Was speaking with @wxmvpete last night about NBM beyond D3 for rainfall, it tends to run too low for a couple of reasons (CAMS not in range yet, resolution issues). I wonder if some of this holds true in the winter?
No. I worked for Montgomery County, but lived in York County, PA. We worked the event and were surprised at the disparity of the snow reports. Damascus reported M21.5", but Takoma Park had M12".