Thursday, March 03, 2022

Winter's fragile skin

 If cross-country ski trail grooming was a competitive sport, our groomer Steve would own a permanent spot on the podium. But rather than a sport, grooming is an art.

In a winter like this one... and last one... and too many others in this era of winter's demise, grooming has been a delicate art. Our small touring center can't marshal an army of shovelers to move snow from where it might lie to where we need it. And it can only be pushed in by the grooming machine if it lies nearby and there's a clear path for it. But as long as there's a couple of inches of cover on a continuous loop, Steve can produce a usable trail. There are good groomers who don't ski, but Steve's art is elevated because he knows what he would like to see as a skier.

Last weekend we received eight or nine inches of light powder on top of bare dirt or yards and yards of solid ice. That packed down to two or three inches, not even enough to set a classic track. It was enough to open almost the entire 30K network, though. Renters flocked. Since the weekend, a couple of little clipper systems have brought a couple of inches at a time, which Steve has blended into the existing surface to produce a trail so nice that people are calling in to thank him. The weather has been cold enough, despite strengthening sun, to keep the system operating.

It all goes to hell on Saturday. The temperature is hopping up to the mid 30s, with sizzling sunshine. Sunday gets warmer and wetter, ushering in a week where the word "snow" does appear in many of each day's descriptions, but only as part of a mix, in temperatures well above freezing.

Right now I know that the little gladed knoll behind my house is covered with silky hero snow. I know this because I laid down a beautiful series of turns on it when I poked around out there on Tuesday. My town is a bit further north than the touring center, so I also got a little more snow out of the little clipper systems that have bustled through. The back yard looks inviting, but I have to go to work to earn money to buy cat food. The powder will be obliterated by the time my next days off come around.

Old winter has a fragile skin. Even in the accommodating powder on Tuesday I had to work around the fallen limbs and barely-covered rocks. I know the surface well, because it is literally my back yard. Further up, where the trees had been cleared and low growth has had a couple of seasons to get thicker, routefinding is trickier, with few opportunities to link turns on the descent. The little bits of powder aren't enough to fill in most of that, but I did find a few little pockets preserved by the strategic shade of trees, or a helpful fold in the contours.

Anyone living where the storms have been dumping will laugh at the idea that winter's hide is thin and delicate. It certainly varies from place to place and season to season -- or even week to week. 

March is considered a spring month by meteorologists. Although the daylight is less than 12 hours for more than half of the month in the northern hemisphere, the weather pattern definitely leans away from the cold and darkness of the real depths of winter. We do get big storms, but especially in recent years the snow they bring has been so heavy and sticky that it's often unusable. With a well-treated ski you might get around without forming big snowballs on your feet, but the grooming machine can't work with it unless the temperature goes down and stays down long enough to freeze-dry what's on the ground. And that has been increasingly rare.

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