Wednesday 9 a.m.
The title might suggest that I am predicting a snowstorm. I am not, and there are not any that would classify as likely coming any time soon. However, since Christmas is less than three weeks away, we can always speculate. This video includes some of the possibilities suggested by the European and U.S. models during the next couple of weeks and one map showing a forecast for Christmas Eve. One prediction I will make is all of those specific forecasts are likely to change multiple times before the real weather unfolds.
Among all the maps in the series of forecasts from last night's operational run of the GFS model, this setup for two weeks from tonight looks the most interesting from Northeast snowfall standpoint. It is way too early to have any confidence about something like this:
This GFS map for next Friday night (14th) has a storm passing south of the Northeast region.
The Euro has that system looking like a rain producer in the I95 corridor:
Now, suppose we split the difference. Then, then... we could do this all day!
After reaching the 80s today from NYC to Boston, it might not be that warm again through much of next week.
A noticeable push of cooler air will spread southward from Ontario and Quebec into the eastern Great Lakes and New England between tomorrow and Saturday.
A cold front from eastern Canada will slide southward along the East coast between late Friday and the end of the weekend. For the area from Philadelphia to Boston, where temperatures will reach the summery 80s each day through Friday, it will mean a noticeable change to cooler weather.
Average high temperatures in Chicago and New York City are in the mid-70s now, but for the next several days, temperatures will run 8-15 degrees above those long-term averages. Supporting this warmth is a flow aloft that originates over the Southwest:
Rain was common in the Northeast this morning, though Boston was still waiting as of 9 a.m. Their summer dry spell has continued.
There will be an increase in warmth and humidity in the Northeast that will not be reversed until the next cold front arrives.