Met Office informed that a westerly wave is likely to enter upper parts of the country on Sunday. Under the influence of this weather system:

• Rain-wind-thunderstorm (isolated heavy falls) with light snowfall over high mountains are expected in Chitral, Dir, Swat, Malakand, Kohistan, Shangla, Buner, Mansehra, Abbottabad, Gilgit Baltistan and Kashmir from Sunday(evening/night) to Tuesday.
• Rain-wind-thunderstorm is expected in Haripur, Swabi, Mardan, Nowshera, Peshawar, Charsadda, Bajaur, Kurram, Kohat, Mianwali, Khushab, Sargodha, Islamabad, Rawalpindi, Attock, Chakwal, Jhelum, Mandi Bahauddin, Hafizabad, Gujranwala, Gujrat, Sialkot, Narowal and Lahore from Sunday (evening/night) and Monday.
• Wind-thunderstorm are also expected in Central and South Punjab during Sunday (evening/night) and Monday.

Possible Impacts:

• Weather conditions are likely to transit from Summer to Autumn in upper parts.
• Day temperatures would be mild in upper parts of the country, while night temperatures are expected to fall gradually in coming days.
• Windstorm may cause damages to vulnerable structures in Upper/Central parts of the country.

NOTE: All concerned authorities are particularly advised to remain 'ALERT' during the forecast period.