Observed flow volumes within the Sevier Lake Basin varied from below average to near or slightly above average for the April-July period. Early season snowpack between January and March was near to above average in many locations, falling to below average conditions in April and May. Forecasts tended to parallel snowpack conditions as forecasts issued in February indicated higher runoff volumes expected than those forecasts issued in April and May which were reduced as the snowpack conditions fell below average.

Observed data in the Sevier Lake Basin is typically limited due to amount of diversions and timelag in calculating natural flow, however initial values for a few sites fell within the 10% and 90% exceedance boundaries of the forecasts. Early season forecasts tended to overshoot the observed volumes while late season forecasts were near or below the observed volumes.