Himachal Pradesh reeled under severe cold wave after heavy snowfall and rain over the last four days, causing a sharp fall in temperatures across the state. Many areas of the state are still without electricity and water supply for the fourth day on Tuesday. The key tourist resort of Manali shivered with minimum temperature plummeting by six degrees to settle at minus 7 degree Celsius while the state capital Shimla and Solan recorded a low of minus 2.1 degree Celsius and minus 2.5 degree Celsius respectively, which is 4.5 degrees below normal.The region had some respite from rain and snow today after four days but pale sun failed to warm up the region. People in Shimla woke up to a bright morning but thick clouds overcast the sky in the afternoon and day temperature remained low. Vehicular traffic remained suspended in upper Shimla region for the second day today and several tourist resorts including Kufri, Narkanda, Sarahan, Sangla remained inaccessible. The upper Shimla areas and kinnaur remained cut off from the state capital while vehicular traffic was badly affected due to slippery road conditions.The winter carnival at Manali also suffered due to snow and intense cold, as people preferred to stay indoors. Kullu-Manali road also remained closed due to snow. All natural sources of water in high mountains like lakes, springs, rivulets and a 70km stretch of Chandrabhaga river were frozen, causing sharp fall in water supply in the Snowfed Sutlej, Ravi and Beas rivers, affecting power generation.