Pretty much...general area of lat/lon, 50N/50W, that you'd want a large closed low at 500-mb (maybe a bit farther west than 50W, but 50/50 sounds better!). Classic location to get confluent flow over the northeast US, which funnels cold air down, and keeps a large, cold high in place (a'la cold air damming along the Appalachians). This effectively blocks any approaching surface low from "cutting" off to our west and northwest, and enables coastal low formation. Without some kind of 50/50, even a cold, strong high will just drift off to the east or northeast, a strong enough low will cut, and we'd end up with mostly rain or all rain.