Issue Date: Friday, August 27th, 2021
Issue Time: 10:10 AM MDT
Summary:
Thursday morning kicked off with a lingering line of thunderstorms along the I-76 corridor. Storm movement was generally eastward, rotating around the high-pressure system to the southeast before lifting and dissipating in the late morning. At the same time, there were early morning showers in the Northwest Slope, Southwest Slope and Grand Valley, which filled in as the morning progressed along the eastward progression of a trough located west of the state.
By afternoon, scattered thunderstorms developed in the high elevations of the Northern, Central, Front Range, and Southeast Mountains, before spilling over onto the Urban Corridor and Palmer Ridge and then eventually the Eastern Plains. Storms on the plains were strong enough to warrant severe thunderstorm warnings for high winds and large hail: 61 mph winds were reported in Burlington, Flagler and Siebert reported between 0.25-1.00-inch hail, and a funnel cloud was seen by local law enforcement in the area.
High winds were also reported with lines of afternoon thunderstorms on the Northwest Slope, which included small hail as storms fired along the trough axis. Eastward movement continued into the evening and overnight hours with light showers, but high winds were still present – including social media reports of downed trees in Fort Collins.
By the early morning hours, all showers and thunderstorms had dissipated. Overall much of Colorado saw measurable precipitation yesterday, but limited moisture prevented large accumulations and limited flood potential. Two of the highest rainfall totals across the state yesterday include:
- 0.60 in Sterling, CoCoRAHS
- 0.60 in Aguilar, APRSWXNET
No flooding was reported on Thursday. For rainfall estimates in your area, check out the State Precipitation Map below.