Tuesday 9 a.m.
This video shows how the various weather features should behave this week. In the Northeast, today is mild, but the rest of the week will be noticeably chillier. Downwind from the Great Lakes and into the Appalachians, chilly showers will affect lowlands while the first snow showers of the season cover the highest elevations.
This pressure map shows the northwesterly flow now affecting the Great Lakes. You can also see the leading edge of the change to chill (the cold front) approaching the I-95 corridor. A low pressure area near the west edge of the map will move to the Virginia/Maryland coastline tomorrow morning, then move northeast.
Here's today' edition of the show I do with Evan Myers on most weekdays:
Early this morning, the most concentrated rain was falling in a band from Maryland to southern Michigan.
With a high pressure area over Maine, a low pressure area over western Indiana and an upper-air storm spinning over the western Great Lakes, the stage is set for wet weather in the Middle and North Atlantic states.
This map is a rainfall forecast from the NWS Middle Atlantic River Forecast Center located in State College, PA.
The upper-air flow forecast for this evening shows the trough that helps to support rainfall ahead of the cold front.
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.