The Dalles Dam water supply forecast has dropped to its lowest point since December 2020 as inflows sit well below the three-year average, with the weather forecast showing below-normal precipitation and power forwards trending as much as 136% higher than a year earlier. Receive daily email alerts, subscriber notes & personalize your experience. Register Now The Dallas water supply forecast is at 91% of normal for the April-September forecast period, down 5 percentage points from the end of February , according to Northwest River Forecast Center data. The forecast reached a high of 108% in November 2020. “March was dry and as a result precipitation was down with the volume forecast was down,” hydrometeorologist Ryan Lucas said during the April 1 […]