Philadelphia, Pennsylvania – A prolonged stretch of dangerous cold, strong winds, and coastal impacts is expected to affect eastern Pennsylvania, New Jersey, Delaware, and northeastern Maryland through the weekend, creating hazardous conditions for travel and outdoor activity.
According to the National Weather Service in Philadelphia/Mount Holly, wind chills near 0°F to -15°F are expected Friday night into Saturday morning, particularly across areas north and west of the I-95 corridor. These conditions increase the risk of hypothermia and frostbite for anyone exposed outdoors for extended periods.
Strong winds will accompany the cold air mass as a coastal storm system passes nearby. Forecasts show wind gusts between 35 and 50 mph, with the strongest winds expected Saturday into early Sunday. The highest gusts are anticipated near coastal and marine areas, including locations along I-95, Route 30, Route 13, and I-295.
While snowfall amounts remain uncertain, forecasters note that light to moderate snow is possible in parts of the region, especially closer to the coast and across southern New Jersey and Delaware. Snowfall confidence remains moderate, with the primary hazards expected to come from wind, cold, and rapidly changing conditions rather than widespread heavy snow.
Coastal and tidal flooding is also a concern. Minor coastal flooding is possible during Sunday’s high tide cycle, especially in vulnerable areas along the Delaware Bay and New Jersey shoreline. Wave action combined with strong onshore winds may lead to localized roadway flooding near coastal routes.
Temperatures are expected to remain below freezing for much of the weekend, with some locations potentially experiencing two consecutive weeks of sub-freezing conditions, particularly north and west of I-95. Some moderation is possible early next week, though cold conditions may persist.
Residents are urged to limit time outdoors, secure loose objects, monitor coastal flood advisories, and use caution when traveling, especially during overnight and early morning hours.
