Thursday 8 a.m.
Showers and some thunderstorms reached Delaware, southeastern Pennsylvania and southern New Jersey early this morning and could reach Boston by the end of the day. With additional moisture feeding into this system from the south, we can expect some of the rain to cause flash flooding on streets and highways, as well as other places that do not drain well.
Dry air is likely to seep into the DC to NYC corridor to make tomorrow a nice day. However, another front from the northwest could being more showers to the same areas for part of Saturday and Saturday night. If that timing proves to be right, Sunday would feature the return of sunshine with low humidity.
No heat waves are likely in the Middle or North Atlantic states in early August, but we cannot promise the heat never comes back. An extreme example of a reversal affected the middle of Pennsylvania in 1918. At State College, the low on Aug. 1 was 45, then the high on Aug. 5 was 99! Here is the morning video.
In late July, before-and-after pictures taken from an Arctic webcam were posted on the internet and some people claimed it proved global warming was accelerating. This article, written by AccuWeather.com Staff Writer Jillian MacMath, shows there is more to the story. You can read it now!
The map below shows areas with showers and thunderstorms at 9 a.m. EDT. You can see the rain from Maryland to southeastern New York, as well as a band of showers farther west.
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Rainy from DC to NYC today