The Arctic in the spring is a very challenging environment.
The immediate vicinity of the incident including the location of the possible crash site, at Gråtådalen.
“The weather conditions in the area have been challenging and are expected to get worse,” the HRS stated.
Local assets involved in the search for the Osprey include a rescue helicopter launched from Bodø, together with a Royal Norwegian Air Force (RNoAF) P-3 Orion maritime patrol aircraft, which are home-based at Andøya and can deliver air-droppable rescue gear. According to the HRS, another rescue helicopter was also sent from Ørland. The RNoAF bases at Bodø and Ørland have detachments of veteran Sea King Mk 43B and more modern AW101 Mk 612 rescue helicopters.
https://www.thedrive.com/the-war-zone/44833/possible-crash-site-identified-of-marine-mv-22-osprey-that-has-gone-missing-in-norway