Final preparations made for landfall Friday morning, as winds rise and window for evacuation quickly closes

Hurricane Harvey is now a Category 4 with sustained winds of 130mph and a storm surge of up to 13 feet

Flooding predicted up to 100 miles inland, with 'devastating' floods predicted for coastal cities and towns  

Officials urge anyone who has not evacuated to get out now, predicting 'immense human suffering'

All flights out of Corpus Christi airport cancelled for the remainder of the day on Friday morning  

Harvey is predicted to become the strongest hurricane to hit the US since devastating Katrina in 2005

Those who haven't evacuated  are asked to write their names on their arms so their bodies can be identified

Looming disaster in Texas could prove a major new test for President Trump's administration