Sunday Afternoon 3/9 After a quiet but chilly day Today, we turn our attention to a weak clipper that will come through here on Monday Night. The modeling is not very impressed with this system, most of them do not even create a surface reflection with the upper level short wave. However, it does have a nice little vorticity maximum associated with it and it will pass South of us. One of my old forecasting rules states: If the vort max passes South, then you have a chance for precip. If it goes North, then probably not. This one will go through Northern VA. It does have a few other things going for it, if you're cheering for us to get a little snow. All of the thickness parameters are cold enough for snow and it looks like it will come in after sunset on Monday Night. If it came in during the day, I don't think it could fight the high March sun angle. So, bottom line is: We have a chance for some light snow on Monday Night. :)  ¶ 10:53 AM