Here's that period honking again centered around the 17th give or take a day. This has been a consistent signal for about a week already and moving up in time. No can-kicking this one:
The snow(less) middle finger. Someone always falls under it in these situations where a weak low jumps off the coast and you fall in a subsidence zone between the weak primary as it jumps off the coast. Sucks to be in the bullseye of it but it is what it is. Not the greatest start to 12z for extreme SE PA:
Light snow arriving between 9PM and midnight Thursday. Continues overnight, maybe a heavier burst especially S and E of the Delaware River. 1-3" generally across SE PA. Maybe a stripe of 2-5" near the Delaware River across into S NJ.
Any time is tough to forecast LR....but Nina it is damn near impossible to be confident past 7 days wrt overall hemispheric longwave patterns let alone synoptics.
There are already some signals that the good pattern on the 16th rolls over on itself by the 20th and things deteriorate. Hopefully just a hiccup on the weeklies. Im in for the 17th give or take a day for the PNA spike and possible system. Pattern either holds on or flips after this. Fingers are crossed.
Maybe. Weak split out west with some waves undercutting the pna ridge. When you pump the PNA like that with a CPF extension the cold will be there in the East. A well-timed phase would work. But I wouldn't kick a clipper out of the sack either.
Been watching this period for a few days now. The ens have been popping a system underneath us during this period for several days now. Best mapped lr ens potential in a while. What do they say? The big ones get sniffed out early?
All models (except NAM tracks inland with rain SEPA) are snow in SE PA. Legit trackable event. Clearly a Miller B with lp redeveloping off of the DelMarVa and tracking ENE. Definitely not a Southern slider. Fast moving system will keep accums in-check. Doubtful anyone in our region sees totals like S NJ from yesterday. Im all-in.
Not with the surface wind vectors NNE as shown. Perfect spot and wind trajectory on that map. Speaking verbatim on the euro, not my call, but that look likely wouldn't be an issue 95 n and w.
Eta: 850 winds r actually NW.