First look at the 6Zs.
ICON-D2 6Z looks a bit further south to me on the 0Z. Rapid thaw line seems to be about 50 miles further SW.
I say 'rapid thaw line' rather than rain/snow because its easier to see. The rain/snow line on some models is the same as the rapid thaw line (where temps and dews rise rapidly) but some models have a zone of incongruence where the surface is still cold (no rapid thaw) but snow is not falling due to a thin warm layer. There is a risk of ice pellets or freezing rain in this zone.
I should add there is very little difference between the 6Z and the 3Z (both are an improvement on the 0Z). Maybe the 6Z is 2-5 miles further north (yes its literally a pixel or two further north) but the air is also colder on the northern side so its not really a downgrade.
Originally Posted by: Quantum