State average rainfall for the two weeks of June 5 through June 17 was 4.01 inches, but the story is the extreme amounts of rainfall some areas received. Rock Rapids had 12 inches, with other parts of northwest Iowa not far behind that total. Stream flows in the area are much above normal, with several locations on the Rock River and at Perry Creek near Millnerville at record flows.
Shallow groundwater is about normal for most of the state, but in northwest Iowa an accurate assessment of the impact of the recent rainfall will take a couple of weeks to determine, especially in areas where wells are located a distance from rivers.
Eighty percent of Iowa is now out of any drought condition, with 6 percent in moderate drought and 14 percent experiencing abnormal dryness.
For a more thorough review of Iowa’s water resource trends June 5 through June 18, go to http://www.iowadnr.gov/watersummaryupdate.
The report is prepared by the technical staff from the Iowa DNR, the Iowa Department of Agriculture and Land Stewardship, IIHR—Hydroscience and Engineering and the U.S. Geological Survey, in collaboration with The Iowa Homeland Security and Emergency Management Department.
For more information contact Tim Hall at (515) 281-8169, Tim.Hall@dnr.iowa.gov