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.
The snowstorm will dump heavy snow today into Tuesday, but the warmth is on the way for later this week.
It's going to be a stormy period across the country, but the models seem to differ on the outcome.
The storm that is coming into the Plains will produce a wide range of weather including snow, ice and flooding rains.
The holiday time will be stormy in the Plains and Front Range of the Rockies. Travel will be impacted by the weather.
A swath of moderate to heavy snow to move from the Midwest through the Great Lakes.