Nosehair Update

Since my post on January 10, nosehair-freezing cold finally did put in a brief but dramatic appearance on February 3-4. It even spawned breathless news broadcasts and articles because the Mount Washington Weather Observatory recorded a record-setting wind chill factor.

Wind chill is not temperature. Block the wind and it goes away. If you are wearing sufficient insulating layers and a windproof shell, the effect nearly vanishes. I say nearly, because most of the time our bodies and our buildings are losing a little heat even when snugged up adequately for average conditions. Outside of the enclosure, a little thermal gradient fades out from us, reducing the rate of heat loss from where we want it. Wind whipping over this strips it away, removing the invisible insulation we gained from it.

Winter cyclists have to deal with wind chill all the time, because of how we generate our own, rolling along at whatever speed we're doing. Cold-weather cycling is one of the hardest activities to dress for, because the rider is generating heat through exertion while flying along through the cold atmosphere, cranking up hills and coasting down them, with an actual wind that may come from any angle, interacting with the apparent wind created by forward motion.

I don't know anyone who tried to go for a ride on Saturday, when the temperature started out around 12 to 15 degrees below zero F, with a wind gusting over 30 most of the time. In our shop, with the furnace cranked, we spent most of the day with an indoor temperature from 52 to 54 degrees F. We finally got almost to 60 by closing time. The building was constructed in the 1860s, I believe. The walls were thin, and insulation nonexistent. In a Nor'easter, we can feel the wind actually blowing through the back wall. On Saturday, the wind was westerly enough that it didn't come through directly, but it still stripped escaping heat away from the outside. Some insulation has been added in modern times, but the thin walls mean that there's not enough space for much.

The next day, the temperature climbed steadily to the upper 30s and only dropped to the 20s. Today it got even warmer, with a bit of sunshine. Winter reverted to the temperature range it had stayed in since the season began.

The cold stab did get Lake Winnipesaukee to freeze all the way over, but I would not recommend going out on the new ice. "Ice in" is merely a technicality.

The series of storms that finally brought enough snow to open the cross-country ski trails also brought rain and wet snow in a diabolical combination that produced a thick crust on top of loose snow underneath. The crust can't support a person on skis or snowshoes. It varies in thickness so that the way it breaks from one step to the next makes snowshoeing a laborious series of stumbles as the edges of the shoes catch on the crust. On skis, the crust still breaks, and neither the crust nor the loose snow offer any grip. In bare boots, a post-holer discovers that the snow is deeper than you might expect, with the meager accumulations and long warm spells. On the groomed trails, the cover is barely adequate. Grooming reduces the snow depth and steadily wears it away, while the thinned surface is more vulnerable to the sun heating the dark earth.

The roads don't exactly beckon, but they do offer a passable option for a pedaler who has not invested in a fat bike with studded tires. Some snow machine trails are probably firm enough for a regular mountain bike with studded tires. I prefer and recommend changing to weight-bearing exercise for part of the year, but even the less helpful exercise of pedaling is better than none at all.

I don't have time on a workday to fit a ride in at either end of it until commuting season, and my days off seem to get eaten up with all the things that I don't have time to do in the margins of a workday, so I'm just deteriorating steadily until the daylight gets long enough to start getting base mile rides. I salute all you people with the strength of character to ride a trainer on a regular basis. I do not envy you in the least, but I respect your gumption. That's a lot of sweat and bike abuse.