Those were just downdrafts and microbursts.

Half hour in, they hit a downdraft...

Four-point-three liter, 30 horsepower, six-cylinder engine, with Stromberg downdraft carburetor.

We must have fired the probe into the tornado and it caught a downdraft.

Departure, this is SouthJet 227. We're experiencing some rough air, encountering some severe downdrafts. We're in our climb now.

Departure, this is SouthJet 2-2-7, we're experiencing some rough air, encountering some severe downdrafts. We’re in our climb now.