The wind strength normally increases by a factor of 2 per 1000 feet up to the 850 hPa level.

The wind normally backs during climb out through the first 2000-3000 feet in the northern hemisphere.

The wind strength normally increases by a factor of 2 per 500 feet up to the 700 hPa level.

The wind normally veers during climb out through the first 2000-3000 feet in the northern hemisphere.