Meteorologists are raising alarms as La Niña, a powerful climate phenomenon, threatens to bring colder-than-average winters to India in 2025–26.

• La Niña watch issued: US Climate Prediction Center predicts a 71% chance of La Niña between Oct–Dec 2025.

• IMD confirms signs: India Meteorological Department sees potential for colder winters, longer frost spells, and heavier Himalayan snowfall.

• How it works: La Niña occurs when Pacific Ocean surface temperatures drop, disrupting global weather systems and jet streams.

• Impact for India: Expect severe cold waves, extended frost affecting crops, heavier snowfall in Himalayas, and increased energy demand.

• Scientific evidence: Studies link La Niña to frequent, longer cold waves, making winters harsher than neutral or El Niño years.

• Expert advice: Even a weak La Niña can intensify icy winds and frost, so residents, farmers, and authorities are urged to prepare early.

This winter could be colder, longer, and more disruptive than recent years. From agriculture to daily life, the impacts may be widespread.