(AP) - A wave of Record heat and sticky, humid air enveloped the eastern third of the nation Monday, wilting people who had to be outside and shifting air conditioners into electricity-sucking overdrive. The air "feels like a warm, wet blanket," said Amanda Finley, 22, in Charlotte, N.C. The National Weather Service posted heat advisories from the Mississippi Valley all the way to the East Coast, warning that the combination of humidity and high temperatures would create heat indexes of up to 110 and more. It was the third advisory day in a row for Chicago.