Nordic Skiing and Cold Weather Tips

The ski season is in full swing, and there is a lot of snow, for this time of year.
The temperature is now dropping below minus -25C, and the glide speed is slowing down. Just add another layer of clothing, and if need be, cover the face. Neoprene face masks have worked best for me. Booties will also slow your speed down as well, but will keep your feet warm.
Do not look at the kilometers you ski, but look at time at a certain exertion or heart rate level. Treat this cold weather skiing, as a time for specific ski strength training.
If you need to have faster snow, ski smaller loops with several other skiers, and the snow speed will pick up, as you ski.
Look at skiing in a area that offers protection, from the wind. You may need to ski the opposite way then what is normal, so any wind will be behind you. However ski safe if you are skiing in the  direction that is not recommended. At such cold temperatures there are normally a lot fewer skiers on the trails.
Temperatures below -20C means you really need to be careful. If you are skiing with others, check each other over for any sign of frostbite.

When it comes to waxing for glide, fresh snow, and cold, it is time to wax again. Green glider and a structured base with something like 400 grit sandpaper, before waxing will help. Another way to get faster skis, is to use a longer skis, then what you would normally use. After waxing, you may also wrap fiberlene around a cork and smooth the glide areas, after having waxed, scraped and horsehair brushed the skis. Of course the final scraping, brushing and corking would occur outside, once the base has contracted and squeezed the last of the glider that is close to the surface of the ski base.
By the way, if you still have some old WOODEN racing skis, now is the time to pull them out. Cold temperatures with fresh falling snow is the time when they are the closest in speed, to the new sintered racing skis. Be sure to wax with polar from tip to tail, with loose snow in the tracks. You will be amazed at how fast you can ski, especially uphill on those single cambered racing wood skis!
In fresh falling cold snow, pull out your old carbon waxes that are more then 25 years old. Those waxes have more tar in them which is helpful in cold fresh snow.