Not sure if I did this right, but have YouTubed short "from the cockpit" sequence of JP4's over snow-covered Yorkshire just east of Linton-on-Ouse in January 1964. Regret no sound, taken from old 8mm film I shot with fairly primitive cine-camera - allowed because this was final trip before Wings.
Agree with the fog comment above, tho' we only had one dose of it in the year i was there, but it was a beauty! Almost two weeks of freezing fog followed by massive snowfall.
Preview shows i didn't do it right, had hoped for actual YouTube screen at top of this posting, will re-try but also would be grateful for more professional advice.