 The White House visitors' logs, meanwhile, show a Parkinson's expert visited the White House eight times over an eight-month span between July and March of this year, and that includes one visit with the president's personal physician. Barrel is now a tropical storm setting its sights on the nation's fourth-largest city, Houston. Mayor John Whitmire. Shelter in place. We're in an emergency. We're in a rescue mode, life safety. We're literally getting calls across Houston right now.