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4:00 AM Update
Main lift is moving into southern Colorado this morning as the upper-level low approaches. There are three main lifting mechanisms: 1) Diffluence aloft. The air spreading out in the mid and upper-levels of the atmosphere pull air upward from lower levels. 2) “Overrunning.” The southwest flow aloft is running up and over the cold front surface, acting like a ramp of lift in the vertical. 3) Surface upslope. Wind from the east at the surface is pushing into the mountains and physically pushes the air upward on the terrain.

This combination brings the best window for accumulating snow across the viewing area through 11 am.