Harrisburg, Pennsylvania – Prolonged cold temperatures are expected to increase river ice across the Susquehanna Basin this week.
According to the National Weather Service Middle Atlantic River Forecast Center, ongoing snow across portions of Pennsylvania will move eastward later today, followed by a pattern of lake effect snow and sustained cold through midweek. Forecasters say these conditions will promote continued river ice development across the region.
The three-day hydrologic outlook indicates new liquid-equivalent precipitation amounts below 0.1 inches today, with up to 0.25 inches possible through Tuesday in parts of the North and West Branch Susquehanna Basin due to lake effect snow.
While snow amounts are expected to remain limited, officials emphasize that several consecutive days of cold temperatures will allow ice to thicken on rivers, streams, and tributaries. At this time, no flooding concerns exist, and river levels are expected to remain stable.
Motorists traveling near waterways and bridges — including routes crossing the Susquehanna River near Harrisburg and along Interstate 81 and Route 22/322 — are urged to use caution, particularly during overnight and early morning hours when cold temperatures peak. Ice formation and localized snow showers could contribute to slick conditions near river corridors.
The National Weather Service noted that hydrologists will continue monitoring river ice conditions throughout the week as cold air remains in place.
Commuters and outdoor workers are encouraged to stay informed, dress for cold conditions, and remain alert for changing weather impacts near waterways.
