A rain storm dumped more than 2 inches of rainfall on parts of the Treasure Valley, triggering a mudslide and leading to localized flooding.
Nearly half of an inch of rain fell on the Boise Airport on Tuesday night, while parts of the foothills saw more than 2 inches, a meteorologist from the National Weather Service told the Idaho Statesman.
The downpour also caused a mudslide that closed a portion of Highway 21 from Grandjean to Banner Summit, according to the Idaho Transportation Department…