CAUSES FOR THE FLOOD IN PAKISTAN..

Current flooding is blamed on unprecedented monsoon rain. The rainfall anomaly map published by NASA shows unusually intense monsoon rains attributed to La Niña. On 21 june, the Pakistan Meteorological Department cautioned that urban and flash flooding could occur from July to September in the north parts of the country. The same department recorded above-average rainfall in the months of July and Aug 2010, and monitored the flood wave progression . Some of the discharge levels recorded are comparable to those seen during the floods of 1988, 1995, and 1997 .

An article in the New Scientist attributed the cause of the exceptional rainfall to "freezing" of the jet stream, a phenomenon that reportedly also caused an unprecedented heat wave and wild fires in Russia as well as the  2007 United Kingdom Floods.