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 pattern through the weekend with the potential for tornadoes.
It's the start of severe weather season, and while the number of tornadoes is low, we may see an increase in the number.
Severe storms return to the Plains this week. Wednesday could be the big day with tornadoes into the Plains.
A severe weather pattern develops next week in the Plains. Storms possible in the mid-Atlantic.
Nasty weather coming to the Plains next week and beyond.
Snow for Minneapolis on north today into tonight. A severe weather pattern occurs next week.