Know the Flow! Water activities and races on the Uncompahgre River at Ridgway RiverFest will depend on how high or low the flow is. We cannot predict the exact flows but we'll share the daily flows in cubic feet per second with you as recorded at noon every day from now until June 27! For reference on how low this year's flows are, the flows were 298 cfs on June 27, 2025, and 1,380 cfs on June 28, 2024.