ISLAMABAD (APP) - The harvesting season is yet to approach and agriculturists are concerned that excessive rains across the country may harm wheat crop this year. The harvesting season usually starts in mid April but the continuous rains might delay the process and it is feared that more rains can cause wheat loss, Bilal Ahmad an agriculturist told APP. However, present rainspell has brought pleasant change in weather besides improving water level in Terbela and Mangla Dams that would be helpful to increase power generation. According to met office, scattered thunderstorm and rain is expected in Upper Punjab, Upper NWFP, Northern Areas and Kashmir during the next 24 hours. Director General, Pakistan Meteorological Department (PMD) Qamar-uz-Zaman Chaudhry told APP that westerly weather system brought scattered rains across the country during the last 48 hours. However, a fresh westerly wave is still affecting upper and central parts of the country and likely to persist during next 48 hours, he added. Scattered thunderstorm and rain may occur, intermittently, in Islamabad, Rawalpindi, Lahore, Gujranwala, Faisalabad and Sargodha divisions in Punjab and Malakand, Hazara, Peshawar, Kohat and DI Khan divisions in NWFP during next 24 hours. However, dry weather is expected in most parts of Sindh and Balochistan in next few days.