On 7 January 1959, when the ship MS Hans Hedtoft hit an iceberg at Cape Farvel, the radio telegraphist at the weather station at Prince Christian Sound was the first to catch the ship's distress signal.
[citation needed] The weather station is today run by the International Civil Aviation Organization ICAO together with Tele Greenland.
Prince Christian Sound has a maritime polar climate (Köppen ET) making borderline with subpolar oceanic climate (Cfc) due low annual temperature swings for its latitude and relatively high temperature in center months.
Summer temperatures are way below the tree line requirements, whereas the long winters are comparatively mild for its high latitude.
The nearby ice sheet produces cold air which keeps summer temperatures down.