7:00 AM | **A major coastal storm with a long-duration impact on the Northeast US over the next few days**

6-Day Forecast

Today

Thickening clouds, cold, chance for a little light rain, sleet and/or snow at times, highs in the upper 30’s

Tonight

Cloudy and breezy with steady rain developing after midnight, possibly heavy at times towards morning, cold, lows in the mid 30’s

Tuesday

Cloudy and windy with periods of rain, heavy at times, chilly, low-to-mid 40’s

Tuesday Night

Cloudy and windy with rain, heavy at times, cold, mid-to-upper 30’s late

Wednesday

Mostly cloudy with the chance for more rain, possibly mixing with snow at times late, windy, cold, near 40 degrees

Thursday

Considerable clouds, breezy, cold, rain or snow showers possible, perhaps a heavier snow squall, near 40 degrees

Friday

Partly sunny, cold, low 40’s

Saturday

Mostly sunny, not as cold, mid-to-upper 40’s

Discussion

A major storm will ride slowly up the coast over the next few days and it will bring nasty weather to much of the northeast part of the country ranging from heavy rain and wind in coastal areas to significant, accumulating snow in inland, higher elevation locations. A dome of high pressure extending from the Northern Plains to eastern Canada will inhibit this developing coastal storm from moving quickly up the coastline and this will lead to a prolonged period of heavy precipitation throughout much of the Northeast US. In fact, the storm is likely to stall out or even take a loop after it reaches the Long Island or southern New England region Tuesday night as it's movement is stymied by stubborn high pressure.

An area of "ocean-effect" light precipitation has broken out across southern New Jersey in the last couple of hours thanks to persistent NE winds. As a result, don't be surprised to see a little rain, sleet or snow during the next few hours well ahead of any effects from the now unfolding coastal storm. This light precipitation is moving inland with low-level wind flow from the northeast to the southwest. The developing coastal storm is likely to produce rainfall amounts of 2-3 inches in the NYC metro region between late tonight and tomorrow night. Coastal sections of New Jersey and Long Island could see winds gusting past 50 mph during the height of this major nor’easter on Tuesday with flooding an additional concern. The best chance for significant snowfall accumulations will extend from the mountains of northeastern Pennsylvania to interior New England where more than a foot can easily fall by later Wednesday. While rain will fall here during the height of the storm on Tuesday, in addition to any light frozen precipitation today, there can be some sleet and/or snow mixed in at the onset of the steadier precipitation late tonight, and snow or snow showers are possible during the back end of the storm from Tuesday night into Thursday.

Video

httpv://youtu.be/EPlzQ9515O0