Nor'easter Expected To Bring Heavy Rain, Strong Winds, Beach Erosion To The Northeast, Mid-Atlantic

Nor'easter Setup
An upper-level area of low pressure will slide southeast from the Great Lakes and develop a surface low off the Mid-Atlantic coast Tuesday night. This low will then remain off the New England coast through at least Thursday. The low will also deepen as it meanders off the Eastern Seaboard.

Rainfall Forecast

Rainfall Forecast

Wednesday's Forecast

Wednesday's Forecast

Thursday's Forecast

Thursday's Forecast

This low will combine with a strong surface high pressure system in eastern Canada to create a tight pressure gradient which will bring strong easterly to northeasterly winds into parts of the Northeast. This is an onshore wind for parts of New England, raising concerns for coastal flooding and beach erosion due to the prolonged duration and of these winds.
The subtropical jet stream will also move north which will bring tropical moisture northward, enhancing the rainfall across the region.
Anywhere from the northern Mid-Atlantic to New England will likely be affected by heavy rain and strong winds. The exact track of the low will determine the timing and location of the heaviest rain and strongest winds.
The strongest winds and heaviest rain will most likely occur on Wednesday and Thursday, with over five inches of rain possible in some areas of Maine and New Hampshire.
Excessive rainfall and localized flooding, especially near rivers and streams, are likely. The good news is that the cold air will stay locked up in Canada, so the only chance for snow during this event is Tuesday night into Wednesday in the central Appalachians where a few snow showers are possible above 2500 feet.
With that said, the Mid-Atlantic and Northeast needs to ready for localized flooding, high surf and beach erosion starting midweek and continuing through Friday.

What is a Nor'easter?

A gets its name from the strong northeasterly winds blowing over coastal areas. They are most common between September and April and form off the East Coast of the U.S.
Nor'easters usually develop where cold air from Canada meets warm air from the Gulf of Mexico and Atlantic. The Gulf Stream remains relatively warm during the fall and winter, which helps warm the colder air over the water. This temperature difference then fuels the storms.
are not always associated with snow, though wintry conditions do occur during these events. Typical nor'easters do bring heavy rain, strong winds, coastal flooding and beach erosion to the eastern coast of the U.S.