Tropical Storm Harvey’s impact on Texas has been catastrophic, but the city of Houston is faring worse than some others. Here's the science of why Harvey has been especially devastating for the area. Photo: NASAThough the rain has subsided in Houston, parts of the metro area got more than 49 inches of rain from Tropical Storm Harvey. So why was the storm so devastating? The storm lingered over Houston for days, dumping more than 15 trillion gallons of rain on the city.

Source: Wall Street Journal August 30, 2017 20:07 UTC