From Friday morning, fog dominated across the state, and Kolkata was no exception. The chill in the air signaled the onset of winter. According to the meteorological department, this weather pattern is expected to persist for the next four to five days, with minimum temperatures remaining 2–4 degrees Celsius below normal. Over the next 24 hours, cold wave conditions will continue in four districts of South Bengal: Purulia, East and West Burdwan, and Birbhum. On Saturday and Sunday, a cold wave alert has been issued for five districts: Bankura, Purulia, East and West Burdwan, and Birbhum. Kolkata's temperature is expected to stay below 15 degrees Celsius, with chilly spells continuing across districts until Sunday. There’s no chance of rain