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How do fronts behave?

Researchers at NSSL consider basic weather features, including how fronts behave. As an example of "unusual" frontal behavior, in a field project in Utah, scientists looked at a front in strong vertical wind shear moving into a region with dry air at the ground. As precipitation fell from the upper levels ahead of the front, it evaporated and cooled the air. Eventually, the air ahead of the front became colder than the air at the leading edge of the front.