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Informist, Tuesday, Jan. 6, 2026

MUMBAI – Heavy to very heavy rainfall is likely over parts of Tamil Nadu on Friday and Saturday under the influence of a depression which is likely to form in the next 24 hours over southwest Bay of Bengal, the India Meteorological Department said. The same weather system is also likely to cause heavy rainfall over parts of Kerala on Saturday, the department said.

Under the influence of an upper air cyclonic circulation over the equatorial Indian Ocean, a low pressure area formed over the southeast Bay of Bengal in the second half of Monday, which intensified further into a well-marked low pressure in the early hours of Tuesday, the weather bureau said. This is likely to move west-northwestwards and intensify into a depression in the next 24 hours, and then move further across the southwest Bay of Bengal in the same direction in the subsequent 48 hours, the bureau said.

The weather department has warned of dense to very dense fog during the night and early morning hours in parts of Punjab, Haryana, Chandigarh, and west Rajasthan from Wednesday to Friday, and in parts of Uttar Pradesh on Wednesday and Thursday. 

Dense fog conditions are also expected over most parts of northwest and northeast, and some parts of central and east India till Jan. 13, the weather department said. Visibility drops to 0–50 metres in "very dense fog" conditions, and between 51 and 200 metres in "dense fog" conditions. 

Cold day conditions are expected in some pickets of Uttarakhand, Punjab, Haryana, Chandigarh, Delhi, Bihar, and Uttar Pradesh till Wednesday, and over east Rajasthan, West Bengal, and Sikkim till Thursday, the weather bureau said. Cold wave conditions are likely over parts of Punjab, Haryana, Chandigarh, and Odisha from Wednesday to Friday, over Rajasthan from Thursday to Sunday, Madhya Pradesh on Wednesday and Thursday, and over Vidarbha, Jharkhand, and Chhattisgarh till Thursday, the bureau said.

A cold wave condition is when the minimum temperature drops to 10 degrees Celsius or less for plains and 0 degree Celsius or lower for hilly regions, according to the weather bureau. Cold day conditions are associated with a fall in maximum temperatures, typically occurring due to persistent low clouding. A cold day occurs when the maximum temperature during the day is at least 4.5 degrees Celsius below normal.

Minimum temperatures in Punjab, Haryana, Chandigarh, and Delhi are likely to fall gradually by 2–3 degrees Celsius in the next two days, the weather department said. In central India, no significant change in minimum temperature is likely in the next 24 hours, after which it could gradually rise by 2–3 degrees Celsius in the subsequent three days.

No significant change in minimum temperature is expected over east India in the next four days, and thereafter a slight rise by around 2 degrees Celsius is seen in the subsequent three days, the department said. In Maharashtra, no major change in minimum temperature is seen in the next 24 hours, after which it could gradually rise by 2–3 degrees Celsius in the subsequent three days.

In Gujarat, no major change in minimum temperature is likely in the next four days, and thereafter a slow rise by 2–3 degrees Celsius is seen, the weather department said. No significant change in minimum temperature is expected over the rest of the country, it said.  End

Reported by Shreya Shetty

Edited by Vandana Hingorani

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