Srinagar, Dec. 18 -- The prolonged dry spell in Kashmir is likely to end as there is a possibility of a snowfall in the valley on December 21, the start of 'Chillai-Kalan' - the 40-day harshest winter period. The MeT official a Western disturbance is likely to impact Jammu and Kashmir during December 21-22 as the winter period marks its entry in the valley.Due to this weather system, there is a possibility of moderate to heavy snowfall in the higher reaches of Kashmir, and light to moderate rains or snowfall in the plains of the valley, he said.The snowfall would end the long dry spell in the Valley.The 40-day harshest winter period Chillai Kalan begins on December 21.During Chilai Kalan, chances of snowfall are highest and most frequent,...