The 18z AIGFS has completely abandoned its amped solution - almost a pure slider now w/ even a secondary wave of over-running right behind it. And right behind that...a clipper.
Not a major cutter. Significant changes w/ surface pressure anomalies. Much colder run, and less punch through middle TN. TRI doesn't even get above freezing during the event. 6-10 degrees colder over much of E TN. Major move.
Maybe we better start looking at the QPF trends? I have to think a 1040+ hp sitting to the north of this is a big problem, especially since it is well west of the Apps into the Midwest or plains.
What is crazy is the UKMET trended strongly towards the slider camp. The GEM trended strongly towards the AIFS camp. They almost swapped spots. The AIGFS trended strongly towards the slider camp.