Residents of the U.S. Mid-Atlantic endured a formidable winter in 2025-2026, marked by several high-impact storms and prolonged stretches of cold temperatures that left parts of the Chesapeake Bay frozen over. Longtime residents may recall a winter nearly 50 years ago when the region saw even more widespread ice cover.
The MSS (Multispectral Scanner System) on Landsat 1 captured this image during the exceptionally cold winter of 1976-1977. The mosaic combines two Landsat scenes acquired on February 7 with a third captured on February 8. The landscape is shown in false color (MSS bands 6-5-4), in which ice appears in shades of blue, green, and white. On land, snow appears white, vegetation is red, and urban areas take on brown-gray tones.
A NASA analysis published in 1980 drew on these and other Landsat images to examine the anomalous ice conditions. Images indicate that ice began forming in the Chesapeake Bay’s upper tributaries in late December 1976 and spread to the middle of the upper bay by mid-January 1977. It reached its maximum extent around the time of this image, one week into February, when ice spanned 85 percent of the bay.
Persistent westerly winds at the start of February pushed ice toward the eastern shores of the Chesapeake and Delaware bays, contributing to fractures visible across the ice’s surface. As winds subsided, calmer conditions allowed new ice to form in areas of previously open water, visible in the image as thinner, darker blue patches. Reports …