August 27, 2017 1:34 pm ‘Unprecedented Flooding' Hammers Houston The National Weather Service says the floods hitting Houston, Texas, are unprecedented. See some of the flooding and hear from Houston Mayor Sylvester Turner on why he did not order mandatory evacuations. US & World Videos 2:42 Jennifer Lopez reveals how she came up with iconic one-liner in ‘Atlas' 2:42 Nina Dobrev hospitalized after bike accident 5:11 Lili Taylor crushed cowboy camp for ‘Outer Range' 5:59 James Arthur meets bride-to-be from viral concert proposal 1:23 Jennifer Lopez and Ben Affleck reunite amid split rumors