Just to drive home the point, right after I typed the last comment, authorities ordered an evacuation of a county in Texas. This area is at risk because a levee has burst. This is near the Bravos River, but not in the urban area of Houston.
http://www.msn.com/en-us/news/us/levee-b...ocid=spartandhpThe point is this. The problem with the levee breaking Or overflowing) has already been known. Probably engineers probably knew about it yesterday or last night. So by the time the situation has gone critical, it's still several hours before they tell people to evacuate. And many people remain very confused about which roads are passable, and which roads are immersed in water.
Meanwhile, the news has released that CHP officer drowned in his car on Sunday in Houston ... while trying to explore high water (on roads) and find routes that were passable.
So in other words ... GET OUT EARLY.