From one of the articles that Laura posted today:
So if this article is correct about what a key factor or part of the cause of the 3rd most rainfall ever in NYC is (and we have two months to go), which they content is increased moisture from a warm water wave in the Atlantic off the US, and that situation does not seem to have changed, then as we move into winter and possibly get one of those big polar vortexes dipping down into the Eastern US, then the Northeast US might get some really big snow storms with the combination of moisture and extreme cold coming together.
The city's rainfall tally thus far this year ranks third-highest. (...)
AccuWeather forecasters say a marine heat wave over a portion of the Atlantic Ocean, just off the United States coast between Delaware and eastern New England, led to an overabundance of moist air across portions of the mid-Atlantic and Northeast during the second half of the year and is likely a key factor in the severity and frequency of heavy rain events.
This current surge of warm water can be traced back to July 2020. It became warmer and progressively widespread during this past summer, according to Pastelok.
"This warm body of water has lasted through big storms this season and has not been ruffled," Pastelok said. He noted that had there been multiple storms moving south to north from the tropics during the past several months, then perhaps this area may have cooled.
"It may take several big nor’easters to really knock down these water temperatures," he said. Although AccuWeather's long-range team is forecasting the potential for a few big storms this year, which may lower sea-surface temperatures late this winter, there can be more warm surges at any time going forward, he added.
So if this article is correct about what a key factor or part of the cause of the 3rd most rainfall ever in NYC is (and we have two months to go), which they content is increased moisture from a warm water wave in the Atlantic off the US, and that situation does not seem to have changed, then as we move into winter and possibly get one of those big polar vortexes dipping down into the Eastern US, then the Northeast US might get some really big snow storms with the combination of moisture and extreme cold coming together.