A flash flood watch is in effect for Archuleta County and the Southwest San Juan Mountains through Tuesday evening.
According to the National Weather Service, scattered to numerous thunderstorms with heavy rain are expected over the area continuing through this evening. With a moist air mass in place, the threat for heavy rainfall will continue into the overnight hours.
Another round of afternoon thunderstorms is expected on Tuesday afternoon lasting through midnight Wednesday.
Flash flooding due to heavy rainfall is possible, especially over already saturated soils and areas of steep terrain. Steep canyons, burn scars and normally dry streams, washes and arroyos are most susceptible to flash flooding. Water can rise quickly downstream of heavy rain, even when a thunderstorm is miles away. Rock and mud slides, and high water flowing across roads, are also possible which could impact travel.
A flash flood watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should be prepared to take action.