A long, narrow rain train continues to move out of West Virginia through parts of the Roanoke and New River valleys and southeastward at midday on this Friday. And when I say long … check out this clip off radar about noon, which shows a band no more than 30 miles wide extending from about Morgantown, W.Va. to the Roanoke/New River area and in a broken fashion into northern North Carolina. This band of rain has formed along the boundary between warmer, moister air to the west and southwest — that expected to help bring Saturday rain — and the edge of the cooler, drier wedge of air from high pressure to the northeast. There is still the expectation that this rain area will gradually disperse into scattered showers later today, but it hasn’t shown much sign of doing that just yet. In fact, it’s edged a little bit back to the west and south, such that some of the heavier rain that affected Roanoke earlier may ease into the Blacksburg/Christiansburg early this afternoon, IF current trends continue. Of course, if this rain train lingers into evening, lots of high school football games will be affected … at the least, many in the immediate Roanoke area are going to have some pretty soggy ground to contend with. Recent dry weather in the first 3 weeks of September is limiting any flood risk — though Greenbrier County, W.Va, is under a flash flood warning from being under this rain train for several hours.
There is still expected to be more rain on Saturday as a cold front pushes into soggy air … but it may or may not be more than today’s in the immediate Roanoke area, considering how long the rain train has already rumbled over ahead and may continue.