In looking at today's NOAA Surface Analysis issued 1645Z Sat Jan 11 2020, there are six Ls notated on the front stretching from above NY down to the Gulf.
I am trying to learn something here. Is there a reason / criteria for all of them? I would think from the Iso countour that yea, that is all low pressure. And in general, often I see on SLA the pressure system notated multiple times close to one another. Must be a reason.
Jonathan