Taking the GFS the -5 reaches the UK shores at 57 hours, then get mixed out at 99 hours. Then returns at 135 hours but mixed out again by 144 hours. Then by 192 the pattern gets pushed east along with all coldish uppers. Not a lot of cold upper air about, lots of mixing, probably due to it being PM and not something easterly or proper northerly I guess.
There is no -10 Uppers in sight. This pattern is cold due to wind, but just looks like a mix of wintry showers in a strong wind, with anything settling way up at elevation.