Wind scale

With spring around the corner, we are bound to be subject to windy conditions. Having spent many years riding in the midwest, I've become acquainted with riding in windy conditions. I use a 5-point scale similar to tornadoes.

1. Imperceptible. Flags hang limp. Trees and other vegetation not moving.
2. Perceptible wind but not strong enough to make your bike ride better or worse.
3. A good stiff breeze. Enough wind to be annoying but does not compromise handling.
4. Wind strong enough to move the bike around a little but not dangerous. Very annoying.
5. The Hand of God. Control of bike compromised. Risk of being blown over or into traffic without time to react.