IEM Daily Feature
Wednesday, 08 September 2010

Peak intensities

Posted: 08 Sep 2010 05:55 AM

The featured graph presents IEM computed peak rainfall accumulations measured over an hour and two hours. The values are actual totals from the ASOS precipitation sensor. Just over a week ago, the Ames sensor reported 3.52 inches of rain over a two hour period. This value is only topped on the chart by Spencer back in 2005. You may notice that the two hour total is no where near doubling the one hour total. In Iowa, the heaviest of rainfall events will only last 30 minutes or so. It takes training of multiple cells to produce these large totals.

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Tags:   2010   precip