SLCESPCO National Weather Service Colorado Basin River Forecast Center Salt Lake City, Utah August 1, 2017 San Juan Basin Special Forecast Group August Final Forecasts Seasonal and Monthly forecasts for 2017 Forecast volumes in thousands of acre-feet (KAF) Exceedance probabilities in percent. Animas - Durango FORECAST 90% 50% 10% Aug 26.0 35.0 46.0 Sep 19.0 29.0 50.0 Oct 15.0 26.0 43.0