modification at the U.S. Coast Guard Yard at Curtis Bay, Maryland and was stationed in Baltimore, Maryland. During the summer of 1975, Northwind conducted an Arctic East Summer cruise. From mid-February 1976 until mid-April 1976 Northwind conducted an Arctic Winter East (AWE) cruise in Baffin Bay between Greenland and Canada. From 6 October 1976 to 13 April 1977 Northwind broke ice during Operation Deep Freeze with Task Force 99 in Antarctica. From 13 to 18 September 1977 Northwind assisted in patrolling the America's Cup race at Newport, Rhode Island. On 2 November 1977 Northwind was still stationed in Baltimore, Maryland. From late December 1977 until April 1978 Northwind participated in icebreaking operations on the Great Lakes to enable ore ships to continue their runs from Minnesota to lower Lake Ports. From 10 July to 10 December 1978 Northwind undertook an Arctic West Summer (AWS) cruise. From 3 November 1979 until 24 March 1980 Northwind joined in Operation Deep Freeze to the Antarctic. From 1978 to 1989 Northwind was stationed at Wilmington, North Carolina and did icebreaking in the Great Lakes. 1980s In August 1980 Northwind sailed on Arctic East Summer (AES). From 26 September 1981 to 13 December 1981 Northwind made a cruise to the Arctic. During April and May 1983 Northwind participated in the joint U.S. forces exercise Operation Solid Shield off the Atlantic coast where she performed simulated mine countermeasure operations. On 16 February 1984 Northwind accomplished the MEDEVAC of a woman from a sailing vessel west of Bermuda. On 5 August 1984 Northwind assisted a personal craft off Kulusuk, Greenland. On 4 November 1984 Northwind seized P/C Alexi I, southwest of Jamaica carrying of marijuana. Northwind was participating in Operation Wagonwheel ForcesUnited States Coast Guard Historian's Office http://www.uscg.mil/history/webcutters/Shearwater_1982.asp Retrieved 2011-09-17 an inter-agency narcotics interdiction effort in the Caribbean from 31 October to 31 November 1984. She became the first icebreaker to make a narcotics seizure and broke the previous tonnage record set by . This was a marijuana seizure record (for an icebreaker) that stands as of 2015. From 2 to 21 July 1986 Northwind assisted the Danish and Greenland governments in reestablishing a musk-ox herd in northwest Greenland. In January 1988 Northwind was drydocked in Norfolk, Virginia. The last mission of Northwind was an Arctic East Summer (AES) 1988 cruise, the Coordinated Eastern Arctic Experiment (CEAREX). Her role was to serve as ice-escort for the Norwegian