ISLAMABAD - Pakistan Meteorological Department (PMD) Thursday predicted more rain thundershower in upper/central Punjab, Islamabad, Khyber Pakhtunkhwa, north and eastern Balochistan, Kashmir and Gilgit-Baltistan during the next 24 hours. Isolated heavy falls are likely in Kashmir, upper Punjab, Islamabad, upper Khyber Pakhtunkhwa and northeastern Balochistan. The met office has warned that heavy rains may generate urban flooding and flash flooding in local Nullahs of Islamabad, Rawalpindi, Lahore, Gujranwala, Sialkot, Mansehra, Abbottabad, Haripur, Dir, Swat, Peshawar, Mardan, Malakand, Bajur, Lakki Marwat, Bannu, Tank, Khuzdar, Zhob, Barkhan, Kohlu, Musa Khel, Sherani, Sibbi and Bolan during the period.