Harrisburg, PA – The Mid-Atlantic is now under a regional weather alert as a series of Alberta Clippers may bring pop-up snowstorms every other day from Saturday, December 7, through Friday, December 13, according to early projections. The pattern could create widespread travel complications across Pennsylvania, Maryland, New Jersey, West Virginia, and Delaware.
According to the National Weather Service (NWS), a strong northwest-flow pattern will sweep multiple clipper disturbances from the Great Lakes into the Mid-Atlantic next week. These quick-moving systems—often referred to collectively as the “Clipper Express”—can produce sudden snow bursts, gusty winds, and rapid cooldowns.
The first clipper is projected to arrive Saturday night, with additional systems expected to follow at 48-hour intervals. Snow totals remain uncertain, but the NWS cautions that even brief periods of accumulation could create hazardous travel along major commuter corridors, including I-95, I-83, I-81, and I-79.
Forecasters note that the track of each clipper will determine how much snow different parts of the Mid-Atlantic receive. Higher elevations in western Maryland and West Virginia may experience enhanced snowfall, while coastal areas in New Jersey and Delaware could see quick, slushy bursts depending on system strength.
Regions likely to see repeated impacts include Pittsburgh, Harrisburg, Baltimore, Wilmington, Trenton, and Charleston, WV. Sudden drops in visibility and rapid changes in road conditions are possible throughout the December 7–13 period.
The NWS urges Mid-Atlantic residents to monitor updated forecasts daily as timing and intensity may shift with each approaching system.
