The India Meteorological Department (IMD) has forecast dense fog conditions in Gangetic West Bengal and South Odisha today. Light rainfall and snowfall activity accompanied with a thunderstorm is expected over Sub-Himalayan West Bengal, Sikkim, Northeast Assam, Nagaland, Manipur, Mizoram, and Tripura during the next two days. A gradual rise in minimum temperature by 2-3 degrees Celsius is expected over Northwest, Central, and East India during the next three days.