Of course, i think the item around 16N 75W looks more impressive than it is, but it's a mid-level feature... I know upper level lows only rarely develop into tropical features, but for a midlevel item... is it more common for the low pressure to 'drill down' to the surface?' I would imagine so, if for no other reason than it is closer to the surface than an ULL.
Maybe I'm crazy but it looks interesting... -Mark
-------------------- M. S. Earth and Atmospheric Sciences, Georgia Tech - May 2020
U. Arizona PhD Student