Close, but slightly backward. The saturation temperature (dewpoint) is lower at lower pressures. So the lower pressure air reduces the saturation point. The air

Close, but slightly backward. The saturation temperature (dewpoint) is lower at lower pressures. So the lower pressure air reduces the saturation point. The air is not being cooled by the wings. If the sat. point is close to the current air temperature, water vapor will condense. Similar phenomenon to boiling water at high elevations. Walking up the mountain isn't heating the water, but the boiling point drops as air pressure drops.