Flash Flood Watch issued September 19 at 9:31AM MDT until September 20 at 9:00AM MDT by NWS

.Thunderstorms are expected to develop Wednesday evening and continue through Thursday morning. This thunderstorm activity will have the potential to produce high rainfall rates, and rapid accumulation of rainfall in a short period of time. Total rainfall accumulations of 1 to 3 inches will be possible by Thursday morning with localized rainfall amounts above 3 inches possible.