Precipitation was average to much above average during April in the Upper Colorado. Concurrently, cooler temperatures, particularly in the early part of the month, delayed snowmelt. Both factors contributed to an increase in snowpack as a percent of average from April to May 1. Runoff volume forecasts have increased approximately 5 to 10 percent from those issued April 1.
April-July streamflow forecasts for the Upper Colorado Mainstem are as follows: