Friday, April 8, 2016

More April Snow Will Blanket the Great Lakes and Northeast Into the Weekend (FORECAST)

April 8,2016
April snow may elicit groans from all but the most avid winter-weather fans. Unfortunately, more snow in the Great Lakes and Northeast means breaking out the shovel or even the snowthrower into the weekend.
With a sharp, southward dip in the jet stream still dominating eastern North America, waves of cold air from Canada will continue to surge into the eastern states. The air has been cold enough to deposit snow in the Midwest and Northeast since last weekend, including Winter Storm Ursula this past Monday.
(MORE: How Long Will the Cold Last?)
A wave of low pressure will ride along the frontal system northward into Quebec through Friday, wrapping moisture into another pulse of cold air. Meanwhile, another wave of low pressure will pinwheel southeast through the cold jet-stream dip in the Great Lakes into the East as secondary low pressure forms off the East Coast and pushes offshore.

Atmospheric Setup For Snow Into Late Saturday
Let's break down what this all means for snowfall.

Through Saturday

Over the past few days, snowfall totals have piled up across parts of the Great Lakes. Parts of the Upper Peninsula of Michigan have picked a foot of snow the past few days.

Current Radar and Conditions
Snow Timing
  • Friday: Snow lingers across parts of northern New England and Upstate New York. To the west, snow will spread from parts of northern Minnesota, Wisconsin and the U.P. of Michigan. Some light rain may also change over to snow across Lower Michigan and northern Ohio.
  • Saturday: Snow shifts from the Great Lakes and Ohio into the central Appalachians. As low pressure develops off the Eastern Seaboard, some rain may mix with or change to wet snow over parts of northern Maryland, Pennsylvania, Delaware, New Jersey and New York state.

Friday's Forecast

Saturday's Forecast
How Much Snow?
Most areas will see less than 6 inches of snow through late Saturday night, though moderate snow accumulations are expected from the northern Great Lakes to parts of the mid-Atlantic states generally north and west of I-95.
Given the track of offshore low pressure, little or no accumulations are expected in most of New England.
The best chance for locally more than 6 inches of snow through Saturday will be across the higher terrain of West Virginia and far western Maryland.
(FORECAST: Duluth | Chicago | Pittsburgh | Syracuse

Forecast Snowfall Through Saturday Night

Another Round

A second low-pressure system is expected to track through southern and eastern Canada later this weekend into early next week, wrapping moisture into a reinforcing plunge of cold air along the northern tier of states.
As a result, mainly light snow will spread from the northern and western Great Lakes Saturday night and Sunday into Upstate New York and far northern New England Sunday night into Monday.
(MAPS: 7-Day Rain/Snow Forecast)
Winter-weary folks farther south in the Appalachians and Mid-Atlantic states won't see any snow from this second system. Rather, rain will fall over those areas, melting any snow left over from Saturday quickly.

Sunday's Forecast

Monday's Forecast

MORE: Macro Snowflakes

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