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  • Phased Vort
    WX Alert: Flood Warnings, Winter Storm Warnings, Gale Warning, Winter Weather Advisory, Small Craft Advisory WXD Alert: Active Discussion, Observations
    As the first significant interior Northeast wintry storm departs and leaves behind a trof accompanied by very cold temperatures under the control of build high pressure, we look towards the SW Atlantic Ocean, in the area between the northern Bahamas, eastern Florida coast and the Georgia coast, where clouds gather and conspire to initiate cyclogenesis for the next storm that could affect the easternmost areas of the Mid-Atlantic and Southern New England (locations to the east of the Appalachian mountain chain). Central Atlantic ridge high pressure in control, as its natural with its wind flow, should send moisture-laden winds towards the Bahamas, Cuba and Florida´s east coast offshore areas as a departing trof attempts to drag a decaying cold front through there. As a result, that decaying cold front stalls out and acts as a focusing mechanism to allow for that central Atlantic ridge moisture rich flow, to pile up against the dying stalled out cold front energy, hence leading to low-pressure system cyclogenesis, the one that could become east coast storm special.  As the cyclogenesis progresses, there should a pretty strong blocking high-pressure ridge flexing its muscles over SE Canada. That wall to the north should act to force the storm, along with the warm Gulf stream water energy, to probably deepen relatively well, and eventually turn to the NE or ENE, somewhere to the south of Long Island and out to sea.

    WXD Alert: Post Discussion
    Significant snowfall beginning late Thursday and ending Friday morning. A developing low pressure system will track northward along the Eastern Seaboard Thursday and Friday. Snow associated with this low will affect Eastern Ontario beginning Thursday evening. Snow will continue Thursday night and end Friday morning.Current indications are that total snowfall amounts will be in the 10 to 15 cm range. Snow may affect the drive home Thursday evening,.

  • ohiobuckeye45
    WXD Alert: Post Discussion
    The highest snow accumulations are expected underneath the upper level low itself across southeast Missouri and southern Illinois where 4 to 8 inches is forecast. Farther east across the Ohio Valley, the central Appalachians, and the interior Mid-Atlantic (west of I-95), generally 1 to 2+ inches is expected. Freezing rain will also be a concern across some of these same locations with generally up to a tenth of an inch expected across the lower Ohio Valley.

  • Mike W IN ALTMAR
    WX Alert: Winter Weather Advisory WXD Alert: Active Discussion, Observations
    A front will push across the upper and low Great Lakes tonight into Saturday. This will bring additional snowfall to the Great Lakes along with the New England interior--and will continue into Sunday. Periods of light snow and freezing rain will result in slippery roads. Mixed precipitation.will occur in Portions of central Pennsylvania,.Southern Erie and Wyoming counties and the western Southern Tier as well as further North in the Eastern Lake Ontario Region.

  • Phased Vort
    WXD Alert: Post Discussion
    Developing low pressure will move along the Eastern Seaboard today, leading to widespread precipitation. Rain is expected across the Southeast, Mid-Atlantic, and coastal Northeast today, while the interior Northeast will be cold enough to get snow. Rainfall totals will be around an inch in coastal New England, snowfall totals could be high in northern New England, with 6 to 8 inches.

  • MesoscaleBanding
    WXD Alert: Post Discussion
    There is a growing signal supporting ample leading wave/frontal genesis and deep moisture return to would fuel heavy rain/convection expansion northward across the east-central then eastern U.S. Moisture feeding back into a sharpening baroclinic zone meanwhile presents an organized snow threat through the Appalachians/Ohio Valley, with ample lake effect enhancement lee of the Great Lakes. Significant early season snows are possible.

  • SOMOSnow
    WXD Alert: Post Discussion
    Very cold weather is expected to be in place across the Great Plains through at least the end of the week with high temperature departures from normal ranging between 10 to 25 degrees below average from the Canadian border to the Rio Grande. Upper level disturbance will approach the Central Plains tonight, increasing snowfall coverage with locally moderate intensities into the central High Plains. 2-4 inches, locally higher, can be expected by Thursday afternoon.