HOUSTON — Incredible rains marked the night of August 26th, 2017 and it got worst as the predawn hours of the 27th approached. Three distinct bands of rain pushed through with each essentially stalling over the city for hours on end, dropping 10"-15" per band. The first shut down roads in the usual low-spots. The second band shut down the freeways and sent creeks over the banks. The third band flooded entire neighborhoods as bayous overflowed. The Addicks Reservoir was strained to the point where they opened it up, inundating even high ground not even listed as, "flood plain." By the end most spots saw between 35"-45" of rain with some spots like Mary's Creek in Friendswood topping out at 56". Beaumont saw over 60". Some estimate that half a million cars were lost in the storm.
While there's validation in knowing we lived through the worst in history, it's also a reminder that crippling rains like that can happen again. Consequently, the second heaviest multi-day rain event ALSO happened in Texas, back in 1978. Tropical Storm Amelia dumped 4 feet of rain across the Hill County. A year later, Tropical Storm Claudette dumped a record-breaking 42" in Alvin, TX in one day which represents a record for highest rainfall in 24hrs.
It snows in Alaska and it rains in Houston. We can only hope it doesn't happen again. But, we know flooding rain will come again. It may not be as bad as Harvey, or it might be worse. We can only prepare. -Meteorologist Brooks Garner