The Colorado River Basin Mid Term Operations Probabilistic Model (MTOPM) processes a monthly ensemble forecast from the Colorado Basin River Forecasting Center and simulates operations in the entire Colorado River Basin to forecast and quantify the uncertainty of the future state of the system. This model has been created to extend the capabilities of the 24 Month Study Model that is the current mid-term operational forecasting model. MTOPM provides stakeholders and managers in the basin with probabilistic information about the following 60+ months, which greatly extends the effectiveness of the modeling for decision support. This presentation will highlight some of the recent improvements to the MTOPM modeling system as well as the enhancements to RiverWare that MTOPM utilizes. The first enhancement that will be covered is the use of run cycles to solve the basin downstream more efficiently. Also the use of MRM and Excel output dmi’s will be presented, and how the system has now been designed to be flexible both in the number of runs and in the length of the runs. Output from large MRM runs and other new features will also be presented.

Click HERE for a PDF version of the presentation slides.