For the past number of weeks, analyzed D4 drought classification (the most intense level) has been just off to Iowa's west in Nebraska. This week's update is due out later this morning and will be interesting to see if D4 has made it into Iowa. Having D4 drought in Iowa is extremely rare as shown by the featured map presenting a raster analysis of number of weeks spent at D4 classification since the inception of the drought monitor in 2000. Only the most extreme portion of far northwestern Iowa and a sliver of Iowa's southern border have seen D4. It seems possible that D4 could eventually creep further into northwestern Iowa than in previous years with dry weather expected to persist into early winter.

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Tags:   drought