SLCESPCO National Weather Service Colorado Basin River Forecast Center Salt Lake City, Utah August 15, 2018 San Juan Basin Special Forecast Group Mid-August Forecasts Monthly forecasts for 2018 Forecast volumes in thousands of acre-feet (KAF) Exceedance probabilities in percent. Animas - Durango FORECAST 90% 50% 10% Aug 7.0 8.5 13.0 Sep 6.0 10.0 19.0 Oct 5.0 10.0 22.0