Notice the NAO is going negative next week; in fact, we have been in a negative NAO most of the summer. Some studies have shown that a negative NAO during the summer means heat in the Northeast, while a negative NAO in the winter means colder, stormy weather. So one can surmise that as the jet starts to migrate south in September that a negative NAO would mean stormy weather for the Northeast which looks to be the case next week.
The system coming out of Texas and the Gulf Coast will bring a lot of rain north late in the weekend and early next week. You can see on the GFS model total rainfall that some areas can pick up 1-3 inches of rain which may cause some minor flooding problems.
Also, the pattern across the Great Lakes and Northeast will feature several pushes of chilly air the next 14 days. I would not be surprise to see snowflakes over the Upper Peninsula of Michigan in the cold pushes.
A storm will bring another swath of moderate to heavy snow from Missouri to New England.
Snow today for areas of VA to NJ....Another storm this weekend could hit the Northeast hard.
Another snow event is on the way. The weekend storm looks like a big one for snow.
A widespread snow and ice event today into Monday. More on the way later this week.
Heavy snow and even thundersnow coming Northeast tonight. More ice and snow Sunday.
Damaging ice storm on the way for the lower Mississippi Valley. Another storm will bring more snow and ice problems this weekend.