Columbia, South Carolina – South Carolina faces a 40% to 50% chance of winter storm impacts this weekend, with probabilities increasing closer to the coast, as a developing coastal storm system tracks northward along the East Coast between 7 p.m. Friday and 7 p.m. Monday.
According to the National Weather Service Weather Prediction Center, a strengthening low-pressure system is expected to form off the Southeast coast Saturday before moving northward offshore of the Carolinas on Sunday. Cold air in place across the interior Southeast may allow wintry precipitation to reach parts of South Carolina, particularly where precipitation intensity is strongest.
Regional probabilities across South Carolina currently indicate:
- Coastal Counties and Lowcountry: 45%–50% chance
- I-95 Corridor: 40%–50% chance
- Midlands (Columbia Area): 30%–40% chance
- Upstate South Carolina: 20%–30% chance
Snow or a rain-snow mix is most likely inland and north of the immediate coastline, while coastal areas could see mixed precipitation depending on surface temperatures and storm track. Strong winds near the coast may also contribute to reduced visibility and difficult travel conditions.
Travel impacts are most likely Saturday night into Sunday, particularly along Interstate 95, Interstate 26, U.S. 17, and U.S. 278. Even light accumulations could create slick bridges and overpasses, especially in areas unaccustomed to winter weather.
Forecasters stress that confidence is moderate, with the greatest risk focused near the coast where storm dynamics are strongest. Small shifts in storm track or temperature profiles could significantly change precipitation type and impacts.
Residents are encouraged to monitor official forecasts and prepare for possible travel disruptions. Coastal commuters, port workers, and weekend travelers should anticipate delays if conditions worsen.
