In Brief:
Fairly hot weather with afternoon thunderstorms is the rule except for a brief cool down and increase in storm chances Friday.
Forecast Discussion:
Some atmospheric moisture is sitting around Colorado this week. Daytime heating will kick off afternoon storms in the mountains and eastward (Figure 1 in the gallery). Northwest flow aloft will allow surprise enhancement of these storms to near severe levels at times (Figure 2) as small (hard to observe in advance) ripples in the flow can create more instability and lift if timed correctly. We do return to the lower 90'sF Wednesday and Thursday as the upper level ridge axis inches back towards Colorado (Figure 3 and 2).
Note, with northwest flow, the smoke from Arizona wildfires has been pushed FAR to the south (Figure 7) - whew!
The Longer Range Forecast:
Later this week, the trough out west makes a run to the east (Figure 5) bringing in a brief chance in the weather (cooler!) Thursday PM through Saturday AM (Figure 3). A fair amount of moisture gets pulled in by this system by Thursday PM into Friday AM (Figure 4). Between the daily afternoon storms and the enhanced storminess Friday, the GFS gives us 1/2 to 3/4th of an inch of rain over the next 5 days (Figure 6). Not great but not bad.
The Video Forecast for the week beginning June 24th, 2020
