In reply to timbers: Hard to say, as the weather looks set to change tomorrow. Today it was in minus temperatures all day, but dry, and I didn't see much ice - perhaps some of the high-up minor roads that never get gritted like above Burbage Bridge, Bamford Edge, etc. were icy? Don't know.
But it is forecast to be much warmer & wetter from Friday into the weekend: some snow & lots of rain & wind.