Cold and Snow!

Above is an image of the day 6 GFS ensembles and ensemble mean from the PSU e-wall site.

What does it show? It shows that the least impressive scenario is cold and dry (highs in the 30s, lows in the 20s for Portland). The most impressive scenario? Very cold and snowy (several inches of snow, highs in the upper 20s, lows in the 10s). And you thought this was November!

Some of the ensemble members would give us a white Thanksgiving, with snow falling in the Sunday-Tuesday timeframe, and then dry and cold thereafter (the 12z GFS even hinted at another possible low sliding down the coast and spinning in a little more moisture on Wednesday/Thursday).


So what does it all mean? We're gonna get cold. And we'll probably at least see a little snow. The details are still not settled, but at this point it's safe to say my mid-late November "Arctic outbreak" is a go! ^_^