Dharamshala, Sept. 25 -- With a change in weather conditions in Himachal Pradesh, the India Meteorological Department (IMD), Shimla, has forecast spells of heavy rainfall in parts of the hill state over the next few days. The weather office has issued a yellow alert for heavy rainfall in Sirmaur district for September 26, followed by an orange alert for heavy to very heavy rainfall in the district on September 27. A yellow alert for heavy rainfall has also been issued for Mandi, Shimla and Solan districts on September 27. A yellow alert for heavy rainfall has been issued for Shimla, Solan and Sirmaur districts on September 28. While rainfall is expected in the plains and middle hills of the state on September 25, showers are likely across the state from September 26 to 30. Besides, a yellow alert of thunderstorms, lightning and gusty winds has been issued for several districts from September 26 to 28....