Originally Posted by
Vampire
I had a bit of a scare on the Fan Dance Race (Jan 2013), it was the weekend we had all the snow in Wales and it was something like -7 on top of Pen-y-Fan without the wind (which there was plenty of - and snow).
The race started at 11.00, I was near the back of the field so by the time I reached the top of Corn Du I was on my own. My Camelbak hose had frozen within 30 minutes of the start. Snow was ankle/knee deep drifting to 2m deep at some points on the edges of the path. I was wearing merino l/s top and a goretex shell, Ron Hill trousers, gloves, hat and a buff, goretex boots with crampons and merino socks on my feet. I was fine up and over Corn Du and Pen y Fan, and all the way down the roman road towards torpantau (sp?). At the halfway point I stopped for 3 or 4 minutes but didn't put on another layer as I felt I'd be working hard again on the way back (I think this i where I started cooling down).
On the way back I kept a steady pace but was exhausted and must have been slowing down. The DS (ex-SAS guy) sweeping the back of the field was with me for a while but then he dropped back when I passed I group of slower people. I slowed right down to a stop/start walk going back up Jacobs Ladder to the top of Pen y Fan. At the top of Pen y Fan I think I was sweating a lot, at least I know my base layer was soaking. The DS on the summit had a chat with me and made me drink some water (took about 5-10 mins to defrost the Camelbak enough to get some - during which time I must have been getting cold fast). It crossed my mind whether to put an extra layer on but I remember thinking "I'll be at the finish in 45 mins and it's all downhill - i'll just crack on". The DS warned me about drinking too much cold water from my Camelbak so I finished and got moving.
I jogged across Corn Do and them some of the way down the next slope, I was utterly exhausted by then so was walking for at least the last 30 minutes. I got to the finish ok and remember being asked loads of questions, how was I feeling, who else had I seen, how far back were they etc. I remember being really confused and not being sure how to say there was a group about 20 mins behind me. I must have made some sense as the DS let me go to the Storey Arms to get some soup.
I sat in there at a table on my own in a bit of daze. There was a guy wrapped in foil blankets being re-warmed and I remember thinking he looked in a bad way. At this point I was sipping about 200ml of soup whilst still in my wet thermal top and goretex.
I finished the soup and wandered out to my car, changed to a dry top and put a duvet jacket on. I went back to the storey arms to buy some commemorative beers, then jumped in the car and drove to merthyr tydfil and stopped in KFC. I had some food and sat in there for about 15 minutes, then went back out to the car. As I got into the car I was hit by uncontrolled shivering and full body shakes/cramp, this lasted about 5 minutes and I felt better afterwards. I had the car heater on and lots of dry layers so must have been warming up. I got on the road again and drove back to Swindon. I was making a point of putting my hands up to my face every few minutes and remember they felt cold each time I tried, all the way to the Severn bridge crossing. I remember they felt fine by Bristol and I took off my hat at that point.
Looking back, I must have been quite confused as I missed quite a few warning signs. Like stopping on Pen y Fan but not putting an extra layer on. I was still making the right decisions with navigation though, so can't have been completely out of it. The shaking in the car was quite a wake up call though, up to that point I just thought I was a bit cold.
Edit: In the end I was out in sub-zero temps and strong wind/snow for 6h20mins (13 miles and 1100m of climb/descent in snow/ice), I measured what was in the Camelbak the next day and found I'd drank less than 750ml in that time. I'd eaten a small bag of flapjacks and about 10 energy gels, but my Suunto had estimated I'd used 4500+ calories in that time.