Work

Rare winter‐thunderstorms with hail overnight 12/13 December 2019 over Delhi and its vicinity: an observational study

Year: 2024

Type: article

Abstract: A rare overnight thunderstorm with hail on 12/13 December 2019 over Delhi was driven by a Westerly Disturbance (WD) and analysed with the aid of multi‐platform observations. The Doppler weather radar (DWR) detected high reflectivity values (>50dBZ), indicating hail within towering convective clouds. In‐situ measurements showed intense rainfall (totalling ~134mm), accompanied by strong wind gusts and a rapid pressure drop. Satellite data revealed widespread cold cloud tops (<−50°C) associated with the deep convection, while radiosonde profiles indicated atmospheric instability and veering winds during its passage. Lightning observations confirmed energetic convective updrafts. The event highlights the impact of WDs in triggering severe and rare winter convective storms over northern India.

Source: Weather

DOI: 10.1002/wea.7653

Authors: Upal Saha, V. S. Prasad, S. Indira Rani, John P. George

Institutions: National Centre for Medium Range Weather Forecasting, Ministry of Earth Sciences

Language: English

Topic: Meteorological Phenomena and Simulations

Subfield: Atmospheric Science

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: bronze

Funders: Indian Space Research Organisation, Ministry of Earth Sciences, Indian Institute of Technology Madras, Space Applications Centre

OpenAlex ID: W4405294542

FWCI: 0.953

Cites: 22

Cited by: 5

Related to: 10