for this hurricane there should have been ah plan for escape re; Houston needs to be evacuated on Monday before dark as much as feasible... Forcasters are not looking at the tidal flow from Tropical Storm Harvey as the threat it can be... As Harvey emerges back into the gulf the wind force will start pushing tidal flow back toward Galveston, Houston, and into Louisiana coastline... That tidal flow will NOT allow draining of current flood waters from Houston as fast as needed... Flood levee system around Houston is already pushed past design... It may only take 6 or more inches on any given levee part to trigger a failure... And any failure could trigger quick, unexpected water rise of 6 feet or more downstream fast... And any single failure could stress other levee areas downstream into a failure, and so on... Design isn't the problem for the drainage system... A massive amount of water that cannot be moved quick enough is the problem... Dicey is a minimal word to consider the scenario now as it has unfolded and how much more stress could be handled by the water control system around the Houston area... Harvey is a cat 6 mudslinger which may soon pull another revolver from the holster...LJ