March and April were very dry in the Virgin River Basin. April precipitation, similar to March, was generally less than 30 percent of average. Despite an above average snowpack earlier in the spring, the dry conditions contributed to monthly streamflow volumes for March and April that never exceeded 70 percent of average. Snowpack conditions as of May 1st are near 70 percent of average, however the snow that remains is limited in extent and exists at highest elevations. May through July runoff volumes are expected to range from 60 to 70 percent of average.

Apr-Jul runoff volumes below average are expected in the Virgin River Basin.

Differences between the full period forecasts and the residual forecasts may not exactly equal the actual observed volumes due to rounding conventions (see Definitions section).