I’m away but still looking at the weather in Philadelphia.
I really think PHL will miss much of the heavy snowfall. The GFS has much of the coastal storm development further east and north , so 4-7 inches looks more likely for our area. (The NAM has higher amounts, but it has been overstating preciptation amounts all winter.)
Sorry I’ve been unable to update this weather blog this week. Away on vacation!
But looking at the forecast maps, a very active storm pattern is developing, with a sharp upper air trough that becomes negatively tilted early in the week, allowing phasing of energy and allowing a deep coastal low to form off of the Delmarva coast. Likely to bring heavy snow to NJ and possibly Philadelphia Monday through Tuesday.
I’ll have to leave this one to the TV weather people. My regular blog followers know I’m not keen on the TV forecasters, but Adam Joseph on 6-ABC seems to have the best balance, honesty, and knowledge.
Big differences today between the GFS model and the NAM model. The latest NAM cranks out 3-5 inches of snow for PHL.
The GFS has cranked out much less snow in the afternoon run, just a coating.
UPDATE: tonight’s GFS has 1-2 inches of snow for PHL.
This clipper could surprise in either direction, most likely in the lower accumulation range. Both models start the snow after 1PM and taper to flurries about 7 PM.