The weekly update to the US Drought Monitor was just released and shows an improving situation over much of the state. The featured chart presents an IEM calculated metric showing the smoothed weekly improvement (blue) or degradation (red) in the areal coverage over Iowa. The unit measure of one in this chart would represent the areal change over the area of Iowa of one drought category. The big rainfall on Sunday put a dent in the drought and the big rainfalls of yesterday and today will be reflected in the next week's drought monitor update. The weekly update considers rainfall up until about 7 AM of the Tuesday morning of the given week's update.

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Tags:   usdm