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Southwest Monsoon Arrives in Kerala Eight Days Early, Marking Earliest Onset Since 2009

The India Meteorological Department confirms early monsoon onset, with heavy rainfall alerts issued for Kerala, Karnataka, Goa, and Maharashtra as weather systems intensify.

Heavy showers lashed parts of the coastal state Goa on Friday
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Cyclone Shakthi May Be Brewing: Alerts Issued for Mumbai, Pune, Konkan as Heavy Rain Batters Maharashtra

Overview

  • The southwest monsoon officially arrived in Kerala on May 24, eight days ahead of its usual onset date of June 1, marking the earliest onset since 2009.
  • The India Meteorological Department (IMD) has issued red alerts for heavy to very heavy rainfall in Kerala, Karnataka, Goa, and coastal Maharashtra, urging residents to take precautions.
  • A depression over the Arabian Sea is moving inland across the Konkan coast, bringing downpours, while a low-pressure area is expected to form over the Bay of Bengal by May 27, potentially intensifying rainfall in eastern India.
  • Meteorologists emphasize that the early monsoon onset in Kerala does not guarantee early or uniform rainfall across the rest of the country.
  • IMD forecasts above-normal monsoon rainfall for 2025, projecting 105% of the long-period average, with no El Niño influence expected this season.