Current Water Supply Conditions
January 17, 2017
Last week 0.23 inches and 0.20 inches of precipitation were recorded in our Cedar River and South Fork Tolt River watersheds, respectively. Snowpack in the central Cascade Mountains is close to the long-term average for this time of the year.
Chester Morse Lake at the Overflow Dike was at elevation 1548.3 feet, about 1.1 feet lower than last week, and about 2.1feet below its long-term average (based on the years 1989 to 2005). Masonry Pool Reservoir at Masonry Dam was at elevation 1545.0 feet, about 2.0 feet lower than last week, and about 2.2 feet below its long-term average. The South Fork Tolt Reservoir at the South Fork Tolt Dam was at elevation 1753.3 feet, about 0.9 feet lower than last week, and about 0.1 feet above its long-term average. Water releases from reservoir storage are actively being managed for water supply, hydropower, fish habitat and flood management objectives for both the Cedar and South Fork Tolt Rivers.
Water consumption for the previous seven days averaged approximately 103 million gallons per day (mgd). That is less than the 105 mgd consumed during the same period last year, and less than the average of 111 mgd used during the same period over the years 1999-2014.