It's John Manetta, A.K.A. John M. or JM;
Our current situation is due to transient blocking from our last system, -EPO/+PNA, NE winds, vertical velocity/omega at the right levels, long forecast pressure falls near the VA capes. Now all of this lift will lead to subsidence for other areas, so if you are a snow lover, don't panic if you get a little break. I still like my forecast of 3-5" 1.5-3.5" for the PHL airport, (really across the river in NJ but whatever haha)
The thing is, with enough VV/omega in the right areas and low pressure there long enough I may have only my second Winter forecast bust in ~5 years. Now yeah it'll only be by a couple of inches, but thats a bust, we'll see, I like my forecast and am not changing it. I know that some areas will go to the 6" range, so that an inch off but it's off, whatever, if I bust low on a snow event at the end onf March I am about even on weather pride and weather love, haha.
The pressures are currently falling at the VA capes, of course, and our low is forming, which will bring all of the drier air in back from the NW as it strengthens, so for the Delaware Valley, the next few hours are everything. I STILL LIKE MY FORECAST FROM A LONG TIME AGO and heres why, VV/omega induced subsidence in other areas, NW drying out later as the low pulls off....AND accumulations on grass are nice but don't count, the snowboard accums count. I'm liking it so far.
I know there are no graphics, but the point is, the two biggest storms in March, By the way, I have an archived period of interest of 3/1-3/17 BAM....that is weatherpride not conceit, if some take it that way, I apologize, but that's just me and has been for many years.
Thanks for reading,