On June 4, the National Oceanic and Atmospheric Administration’s Northwest River Forecast Center (NWRFC) released its final Pacific Northwest water supply projection for the 2020 water year, which runs from October 2019 to September 2020. The forecast shows above-average water supply in the northern half of the Columbia River Basin and below-average supply in the southern half, the opposite of last year’s forecast. The below-average supply in the southern half could reduce electricity available from hydropower in the lower Columbia River Basin this summer.
