Météo-France is providing tailored forecasts in real-time in support of the team in McMurdo, based on adapted versions of operational models.
A global model is run at a resolution of around 10km in the area. This model was indeed predicting low winds on the day of the first launch
A fine-scale model, run at 2.5km in the area around McMurdo is providing more detailed forecasts. After some quite strong winds (10m/s predicted for the 10 September at 9hours, universal time, confirmed by the local observations), the conditions might be more favourable.