LUCKNOW, Jan. 12 -- Shivering nights are set to intensify across western Uttar Pradesh as the mercury plunges below 4 degrees Celsius, the weather department said on Monday, issuing warnings of cold wave conditions and frost over the next two days.

After the passage of a western disturbance, winds have turned northwesterly, leading to a fall of 1 to 3 degrees Celsius in both maximum and minimum temperatures across most parts of the state during the past 24 hours, barring some areas in eastern Uttar Pradesh.

Minimum temperatures in several parts of western UP have dipped below 4 degrees Celsius, resulting in cold wave conditions. These conditions are likely to continue for the next 48 hours, with cold wave and frost possible in isolated ...