Pix of Pakistan flooding here.
Here's a map via BBC I've seen in several places (what an elegant palette...):
At first glance I thought that was flooding in meters, but no, it is flooding in million cubic feet per second. This is about double the normal outflow of the Mississippi, according to Wikipedia, or about 12 times the flow of the Rhine, or for Westerners, about 4000 times the normal discharge of the Rio Grande. More to the point, it is about four times the normal discharge of the Indus river itself.
The population of Pakistan is over 130 million. Some estimates are saying that 12,000,000 people, or almost 10%, are directly affected by the flooding. This is more than the entire population of Belgium, Sweden or Greece. Or Ohio, or Ontario, or Washington and Oregon combined.