All Weather News

Another Nor’easter for the East? Looks Likely

4 Mar 2018, 10:10 pm

There’s a rising likelihood of another coastal nor’easter for the mid-Atlantic and Northeast this week. Here are the latest details of what we know so far:

  1. Weather models continue to advertise a high impact coastal storm
  2. Rain, snow, and wind could be heavy
  3. Changes to the forecast will likely occur as we get closer to the event
The weather setup on Wednesday morning shows a coastal low pressure area developing near the Chesapeake.
  • Weather models continue to advertise a high impact coastal storm

For days now, numerical weather models we rely on have shown this coastal low near the mid-Atlantic to New England. Thus, there is rising confidence that we will at least have some kind of moderate to heavy storm impacting these areas Wednesday to Thursday. Here’s how it is likely to pan out.

The forecast weather map for Tuesday, March 6 where green shows rain, pink shows a wintry mix, and white/blue shows snow.
The forecast weather map for Wednesday, March 7 where green shows rain, pink shows a wintry mix, and white/blue shows snow.
The forecast weather map for Wednesday, March 7 where green shows rain, pink shows a wintry mix, and white/blue shows snow.
The forecast weather map for Thursday, March 8 where green shows rain, pink shows a wintry mix, and white/blue shows snow.
  • Rain, snow, and wind could be heavy

There will likely be 0.50-1.50″ of liquid precipitation that will fall between Tuesday to Thursday along the Northeast areas. *Depending on temperature* this could result in more than a foot of snow in spots. Generally when making snow forecasts, you take the liquid precipitation and multiply it by 10 to get the amount of snowfall. Here, the range would be 5-15″ of snow. However, not all of it will fall as snow as there will be some rain that mix in at times. This makes the exact snow totals difficult to say for now.

  • Changes to the forecast will likely occur as we get closer to the event

So far projections have consistently shown 6″+ of snowfall for this event. Some models have advertised up to 20 inches. However, the heaviest accumulations will likely change because the exact track and location of the low pressure area is not yet known. Also, changing the track and position of the low pressure system will change temperatures, thus precipitation type varying, and snow tallies variable. For now, plan on at least some kind of impacts on Wednesday to Thursday, with the heaviest impact felt on Wednesday night. We will keep you updated throughout the week.

-For WeatherNation, Meteorologist Steve Glazier

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