|A microburst is descending in the rain shaft at right.|
The photo below shows the winds causing the rain shaft to spread to the north and south near the ground.
The radar shows a small cell to my west (I'm at the blue "bullseye").
The Doppler radar winds show the distinct pattern of the winds spreading out to the north and south (arrows) associated with a microburst.
I have annotated the second photo to show the wind flow in the microburst.