Today's video shows how weather patterns will progress this week. The Canadian model is used here. It predicts much more rain from southeastern New York through eastern Pennsylvania late tonight into tomorrow evening than other models... but they all look wet to some degree.
After a warmup in the Middle Atlantic region and perhaps southern New England Friday and Saturday, it appears that another shot of unseasonably chilly air will take charge across the Northeast Sunday or Monday.
This map of the pressure pattern shows why chilly air is in and east of the Appalachians while areas downwind from the mountains from Tennessee to western New York are becoming milder.
As the high pressure area in the Northeast moves away, the the southwesterly flow pattern will shift eastward. This means Wednesday could be the hottest day of the week from D.C. to Boston. A cold front will follow.
This is a satellite picture showing rather tame conditions off the South Atlantic coast at 7:45 AM ET today. The area is being watched for any signs of storm development.
When looked at this way, you can see two distinct flows in the East: one from the south with moisture, and one from the west that is dry. There is a problem, however: the model solutions evolve over time, and as we get closer to next Monday afternoon (the time the forecast maps are using), the lines and orientations will probably change.
July is national blueberry month, but why not talk about other fruits or even vegetables? In the weather business, every month represents a time when we have to break through any salad bars to understanding the weather. Kumkwat may, we want your visits to the garden of AccuWeather.com to be fruitful.
This map shows the scenario of hot air spreading across the northern Plains and north of the Great Lakes, while a pocket of cool air aloft gets stranded over the Middle Atlantic region.
A cold front from the Midwest will reach the East Coast Wednesday. In the meantime, a large pocket of unseasonably cool air aloft will spread eastward. It will interact with the very warm and humid in place in the I-95 corridor to cause rounds of drenching showers and thunderstorms between today and Wednesday.