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Des Moines, Iowa – A broad warming trend is expected to expand across Iowa as February transitions into March, increasing the probability that winter’s most persistent Arctic air becomes less dominant statewide during the Feb. 28 through Mar. 13 timeframe.
According to the National Weather Service Climate Prediction Center, Iowa carries a 33% to 50% probability of above-normal temperatures in the Week 3-4 outlook. That warmer signal stretches from Interstate 29 in western Iowa through the Interstate 80 corridor and north along Interstate 35 toward Mason City and the Minnesota border…