Last one I can recall was March 2013. Not sure if it’s as strong and mid levels were cooler then, but it helped us drop below freezing during the first part of it. Wish I could see levels from 900mb and below on euro.
Regardless of where the freezing line is, this should have a good drain as the pressure gradient won’t assure a rotting airmass being a victim of latent heat release.
Should be a stout NE flow.