USGS Ohio Water Science Center




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Daily Streamflow Conditions

Click map to view current
streamflow conditions.

Real-time streamflow data for Ohio


[color code for] High
[color code for] > 90th percentile
[color code for] 75th - 89th percentile
[color code for] 25th - 74th percentile
[color code for] 10th - 24th percentile
[color code for] < 10th percentile
[color code for] Low
[color code for] Not ranked

The colored dots on this map depict streamflow conditions as a percentile, which is computed from the period of record for the current day of the year. Only stations with at least 30 years of record are used.  The gray circles indicate other stations that were not ranked in percentiles either because they have fewer than 30 years of record or because they report parameters other than streamflow. Some stations, for example, measure stage only.


NWISWeb -- obtain real-time and historic streamflow, groundwater, and water-quality data.


Contact Us

Ohio Water Resources Council
Ohio Water Resources Council

Links for educators and students

Regional Workshops and Seminars
Guest Lecture Series
  • "The Historical, Climatic and Socioeconomic Context for U.S. Megadrought"
    Dr. Julio L. Betancourt USGS, Desert Laboratory, Tucson, Arizona, Monday, April 26, 2004

  • Previous Guest Lecturers (MS Word file)

Alphabetical Index of Links


USGS Volunteer for a Changing World 

The Government Volunteer Website 



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