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In Brief:
The heavy storms have moved out. The cool down has begun. Repeated cool fronts will keep us chilly (50'sF and 60'sF for highs ) this weekend and next week. Rain chances are small through the rest of the weekend but pick up again Sunday night with another cool front. Monday into Tuesday looks like a very wet period with over an inch of rainfall. Tuesday AM has the best chance for snow near I-25 locations.
Forecast Discussion:
If there are some storm reports in the morning (hail, damaging winds, or tornadoes), I'll update this site. There are fronts and low pressure systems wandering around the state this weekend (Figure 1). We have a cool weekend ahead with some rain chances now and then - but a front coming Sunday will increase rain chances Sunday PM
The Longer Range Forecast:
Front after outflow boundary after front will move across the state as we cool to highs only in the lower 50'sF Monday/Tuesday. The best rain totals will occur these days too- with ~1.40 inches of rainfall just these two days. The weatherunderground.com model gives us about 1.90 inches of rain up through Thursday. (Figure 2)
The GFS goes a bit crazy (which we should expect by now) with 2.50 inches of water before midday Thursday (Figure 3). The mountains get a foot or more of snow at higher elevations and a measurable amount of snow hits Ft. Collins, Lyons, Boulder, western Denver, and the Palmer Divide this week.
