Are metar winds not magnetic?
Nope. ATIS & ATC report Magnetic .Unless you are in N Canada-compass unreliable area-if memory serves me correct, in which case it will be reported as True as well.
Used to operate to LSI (Sumburgh, Shetland Is.) and regularly got winds like those. Scary when you did your first one for the winter, but then, a breeze, so to speak! The hard part was, as intimated earlier, after landing. Getting the pax and the bags etc off was an interesting exercise. The locals were ok-they were used to walking at 45degrees, and not too many tourists in the winter.....