The latest GFS has become available and QPF values are now similar to the NAM – about 0.85 inches water.
I’m inclined to stay with my earlier forecast—
[su_note note_color=”#ebf2d9″]With March sun angle, I’m still going with 4-7 inches of snow, measured on grassy surfaces, with higher part of that range more likely. (This means 7 inches.) This is for Philadelphia and immediate suburbs. [/su_note]
An additional 2 inches could be added to that range (meaning 6-9 in ) for far northwest suburbs.
Just measured 8” in towamencin at 4pm and right now it’s coming down fast. Had a 1/2” coating in 10-15 minutes on sidewalk where it was just cleared
I think you’re in what I consider far northwest suburbs. I may have overestimated the effects of the March sun insolation through clouds.
Upper air analysis shows dryer air moving in at 22000 feet. The snow intensity should begin to diminish in an hour or so
Thats good to hear, thank you. On radar the storm looks massive. Richmond to Boston and Pittsburgh out into the Atlantic with more coming westward.