IEM Daily Feature
Friday, 07 October 2011

Deficits and Surpluses

Posted: 07 Oct 2011 06:04 AM

The last year in Iowa has been dry for most, but is the first dry year in the last 5 or so. The featured chart looks at the accumulated precipitation departure from today back the given number of days for Ames. Over the last 365 days, the departure is around 5 inches below average. If one looks at longer periods, the deficit quickly becomes a surplus over the past 3 years with departures around 20 inches on the wet side of average! There is a bit of rain in the forecast, but the heaviest totals will fall to our southwest where they need it the most.

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