The following is the forecast discussion from the National Weather Service in Spokane for this weekend. While it is almost certain that bitter cold will make the fishing so much more interesting this weekend. Check out the possibility of heavy snow!! Cold, wind, and snow in March!! As they say...ENJOY. Friday through Sunday: The arrival of a strong arctic cold front with much below normal temperatures and biting north winds by Friday evening appears to be a near certainty now. We have talked a great deal about lack of forecast confidence in this tricky pattern, but we can say with a pretty high degree of confidence that the arctic front that arrives this weekend will be one of the coldest the region has seen this late in the season in a long time. The huge polar low over St. James Bay will drive air from the upper regions of north central Canada into the Upper High Plains with enough momentum that it will cross the Continental Divide on Friday and bleed into north Idaho and eastern Washington Friday night into Saturday. While brutal wind chills and cold temperatures seem to be a slam dunk with this forecast, forecast confidence is extremely low for snow amounts at this time. There will be a complex collision of arctic air descending from the northeast with moisture arriving from the south on Friday and Saturday. The timing of the Arctic front and the strength of the push of moisture from the south will make or break the snowfall forecast. Since these two key components of the forecast are thousands of miles apart today (and over data sparse regions), a high degree of model variability should be expected. Of the morning model runs, the NAM has been the most dire in it`s prediction of many inches of snow over eastern Washington. The NAM is very aggressive forcing shallow arctic air into Washington while stalling a tight mid-level front in the vicinity of I-90. The majority of the other models including the GFS, ECMWF and Canadian models agree that the better forcing and moisture supply will be over Oregon, southern/central Idaho and Montana. For now, our forecast is for relatively light snow amounts with the most significant accumulations over the central and southern Idaho Panhandle Friday and Saturday. This may change given the complexities of forecasting in a split flow pattern. But for now, the biting north winds and bitterly cold temperatures will be the main headlines for the weekend.