(Portland, OR)  --  The death toll from the Pacific Northwest's historic heat wave continues to climb.  The Oregon State Medical Examiner reports 63 deaths may be related to the heat wave throughout the state.  That number may change as investigations continue.  The Portland area had the most deaths at 45, followed by nine in Marion County, five in Washington County, two in Clackamas County and one each in Columbia and Umatilla counties.