From The Fort Collins Coloradoan (Kevin Duggan):
It was a Monday. The day felt sodden and clammy after heavy rain in the foothills and around town the night before. The ground, which had been baked hard by weeks of hot, dry weather, was saturated.
There were rain showers of varying intensity throughout the day, especially on the west side of the city and around Laporte, but the rain really started to come down around 5 p.m.
It continued for hours, coming in pounding waves. Water ran fast and deep in the streets while lakes formed in unexpected places in the darkness…
If you didn’t live near the creek or the CSU campus, you might not have realized anything happened.