Several districts of Jharkhand, especially those in the western, southern and central parts of the state, are expected to experience unseasonal rain from Sunday.

Both IMD’s Ranchi and Patna Met centres issued bulletins on Wednesday forecasting rain in Jharkhand for three days from Sunday, December 13.

“Jharkhand will be under the influence of a western disturbance passing through northern parts of the country, leading to formation of a cyclonic circulation. This would help in formation of clouds and moisture incursion into the atmosphere,” said Abhishek Anand, deputy director of Ranchi Meteorological Centre.

He said the impact of the western disturbance would be felt from December 11, Thursday. "The minimum temperatures in several parts of Jharkhand would witness a rise from Thursday due to the effect of the western disturbance passing through north-west India," said Anand.

Ranchi Meteorological Centre predicted an increase in night temperatures by two to three degrees from Thursday.

Weathermen at IMD's Patna office said that as the disturbance was approaching from the western side, it would bring in moisture from the Arabian sea.

“The wind pattern over Jharkhand will change from north-westerly to easterly and this will subsequently result in a change in night temperature. The day reading is expected to witness a slight fall from Friday because of cloud cover,” explained a duty officer at the Patna Met Centre.

Meanwhile, several areas of Jharkhand, especially the Kolhan region, experienced early morning fog, resulting in poor visibility. But visibility improved as the day progressed.

The Met department also issued a fog alert in several pockets of Jharkhand in the next 24 hours.

Met statistics revealed that Ranchi recorded a minimum temperature of 12.1°C, two notches above normal, while Jamshedpur witnessed 12.6°C, a notch above normal. Daltonganj recorded 11.8°C, two degrees above normal.

In Bokaro, Hazaribagh, Dhanbad, Deoghar, Seraikela-Kharsawan and West Singhbhum, the minimum readings stayed one to two notches above normal on Wednesday.

Weathermen said the impact of the western disturbance and the associated cyclonic circulation was expected to stay till December 15 after which conducive weather conditions would prevail with the restoration of dry and crisp north-westerly winds.