A Winter Storm Watch goes into effect tomorrow (Monday evening) into Tuesday evening, as a major coastal storm is expected to hit the region.
At this time, the snow is projected to begin between 9p-11p, with the heaviest snow, accompanied by heavy wind gusts, between 3a-11a, falling at a rate of 1"-2" per hour and ending by Tuesday afternoon.
Total accumulations around Philly are currently projected in the 6"-12" range with more to the North and less to the South. In fact, New York City is expecting Blizzard Conditions with snow accumulations from12 to 18 inches with 20 to 30 mph winds, with gusts 40 to 50 mph .
We will continue to track this system; full details from Nation Weather Service below:
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National Weather Service Watch Warning Advisory Summary
URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
559 AM EDT Sun Mar 12 2017
...A MAJOR COASTAL STORM WILL AFFECT THE REGION MONDAY NIGHT AND
.Low pressure will develop off the Carolina coast Monday and move
northeast toward the Mid-Atlantic by Tuesday. Heavy precipitation
will develop along and west of the track of the low. Temperatures
will be cold enough for snow in much of the area Monday night and
Tuesday with substantial snow accumulations possible.
Middlesex-Western Monmouth-Eastern Monmouth-Mercer-Salem-
Atlantic-Coastal Ocean-Southeastern Burlington-Carbon-Monroe-
Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks-
Including the cities of Wilmington, Elkton, Newton, Washington,
Morristown, Flemington, Somerville, New Brunswick, Freehold,
Sandy Hook, Trenton, Pennsville, Glassboro, Camden, Cherry Hill,
Moorestown, Mount Holly, Jackson, Millville, Hammonton,
Long Beach Island, Wharton State Forest, Jim Thorpe, Stroudsburg,
Reading, Allentown, Bethlehem, Easton, Media, Philadelphia,
Honey Brook, Oxford, West Chester, Kennett Square, Collegeville,
Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville,
559 AM EDT Sun Mar 12 2017
...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH TUESDAY EVENING...
* LOCATIONS...Eastern Pennsylvania, all but far southeastern New
Jersey, northern Delaware, and the northern portions of the
Eastern Shore of Maryland.
* HAZARD TYPES...Heavy snow and strong winds.
* ACCUMULATIONS...Snow accumulation of 6 to 12 inches.
* TIMING...Snow begins Monday evening from southwest to
northeast across the watch area. Snow will continue Tuesday
into Tuesday evening...though some locations may see a brief
break in the snow Tuesday afternoon.
* IMPACTS...The heavy snow will make many roads impassable and
may produce widespread power outages due to the weight of the
snow on tree limbs and power lines. Strong winds will lead to
blowing snow, reduced visibility, and additional power outages.
* WINDS...Northeast 15 to 25 mph with gusts up to 40 mph.
Strongest gusts are expected along the coast.
A Winter Storm Watch means there is a potential for significant
snow...sleet...or ice accumulations that may impact travel.
Continue to monitor the latest forecasts.
Snowfall and ice accumulation forecast maps in addition to
experimental probabilistic snowfall information for the latest
event are available online at www.weather.gov/phi/winter