According to this weekly report published by the
AWI Alfred Wegner Institut on December 17th, 2011 a BO105 crashed on its way back from the research station "Neumeyer III" to its base, the research vessel "Polarstern".
Snow showers and strong winds (8bft. = 35-41 knots) are mentioned.
The backup helicopter (another BO 105) was sent out to rescue the crew and the pasengers but suffered a hard landing upon arrivel.