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Peak Streamflow for Iowa

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Boating safety tips are available from the U.S. Coast Guard.

NOTE: Station Numbers for Iowa precipitation gages have changed (see list).


USGS 05421740 Wapsipinicon River near Anamosa, IA

Jones County, Iowa
Hydrologic Unit Code 07080103
Latitude  42°05'00.1", Longitude  91°16'02.6" NAD83
Drainage area 1,575  square miles
Gage datum 754.37 feet above NAVD88
Output formats
Table
Graph
Tab-separated file
peakfq (watstore) format
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Water
Year		 Date Gage
Height
(feet)		 Stream-
flow
(cfs)
1968 1968-07-21 22.90 20,0002,7
2003 2003-05-17 13.08 6,990
2004 2004-05-26 22.73 22,000
2005 2005-02-18 10.11 3,760
2006 2006-04-24 11.22 4,760
2007 2007-08-28 16.22 10,900
2008 2008-06-13 26.18 31,800
2009 2009-08-27 17.99 14,000
2010 2010-07-26 23.71 25,700
2011 2011-03-27 13.50 7,500
2012 2012-05-11 8.82 2,770
2013 2013-05-31 21.56 20,500
2014 2014-06-30 18.66 15,200
2015 2015-06-25 11.09 4,990
2016 2016-09-27 22.76 23,100
2017 2017-07-26 18.962 15,7002
2018 2018-09-07 22.82 23,200
2019 2018-10-04 19.51 16,700
2020 2020-06-12 17.37 13,100
2021 2021-09-03 16.96 12,800
2022 2022-06-28 12.32 6,350
2023 2023-03-02 11.67 5,640
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  Peak Gage-Height Qualification Codes.
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  Peak Streamflow Qualification Codes.