Disaster Management
A catastrophic cloudburst in the Dharali region of Uttarkashi district triggered flash floods and landslides, resulting in the loss of at least four lives and destruction of homes. The event underscores the growing frequency of extreme weather incidents in the fragile Himalayan ecosystem.
A cloudburst, as defined by the IMD, involves rainfall exceeding 100 mm/hour over a small area of about 20–30 sq km. However, a 2023 study by IIT Jammu and the National Institute of Hydrology has refined this understanding, suggesting that rainfall intensity can reach up to 250 mm/hour over just 1 sq km, making cloudbursts one of the most intense and highly localized meteorological events.
These are typically linked to cumulonimbus cloud formations in mountainous areas. Orographic lift — where moist air is forced upwards by terrain — and convection currents cause rapid accumulation of moisture, which then collapses suddenly, releasing torrential rain in minutes.
This incident calls for improved localised weather forecasting systems, early warning dissemination, community awareness, and resilient infrastructure planning in eco-sensitive hill regions.
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