Wyoming set for Late Summer Mountain Snowstorm

Roger Pielke Sr. passes this on to me with the note: Hi Anthony, This is quite unusual! Source: NWS, Riverton, WY URGENT – WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 309 AM MDT SAT AUG 15 2009 …LATE SUMMER SNOWSTORM EXPECTED FOR THE BIG HORN MOUNTAINS TODAY… .AN UNSEASONABLY EARLY SNOWSTORM IS EXPECTED TO…