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    First Snowflakes of the Season Headed for East This Weekend

    By By Alex Sosnowski, expert senior meteorologist.
    September 29, 2011, 4:31:17 PM EDT

    As much colder air rolls into the East and South this weekend, the first snow showers of the season will visit some of the high ground in the Appalachians.

    The warm, humid conditions and tropical downpours present along much of the Atlantic Seaboard at midweek will be replaced by colder air and chilly showers.

    According to AccuWeather.com Chief Meteorologist Elliot Abrams, "Where that air becomes cold enough, over the highest elevations, wet snow can mix in with the rain showers or even completely change over to snow for brief episodes."

    Areas from the ski resorts of western New York state, southward to the mountains of western North Carolina and easternmost Tennessee are fair game for the snowflakes during the first half of the weekend, essentially Friday night into Saturday night. Sunshine should bounce back over the southern Appalachians Sunday.


    400x266_09281547_lateweeksnow


    Farther to the east, the highest ground in the Poconos, Catskills, Adirondacks and Endless Mountains may have some snowflakes mixing in Saturday night into Sunday morning.

    Since the core of the cold air at the surface and high overhead will be aimed for the Virginias, western Maryland and western Pennsylvania, it will be too warm for snowflakes to mix in over most of the mountains of New England. The exception would be the Presidential range Sunday night into early next week.

    Most of the places that do manage to receive wet snow or snowflakes will not receive an accumulation.

    It will not snow in the I-95 cities with this event, nor will it snow in most valleys within the Appalachians. This eliminates about 95 percent of the population from seeing the snowflakes this weekend.

    However, some folks driving over the ridges during the times noted may see some flakes flying or see some slush hitting the windshield.

    According to Meteorologist Mark Mancuso, "Where the sky becomes clear and the winds diminish to the west and south of the storm this weekend into next week, there could be areas of light frost."

    This is possible over parts of the Midwest and even into part of the interior South. However, it will probably be just a tad too warm this time for most locations.

    Later next week, a southward push of cold air from eastern Canada with showers could allow some of the mountains of New England and the high ground in Quebec to get their first snow showers of the season.


    300x200_09281412_usweekend


    Map Discussion

    A storm has been parked over the Midwest for a week now.

    As what was once Typhoon Roke drops into the Midwest storm, it will kick that storm farther to the east.

    The two storms will merge together and hang out over the northeastern United States for a few days.

    The added strength of the two storms will not only draw in colder air from Canada, but will drag down cold air from aloft. Enough moisture and cold air will be present to allow it to snow.

    The snow level will vary and will depend on where the bubble of cold air sets up.

    According to Expert Senior Meteorologist Paul Pastelok, "The lowest general snow levels (around 2,500 feet) will probably reside over West Virginia, western Maryland and southwestern Pennsylvania."

    An intense shower could also briefly drag down snow levels elsewhere in the mountains of the region.

    High pressure will build in slowly on the back side of the storm duo and will bring a bright fall weekend to much of the Midwest.

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