Weak up slope flow associated with the front and shortwave creating snow in the mountains (again) has formed freezing fog and very light snow along I-25. This looks like it will clear around noon. There are no watches or warnings associated with this weather situation. Just don’t slip!
End 9am update.
A very small amount of snow made it to I-25 in Larimer county (not shown) Saturday night, but nothing hit Boulder county. We remain dry today with some warming with a ridge overhead and down-slope flow from the ongoing snow showers on the Western Slopes (Figure 1).
We warm to the 50’s for the middle of the week (Figure 2), then start a good cool down (more on that in the longer range forecast). The GFS (Figure 3) has us completely dry through Thursday AM.
The longer range forecast:
By Friday, after some Thursday PM shower chances, the cool down and change begins (Figure 2 and 3). What starts to occur is an overall trough pattern settling into the west with short wave after short wave moving over the state embedded in the northern branch of the jet stream (Figure 4). Thursday night’s showers are kicked off by the short wave drawn over western Colorado in Figure 4.
After Saturday – there are daily snow chances with high temperatures only rising to the lower 30’s F most days (Figure 2 and 3). The overall trough, with shortwaves, keeps us cool and moist even up to next Tuesday (Figure 5).
Change is coming after Valentines Day. I’ll try to add a heart to the graphical forecast when used this week.