IEM Daily Feature
Thursday, 19 July 2018

Departures since May 1

Posted: 19 Jul 2018 05:35 AM

The featured map presents the combination of last week's US Drought Monitor and percent of average accumulations since 1 May based on Oregon State PRISM estimates. The driest areas of the state remain in far southeastern Iowa, but other portions of the state show up dry with this analysis as well. The US Drought Monitor considers precipitation departures over different short and longer term periods along with actual hydrological impacts, so you won't see an exact overlap between the depiction and a departure map like this one. There are chances of rain in the forecast and the dry areas certainly need the rain. With another week of dry weather, this area will likely see some degradation with the drought monitor analysis.

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