What do 20 feet of wind look like? (Mike the Strike ... ?)

2NO

How about the wind speed at 20 feet above the surface of the earth?
Wind speed increases rapidly with height in the bottom layer of the
atmosphere and is usually measured at 30 feet. I assume firefighters
are more interested in wind speeds at tree canopy height? maybe a
firefighter can verify this?

Hopefully you won't be flying that low in Arizona!

Mike