Precursor: I did search for this and see other posts that are similar, but I can't get the threads to display.
I see how to change the altitude with the slider, but I don't understand how to read the changes. The timeline at the bottom displays, but the values don't change with the slider change. I don't understand what the other acronyms mean either (METROBLUE, NAM, etc...). Would one of you help me understand how to read the winds aloft?