In June 2001, what caused Houston experiencing the worst flooding in its history?

Now Hurricane Harvey has beaten all the numbers on flooding from all storms in Houston's history.

I went through hurricane Alicia in '86 on the Texas gulf coast. 120mph winds...devastating.

hurricane Harvey caused the worst flooding in Houston history dumping over 50 inches of rain!! Not tropical storm Allison

Player #1104482, dumping over 50 inches of rain in August 2017

Longarms, it says on that date but yes it was tropical storm Harvey that hit us, hurricane Harvey went down I10

Texans keep electing money grubbers and the poor suffer the consequences. February 2021 brought heavy snow and freezing temps. The power grid failed and people froze to death--animals, too.

Allison was worse because Houston made some improvements that helped in Harvey .... but Harvey dumped more rain. Both were devastating.

easy answer as our house was flooded by both Frances and Allison

Gary, Me too in Houston and my sister lived in Freeport.

Harvey said "hold my beer"

Gary, Hurricane Alicia was in 83

I live in Houston, but was out of the country the summer Allison hit. My parents sent me pictures of the flooding. When I showed my co-workers one of the pictures, they asked me the name of the river in the picture. I had to tell them that it wasn't a river, it was a freeway. Unfortunately, I was around for Harvey. Those were some very scary days.