The month of October has been fairly tolerable across the Upper Midwest, but late this week, a high amplitude upper level trough developed over the lee of the Rockies. Low pressure developed in the southern High Plains and worked its way towards the North, and then by Thursday, it arrived in South Dakota. There was a broad swath of rain on the back end of the low, which is unpleasant enough, but also, the circulating trough brought in colder air. That meant cold rain in Rapid City yesterday, which was well anticipated but still nasty for residents. The most accurate bearers of bad news were The Weather Service, Weatherbug and WeatherNation. A trio at the top!
Actuals: Wednesday – High 60, Low 37
Thursday – .51 inches of rain, High 58, Low 35