Man that's a great squall line. Too bad it's going to dry out
Regional VWP data depicts 50 kt of west-southwesterly flow in
the lowest 3 km, which combined with strong/focused forcing for
ascent and pockets of conditionally unstable boundary-layer
conditions preceding the snow squall, should support its maintenance
with eastward extent. The primary limiting factor continues to be
somewhat dry low-level conditions, though it appears that the
aforementioned factors are generally compensating for this.