Looking into October
After our potential coastal storm to end September , I for see a brief but overall warmer pattern taking hold.
Blocking looks to ease up in the North Atlantic and the NAO appears to come from deeply negative to neutral/slightly positive as we head into the first week of October.
This will lead to less in the way of powerful troughs like we have been seeing and more in the way of a zonal flow over the NE US, and temperatures look to average slightly above normal say from October 3rd through the second week in October.
We see above that by October 3rd, blocking will ease and the negative PDO will try to influence our weather with a trough trying to drop into the west and a bit of a ridge trying to develop in the east. I do not see any monstrous ridge in the east with hot weather conditions but I see a zonal flow with mild pacific air influencing our temperatures
Basically what I see is a break in the pattern that we have been in ( cool east/warm west alignment). This is very typical , for patterns to break down briefly just to refire 2 weeks later.
So what I see is overall a fairly warm start to the month of October (besides the 1st and 2nd) through the first 2 weeks of the month, again not anything too hot but slightly above average.
By the 2nd half of the month, probably the 2nd or 3rd week (between the 14th-20th), I believe blocking will return, and I see our pattern refiring, with a ridge in the eastern Pacific moving east into the western US, and a very powerful cold front sometime around mid month or so , which will drop south-east out of Canada, lead to colder fall weather taking over again and mark the beginning of the overall pattern taking over and a trough in the east , ridge in the west alignment.