wind in high places
飂 centers on wind blowing in high, exposed places, such as mountain peaks or open heights.
飂 combines 風 (wind) with 翏, which likely contributes the sound and may relate to high or soaring movement. The exact historical development is uncertain.
The wind radical 風 wraps around 翏, which looks like feathers or wings high up. Picture wind whistling through feathers on a high mountain peak.
For リュウ, imagine a strong wind blowing through a high mountain pass, making a long, drawn-out 'ryuuuu' sound: リュウ.