Lt. Cmdr. Robert Mackenzie, an MH-60T Jayhawk helicopter pilot at Coast Guard Sector San Diego, readies the cockpit of a Jayhawk at Sector San Diego prior to deploying in support of the Hurricane Harvey response efforts on August 25, 2017. Hurricane Harvey is expected to make landfall in Texas as a category 3 hurricane. (U.S. Coast Guard photo by Petty Officer 3rd Class Joel Guzman/released).