At 49C you need a dewpoint of almost 70 (!!) to get 20% relative humidity. thats nasty -- during the heatwave in portland the dewpoint was between 63-68 most da

At 49C you need a dewpoint of almost 70 (!!) to get 20% relative humidity. thats nasty -- during the heatwave in portland the dewpoint was between 63-68 most days. Usually its ~55. For context, the dewpoint on the east coast during the storm season usually is between 70-75.