WRC News4 At 5 February 13, 2015
They had to take breaks. Medics say those working or even passing through in these conditions have to be careful with the exposed skin. Warning frostbite could set in in just a half hour. But they also warn of dehydration, something we normally dont think of until the hotter months. Its very easy to become dehydrated even in the wintertime. Were all bundled up trying to stay warm but at the same time while youre doing that you can also sweat. We do encourage people to make sure they stay hydrate...
Source: archive.org