National Disaster Management authority has issued advisory in view of another spell of rains beginning from today.Another westerly wave is entering Pakistan from today and is likely to grip most parts of the country till 22nd of this month.The Authority has advised the tourists to remain cautious during the spell and check weather updates before travelling.It also warned of flash flooding in local nullahs, streams and river tributaries.Provincial disaster management authorities and other relevant departments have been directed to undertake measures as per respective mandates.Source: Radio Pakistan