Windchill, Frostbite, and Winter Storms Coming

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She’s back. Winter that is. The past few days at Crystal have been quite cold. While we haven’t yet been pounded by mounds of fresh snow, the snow from last weekend is still cold, dry and fluffy. And, it’s about to get a whole lot more wintery.

First, let’s look at the current weather. Temperatures are minus Fahrenheit and the wind is coming from the east. Since Crystal mainly runs along a ridge oriented north and south, east winds rake up the slopes and blow hard across the top ridges. East winds are generally cold and miserable. If you’ve ever traversed across the top of Green Valley with a brutal wind on your right cheek, that’s east wind. Usually we get these winds during periods of high pressure, when cold air trapped on the east side of the Cascades leaks over the passes into the west, finding its way over places like Crystal.

windchill

Windchill Calculator courtesy of NWS

Take yesterday for example. The above chart, courtesy of NWS, shows that winds in the 35 mph range can significantly impact temperature. At the top of the High Campbell chairlift yesterday, we measured the air temperature at -11 F. Add in the windchill and it feels like -41.

According to the chart, bare skin will suffer frostbite in ten minutes. I can attest to that. While trying to stay warm up there, a fellow patroller and I hiked the ridge to try to raise our body temperature. During the hike, my neck gator slipped down and a sliver of skin was exposed to the full brunt of the east wind. After less than five minutes I felt a sting on my cheek, which turned out to be frost nip.

Crystal Mountain

Hiking the Queen with the Hiking Queen (aka Michelle Longstreth)

Today the winds are even stronger and the temperatures are starting out even lower. While the Crystal telemetry is advertising spikes into the 100s mph, human observations aren’t validating that. But even a steady 30 mph is going to feel like -35 F. So bundle up. Keep moving and make sure that neck gator doesn’t slip down.

As for the weather forecast, the temperatures should moderate over the weekend. We might pick up a little bit of snow, but not much. A more normal winter weather pattern should set up next week, with Tuesday and Thursday bringing cold precipitation our way.

7 Day Forecast for Crystal Mountain

7 Day Forecast for Crystal Mountain

It also looks like Tahoe should finally get some snow. And as stingy as our snowfall has been this season in the PNW, those guys down there need it even more than we do.

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