If you look up at the 50/50, it's really a lobe of vorticity that is swinging down that's the culprit.
Reminds me of the VA SMD storm of 1/17 I believe that was headed for us but for a small lobe headed due south and shunted the storm from going past La Plata.
Even the 84 hr 18z NAM swings the vort intact into the coast like the 12z Euro.
That's right, I just used the 84hr NAM as confirmation. What are you going to do about it? Lol
Probably because Euro weeklies are AN precip for weeks 5 and 6 from Mid Atlantic thru NE with normal temps week 5 and slightly AN week 6.
Week 4 has normal precip with BN temps which Probably add to the totals.
Weeklies can-kicked any AN temps, and modestly so, to only week 6. Week 5 is now normal in the east.
Weeks 5 and 6 continue to be AN with precip along the east coast from the Mid Atlantic thru NE.
Confluence at day 6 is over progged 90% of the time it seems. I'll be surprised if it's that strong on models come the weekend. Plus, let's see what the Eps have to say.
They're coming out on Pivotal, but they follow the operational. Drops 1" thru 234 hrs. Lol
https://www.pivotalweather.com/model.php?m=gefsens&p=sn10_acc-mean-imp&rh=2024123112&fh=234&r=conus&dpdt=&mc=&pwplus=1