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Forecast discussion:
The winds of change, change again. The trough in the West gets reinforced with some new cold air. We cool from upper 30'sF to right around 30F (not THAT much of a drop). Precipitation chances start to increase midday and become more meaningful after midnight tonight (Figure 1).
The 7! Timer model has the most likely period of snow running from 11pm to midnight Friday into Saturday (Figure 2).
At the surface, this is another juicy storm that is moving into the desert southwest. Most of its moisture will be gone, again, by the time it gets over the continental divide (Figure 3 and 4).
The GFS shows another foot to a foot and a half of snow piling up in the drought stricken southwestern mountains and a coating to 1 inch falling in Longmont by the end of the weekend (Figure 5). The NAM needs to be watched though, it drops about 4-6 inches in town (Figure 6) - that is an outlier. I'm not getting my big shovel out yet. Even weatherunderground (Figure 2 again) shows a coating to, maybe up to 2 inches out of this storm for us.
The longer range forecast:
We return to the 40'sF for the weekend with no big system on the horizon into next week. Not warm and not cold - we'll be close to normal temperature-wise.