He is not scheduled to visit Houston
President Trump and his wife have arrived in Texas to give the moral support for those impacted in that area. The Corpus Christi area took more of the brunt of the winds wrath, but the flooding is not as great. He will not be going to Houston as conditions are not easily accessible and the President wanted the focus to be on the rescue operations. When you think of the logistics of a Presidential visit, it is best to keep the resources focused on the people. Good choice.