It's funny you mention this because I've been thinking about this and I wonder if my thinking was incorrect. I thought that EML's did originate aloft like at the 10,000' to 18,000' level (but then again isn't that like the surface for the source regions of EML's?)
Anyways...so we could see an EML plume that's like from 700-600mb but the 700-500mb lapse rate alone may not properly portray that?