SLCESPCO National Weather Service Colorado Basin River Forecast Center Salt Lake City, Utah July 16, 2018 San Juan Basin Special Forecast Group July mid-month Forecasts Seasonal and Monthly forecasts Forecast volumes in thousands of acre-feet (KAF) Exceedance probabilities in percent Rio Blanco FORECAST OBSERVED 90% 50% 10% Apr May Jun Apr-Jul 21.0 21.0 22.0 7.7 10.0 2.7 Navajo-Chromo FORECAST OBSERVED 90% 50% 10% Apr May Jun Apr-Jul 27.0 27.0 28.0 7.6 13.1 4.5 Little Navajo-Chromo FORECAST OBSERVED 90% 50% 10% Apr May Jun Apr-Jul 1.7 1.8 1.9 0.9 0.7 0.1 Jul 0.0 0.1 0.2 Aug 0.1 0.2 0.3 Sep 0.1 0.1 0.4 Vallecito Reservoir FORECAST OBSERVED 90% 50% 10% Apr May Jun Apr-Jul 61.0 62.0 65.0 14.9 29.0 11.7 Jul 5.0 6.0 9.0 Aug 4.0 6.0 14.0 Sep 4.0 7.0 18.0 Navajo Reservoir FORECAST OBSERVED 90% 50% 10% Apr May Jun Apr-Jul 164.0 165.0 172.0 70.0 88.0 5.8 Jul 0.0 1.0 8.0 Aug 1.0 10.0 25.0 Sep 8.0 13.0 24.0 Animas-Durango FORECAST OBSERVED 90% 50% 10% Apr May Jun Apr-Jul 113.0 114.0 119.0 16.0 56.0 30.0 Jul 11.0 12.0 17.0 Aug 8.0 12.0 24.0 Sep 7.0 13.0 33.0 Lemon Reservoir FORECAST OBSERVED 90% 50% 10% Apr May Jun Apr-Jul 13.7 14.0 15.0 3.1 7.5 2.3 Jul 0.8 1.1 2.1 Aug 0.5 1.5 4.0 Sep 0.5 1.5 4.0