The Dalles inflows down 30.3% year on year in June 10-day forecast indicates above-normal temperatures Mid-C on-peak July 582% higher than 2020 package The Dalles Dam water supply forecast has again fallen to the lowest point of the season as summer forwards across the US West continue to set records amid supply concerns and near-term packages trend higher on an upcoming heat wave. Receive daily email alerts, subscriber notes & personalize your experience. Register Now The Dalles water supply forecast was at 83% of normal for the April-September forecast period, down 2 percentage points from a month ago and 22 points below year-ago levels, according to Northwest River Forecast Center data. Likewise, the Shasta Dam water supply forecast was at 42% of normal for the April-July period, according to California Nevada River Forecast Center data. Less expected water supply at dams translates to less hydro generation available to […]