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Monsoon Trough Shift Triggers Downpours and Flood Alerts Across Northwest India

A cyclonic circulation off the Bengal coast is sustaining heavy rainfall ahead of a mid-August Bay of Bengal low-pressure system forecast to deepen showers across the region.

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Overview

  • The monsoon trough’s return to its normal position has unleashed heavy rain across northwest India, prompting yellow and orange alerts as waterlogging and traffic paralysis disrupt Delhi, Bengaluru and Hyderabad.
  • The IMD forecasts isolated heavy to very heavy rainfall in Uttarakhand and Himachal Pradesh over the next week, with orange warnings in place from August 11 to 14.
  • A cyclonic circulation over the coasts of Bangladesh and West Bengal will sustain heavy showers in North and South Bengal through August 13 under district-level alerts.
  • A low-pressure area expected to form in the Bay of Bengal around August 13–14 may deepen rainfall over South Bengal and Telangana from mid-August.
  • Flash floods and landslides in Himachal Pradesh have claimed over 112 lives, inflicted nearly ₹1,988 crore in damage and closed around 360 roads this monsoon.