There may be a few more snow showers today as some direct impact from the departing complex storm system that delivered our region’s biggest widespread spring snow in 10 years lingers. We will slowly be shifting into a weather regime more dominated by upslope northwesterly flow over the mountains and periodic upper-air disturbances caught in that flow through at least Wednesday. That will translate into lots of snow squalls in the typical snow belt areas — eastern West Virginia’s montains especially, west of Interstate 77 in Virginia, and the ridges along the Virginia-West Virginia border farther north — with snow showers periodically blowing into the New River and Roanoke valleys. Some high-elevation areas in West Virginia may pile up a foot or more in the lingering upslope event. High temperatures through Wednesday are going to remain 15-25 degrees below normal, in the 30s to maybe some low-mid 40s in the Roanoke Valley and locations south and east. There will start being some periodic sunshine, maybe this afternoon but more so Tuesday and Wednesday, which will do its number on the snowpack, but still at a slower rater than we would typically expect for a late March snowfall.
A gradual warming — uh, let’s say “moderating” — trend late in the week may grudgingly nudge temperatures back toward normals, with highs in the upper half of the 50s and lows in the 30s. But the blocking pattern of high pressure in the far northern latitudes that has brought us the unusual early spring is only slowly going to lose its grip, and there may yet be reinforcements of the cold air that continue into early April.