7:25 AM, Friday, September 30, 2016
At 7AM there were some showers moving eastward across the Front Range region and are likely to make a few places wet during the morning. Although drier air and some sun is likely to move in behind the showers, the level of atmospheric moisture today suggests that more showers or a thundershower are likely to redevelop later this afternoon or evening.
Saturday through Monday are looking mainly dry and warmer than average across Colorado and Wyoming. Although there may still be enough moisture around Saturday to trigger an isolated shower, it should overall be a nice weekend for outdoor activity.
The next cold front is due to sweep across the area around Tuesday bringing cooler weather and some rain and snow along and west of the continental divide. It doesn’t look like it will produce much if any precipitation for the Front Range urban corridor, but we can’t completely rule it out yet.
The autumn equinox is tomorrow (Thursday) at 8:21 AM MDT. Expect this coming weekend to be much cooler than last weekend, with a scattering of showers possible in the mountains.
A Pacific cold front should be moving east through western Colorado early Friday, and probably through the Front Range region late Friday. A brief burst of rain and squally winds may accompany the cold front, but a widespread significant rain is not expected. Above treeline a light accumulation of snow may whiten some mountaintops.
Saturday and Sunday are likely to be mainly dry, but because of cold air in the upper atmosphere I can’t rule out a brief shower in the afternoon, especially in high elevations where it could be snow or graupel. And for those who don’t know, graupel is small snow pellets that form in convective clouds, fairly common in the mountains in summer and early autumn.
12:15 PM, Thursday, September 8, 2016
It has been a while since I blogged due in part to the lack of major weather locally. Dry weather is likely to continue statewide through the weekend. The only spice in the forecast will be some moderate swings in temperature. A cold front Friday will likely send temperatures to slightly below average Friday through Saturday morning. (The average high temperature this time of year for Denver and Boulder is mid to upper 70s.) By Sunday temperatures should be above average again ahead of another cold front on Monday. We can hold out hope that the change on Monday will bring some rain, but at this point the chance for widespread measurable rain on Monday is looking very small.
Meteorological summer (June-July-August) was drier than average for almost all of the Denver-Boulder-Fort Collins corridor (Colorado Springs was wetter). So if you are enjoying the outdoors this weekend, remember to be very careful with fire!