SLCESPCO National Weather Service Colorado Basin River Forecast Center Salt Lake City, Utah September 16, 2019 San Juan Basin Special Forecast Group September Mid Month Forecasts Monthly forecasts for 2019 Forecast volumes in thousands of acre-feet (KAF) Exceedance probabilities in percent. Animas - Durango FORECAST 90% 50% 10% Sep 19.0 23.0 32.0 Oct 19.0 26.0 37.0 Nov 17.0 21.0 26.0