Thursday 9:45 a.m.
As the storm and cool front that caused heavy rain from New Jersey to Maine move away, a high pressure area from the Midwest will promote the return of sunshine to the Northeast. A cool northwesterly flow will hold temperatures in check today. A warmup will start tomorrow and continue this weekend.
At the end of the weekend into early next week, there will be two upper-air currents to consider. The main one will undulate across the Northern states and southern Canada. Fronts embedded in the flow can cause bands of clouds and some showers as they approach and arrive, but they won't cause any long lasting rain.
However, the second branch will drop into the Gulf states, then meander part way up the East Coast. That current will be loaded with moisture. Some computer models show one of the northern branch cool fronts stalling from the Ohio Valley to New Jersey, then show the addition of southern moisture to the area around this boundary. Such an outcome could lead to several days of unsettled and showery weather. The map below is a snapshot forecast for next Monday. We'll look at the situation again tomorrow.
The map below the video is one of the GFS solutions for where the southeast storm will be early Saturday. The precipitation is predicted to be farther north than suggested by other models.
It is freezing cold in the Northeast this morning, but this map shows that much more mellow mildness has reached the Plains.
Extensive precipitation straddles both sides of the cold front that was moving through central New York and central Pennsylvania as of mid morning. This radar shows the distribution of rain and snow; some temperatures are added.
The cold front approaching the East shows up quite well in this pressure analysis. Several temperatures are plotted to give you a sense for how much the temperature changes behind the cold front. At Chicago, it went from 60 at 4 a.m. to 39 at 5:19, a 21-degree drop in little more than an hour.
Temperatures on Sunday and Monday will range from the 60s in parts of New England to near 80 in Maryland and Virginia. However, a strong cold front will then trigger and perhaps a few thunderstorms as it ushers in air that will be 30-40 degrees colder than it will be ahead of the cold front.
During the early morning hours of April 15, there will be a total lunar eclipse visible across North America. This eclipse is the start of a <em>tetrad</em>, a series of four total lunar eclipses over a two-year period. The totality begins at 3:07 a.m. ET, 2:07 a.m. CT, etc.