ST. LOUIS – The St. Louis metro area remains in the grip of a disgusting heat wave, with heat index values at least 10 degrees warmer than the thermostat. But relief is in sight!

Beginning Wednesday night, a cold front will make its way to St. Louis to nudge away the heat and lower the humidity. We’ll be looking at a much more comfortable end to the workweek and weekend, with temperatures in the low 80s.

“But wait!” you say. “Shouldn’t a cold front actually feel, you know, cold?” Or maybe you’re one of those types who think a cold front doesn’t count unless the temperature drops below a certain number or you need a windbreaker.

Despite what you may believe, there is a scientific definition for both a cold front and a warm front.

A “cold front” marks the leading edge of a mass of colder

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