This week were were running 20 below but a low pressure system was moving in and the relative altitude kept climbing. Wed. Nov 23rd started clear but the horizon started to gray out with blowing snow and ice crystals. By dinner time, the wind was very strong blowing crosswise to the station and visibility was way down. It produced quite a bit of drifting over the night. But the visibility effect was only at the surface. Above, the sun was still punching through to make shadows so seeing the eclipse the next day was still hopeful.