Friday 10 a.m.
Gangnam Style was a big deal musically and choreographically during the fall and early winter. For a much briefer period, springnam style will be the theme for the temperatures this weekend in the Northeast.
Much milder air will be heading into the Northeast this weekend. On Sunday, temperatures are likely to be in the 50s in Boston and 60s in Philadelphia. Chicago has temperatures in the 50s today, but by Sunday and Monday, it will be in the 20s and 30s. As the cold air comes in, an area of precipitation may arrive in time to cause slippery conditions in the Windy City Sunday morning. As the cold air moves toward the East Coast Monday and Tuesday, the warmth will be erased, but we should not expect any extreme cold with this first outbreak.
Last year was officially declared as being the warmest year in the U.S. since recordkeeping began more than a century ago. Looked at over a long period, it is a slow process... in contrast to the fast changes we can experience in the weather from day to day. As it gets colder in the Northeast next week and the week after, global warming may not be the first thing to come to mind. However, as you can see in this picture, it exists.
It's going to be hot hazy and humid in the much of the Northeast today through Thursday. The recalescent, sudorific, canicular, pyrogenic frying heat gains our attention.
A line of persistent showers and thunderstorms stretched from Long Island Sound to Cape Cod. Some areas in this zone had more than 3 inches of rain this morning, and there can be highway flooding in localized heavy showers this afternoon and evening. This radar shows the rain zone just after 10 a.m. ET.
This map shows the predicted upper-air flow for tomorrow night. Our timing estimates suggest showers and some thunderstorms could affect the I-95 corridor from Portland and Boston to New York City (and perhaps Philadelphia) on Sunday.
For the start of this "Olympics of the Forest," the weather looks good, as forest we can tell. From DC to NYC, it looks sunny for at least the next two, tree days.
As moisture from former hurricane Delores moved northward, the dynamic changed, and thunderstorms broke out. This map shows the more than 300,000 strokes that occurred between early yesterday and early today.
The recent volatility of the weather in many areas of the Central and Eastern states is demonstrated by the widespread thunderstorm activity of the last couple of days. The lightning map shows hundreds of thousands of lightning strokes between 7 a.m. ET yesterday and about the same time today: