This image was captured off the last frame of the video. Notice the two arrowed segments of the smoke trail. The rocket boost was vertical, leaving behind a perfectly straight smoke trail. Yet, within seconds, the two arrowed segments began drifting apart in opposite directions, indicating a wind direction change of almost 180 degrees. At around 3000 feet, the wind was clearly blowing from the east. Just over 1 second later, at around 4000 feet, the wind was blowing from the west. About 2 seconds later, at around 6000 feet, the wind again appears to be near calm.