SLCESPCO National Weather Service Colorado Basin River Forecast Center Salt Lake City, Utah September 16, 2015 San Juan Basin Special Forecast Group September Mid-Month Forecasts Seasonal and Monthly forecasts for 2015 Forecast volumes in thousands of acre-feet (KAF) Exceedance probabilities in percent. Animas - Durango FORECAST 90% 50% 10% Sep 17.0 18.0 34.0 Oct 14.0 20.0 32.0 Nov 13.0 16.0 22.0