Shimla/ Rajouri, Feb 03 (ANI): Meteorological Department (MeT) of Himachal Pradesh issued warning of heavy snowfall in the higher reaches of the state. The cold wave has gripped the entire state with the temperatures in higher alters reaching sub zero level. The director of weather department of Himachal Pradesh, Manmohan Singh said the state will receive heavy spell of snow. He added the day temperature will improve only after Tuesday but nights would continue to remain cold with mercury dipping further. Shimla, Kinnaur, Kullu, Manali, Chamba and Sirmaur regions of the state received snowfall on Monday. Meanwhile, the lowest temperature recorded at Keylong was minus 7.5 degree Celsius. The snowfall in northern states has brought cheers to the tourists but has added to the plight of passengers travelling on those routes with snow blocking many roads. In Rajouri district, people were seen clearing snow off the roads. Bulldozers were also put in use to make the way.