Storm Approaching Central Indiana (Hubsan Zino Pro)

I flew my drone to get some footage of a storm approaching from the air.
I almost crashed it into the ground at the end. An outflow boundary from other storms passed while I was flying, which increased the barometric pressure and threw off the barometer. It automatically slows its descent when it gets near the ground, but this time it was still about 20 feet up when it slowed down. When I actually got close to the ground, it dropped suddenly, but I was able to stop the descent before it hit the ground.