I got stuck in only what I could estimate was a 35mph wind at about 500' yesterday when RTH. It literally wasn't moving forward. I kept it at full throttle and started descending. At about 450 feet, it started to move forward and at 400 it was coming back at 10mph. I continued to descend and got it to a max of 15mph, which got me back without an issue. Just goes to show how ground wind speed can be very deceptive.