Via WGN-TV, the fourth-largest city in the U.S. has received more rain in the last week than Chicago receives in an average year.
Chicago's average annual precipitation is 910 mm. Since last Friday, Houston has gotten 1,070 mm. The wettest year in Houston history (1900) dumped 1,851 mm on it. So far this year, with 4 months left to go, Houston has gotten 1,798 mm. Of course, the odds are pretty good that the city will get another 53 mm of rain before December 31st.
We have no idea how bad the damage is yet. The entire Houston Chronicle website is about the flood. At least the rain has stopped for now—but officials worry about additional reservoir overflows and levee breaks.
We're just beginning to understand the magnitude of this disaster. And with key Federal posts, including FEMA Director, yet to be filled, President Trump is so out of his depth one can only hope that state and local governments can help.