@William-Caine Drift Hunters said in Winds:

I am trying to understand the the elevation of winds. I do not know what exactly to type into a browser to find this knowledge. Can someone help explain what the designations me, that is, such s “FL140”. What elevations can be applied to these?

FL140 refers to 14,000 feet elevation as a standard pressure altitude, which provides an altitude frame of reference for aircraft at higher cruising elevations rather than variable radar altitudes.