During a five day period from June 5th through the 9th in 2001, Tropical Storm Allison dumped a huge amount of rainfall on the Houston metropolitan area that caused widespread and tremendously damaging flooding. The Port of Houston recorded 37 inches of rainfall over that five day period. With damage estimates exceeding $5 billion, Allison remains the costliest weather event in Houston’s history.
However, as bad as Allison was, it’s hard to imagine that this Indian monsoon hit Bombay with 37 inches of rain in one day as “the rainfall descended in what looked like a solid wall of water.”