Today we got up to -12 C in the sunshine, with a slight breeze out of the
west. While I don't expect to ever -- EVER -- encounter temperatures like
this on the great trek to Jerusalem, I thought today would be a good day
to do a live test of my layering system.
The results were encouraging. It took me 40 minutes to walk 4 km, so I
was moving at a good pace, especially considering the slush, snow, and ice
that was covering the sidewalks most of the way. The tip of my nose got a
little cold because I can't cover it without having my glasses completely
fog up, my arms felt a slight chill, but my core was actually a little too
warm. (Too warm in the winter is just as dangerous as too cold, since
once most clothing gets damp from sweat it loses a lot of its insulating
qualities.) Next time I'll leave the insulated vest at home and add an
extra long-sleeved layer.