NOAA’s G-IV jet will fly twice today around Hurricane Matthew. The first flight is scheduled to take off at 1:30AM (0530 UTC) the second flight will take off twelve hours later at 1:30 PM (1730 UTC). These flights are based out of MacDill Air Force Base, Tampa, FL. These back to back flights help us understand how quickly the environment around Matthew changes. Below are the flight tracks. The dots on the tracks indicate the dropsonde launch locations.