December 4 [Day 100] (Valley View site) The temperature was -7C until 1000 when it rose to -6C, ground winds were NW to W gusting to 50 km/h and ridge winds were moderate to strong changing from WSW to W to WNW between 1720 and 0900. Cloud cover started at 10% altocumulus, but quickly increased and thickened to 100% stratus after 1030 when an arctic cold front moved through bringing north winds gusting to 50 km/h, snow and obscuring most of the ridges by 1100. Taking heed of a winter storm warning I left at 1115. No migrant raptors were seen so the Bald Eagle recorded yesterday at 1401 was the last to move south ahead of the approaching arctic front. The storm is forecast to persist throughout the weekend so I plan to shut the count down for a couple of days and resume it for one or two more days when it finally clears again. 4 hours (116.3) No migrant raptors.