The walk across the plateau was livened up considerably by the accurately-forecast strong and gusty winds. These made standing upright a challenge at times - I'm sure the little tarns actually had white-caps on their surface. In the pinnacle carpark, without the wind-inhibiting friction of the plateau's boulders and low vegetation, I found that even the friction of my boots on the gravel was insufficient, and the wind was actually moving me slowly across the surface while I balanced myself against its pressure. Some smaller people were having a lot of trouble returning across the road from the viewing shelter to their vehicles. The maximum gust yesterday was 111 km/hr at 10:48am, a little short of the maximum earlier in the year (19th August) of 144 km/hr.
The ZigZag Track still has quite a deal of snow and ice on it, and this made for a slower and more careful descent than would otherwise be required. When it's windy on the summit, the ZigZag Track is usually much more sheltered, even quite still, being in the steep bowl between the two main buttresses of the mountain. The views from here are very good over Hobart and beyond.