People got relief due to clear weather in the state for two days. On the other hand, the Meteorological Center has issued a yellow alert for dense fog in Haridwar and Udham Singh Nagar districts today (Tuesday). However, the weather will remain dry in other districts. Weather scientists say that fog in the plains can cause more trouble during the night due to cold. However, sunshine during the day will provide some relief from the cold. But difficulties may increase due to cold wave in the mountainous areas. If we look at the data, the maximum temperature of Doon on Monday was recorded at 21.1 degrees, one degree more than normal. While the minimum temperature at night was recorded at 9.7 degrees, three degrees more. While the maximum temperature of Pantnagar was recorded at 15.5 with a decrease of five degrees during the day and the minimum temperature was recorded at 13 degrees with an increase of eight degrees. Weather scientists say that such changes in temperature are being seen due to the changing pattern of weather.