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Snow & strong wind with a cold front in Colorado on 10/20. Then tropical remnants move through the 4-Corners 10/23-10/24. We’re still on Atmospheric River watch on/after 10/24 through early November with 2-3 surges.
Best odds of snow:
CO: 10/20, 10/23-10/24, 10/26-10/27
UT: Late 10/22-10/23, 10/25-10/27
WY: 10/20, 10/25-10/27
MT: 10/25-10/27
IBC: 10/20-10/21, 10/24-10/26