmospheric and Oceanic Sciences SP - 40 EP - 51 PB - Science Publishing Group SN - 2640-1150 UR - https://doi.org/10.11648/j.ijaos.20240801.14 AB - In this study, we use the S-band Doppler Weather Radar to analyze the weather of a prolonged classical supercell storm that occurred on April 7, 2018, across the Indian state of Bihar. In the early morning hours of April 7th, 2018, a supercell storm with its origins in a colliding cloud mass produced in the Himalayan foothills invaded the Himalayan foothills from the North-West of Bihar via East Uttar Pradesh. The echo top increased to over 14 kilometers as it moved through the Bihar districts of Siwan and Gopalganj. As it followed, the storm shifted direction, heading northwest. Maximum radar reflectivity reached up to 61 dBz at 11: 32 IST observation (seen from Doppler Weather Radar, Patna), which may be the highest reflectivity ever recorded at DWR (Doppler Weather Radar) Station, Patna. It stopped being a supercell at 13: 30 IST and convert into a multicellular storm. A strange hook echo could be seen off the Storm's back in the Vertical Integrated Liquid profile. The supercell had two linked outflows, one to the northeast and one to the southeast. The Supercell's inverted "V"-shaped front flank was another characteristic feature. Within a small vertical band along the echo wall, reflectance reached over 60 dB at its highest. There was significant divergence near the peak of the supercell storm, with the speed differential between the updraft and downdraft reaching around 60 m/s. The system lasted for about 7 to 8 hours, damaging hailstorms occurred often along the path. Hail stones larger than 6-7 mm in diameter were spotted (as per the observed report). This particular cell was determined to be a supercell based on its internal structure, reflectivity, duration, and ground-level weather pattern. The incidence, timing, and development of the storms were all accurately predicted by the convective outlook products 2 to 3 hours in advance. VL - 8 IS - 1 ER -
Department of Electronics & Communication Engineering, National Institute of Technology, Patna, India; India Meteorological Department, Ministry of Earth Sciences, Govt. of India, Patna, India
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