Just got back from Glencoe (literally!). Interesting experience as the weather was excellent (in that it didn't rain) but there was a great deal of snow on snow on snow!!!! Interesting from a metering point of view and also from a compositional angle - as all foreground "interest" was ...... snow!
The thick blanket covering of the white stuff made trekking off road ... interesting; Rannoch Moor and the area around Buachaille Etive Mor is unforgiving when you can actually see what you're walking over; add a foot or more of thick snow and all the rocks, streams, pools are totally covered ... hmmm. Lochan na' Achlaise and Loch Ba were frozen and totally covered in thick snow too. Witnessed some fools actually walking out over the lochan to get closer photos of "the tree" - but they were digital users so what do you expect!
I can personally vouch for the temperature of water on Rannoch Moor - whilat traipsing back to the car I managed to walk across a "hidden" stream (that I had previously walked over without incident) and found my right foot breaking through a foot of snow and a layer of ice before plunging up to my groin in a mix of freezing water/ice/peat slush!
Managed to expose some 5x7 and 6x17 before blizzard conditions on Saturday made photography/driving/anything almost impossible.
Oh yes - stepped on my Gossen Starlite meter and promptly demolished it

Luckily had a back up meter but still ... £££££