Hydrologic Data

Hydrologic Conditions for North Dakota

• Real-Time Stage and Streamflow by Major North Dakota River Basins
  Select real-time data stations by clicking on a basin map.
• 18-Month Hydrographs by Major North Dakota River Basins
  Select 18-month hydrographs by clicking on a basin map.
• Field Measurements of Streamflow and Gage Height
  (formerly called STREAM MEASUREMENTS FOR LAST 18 MONTHS)
• Rating Tables
  The links to text files containing rating tables for U.S. Geological Survey gaging stations in North Dakota are now available on the individual site pages in NWISWeb.
• NWISWeb Streamflow Tutorial
  Tutorial explaining how to perform a surface water retrieval and understand the results
• Real-Time Water-Quality Data for North Dakota
  Temperature and specific conductance for select stations.
• NWISWeb Water-Quality Tutorial
  Tutorial explaining how to perform a water quality retrieval and understand the results.
• Ground-Water Data for North Dakota
  The Ground-Water database contains ground-water site inventory, ground-water level data, and water-quality data.
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• Flood Tracking Charts
• Summary of Devils Lake Data
• Summary of Red River Data
• Summary of Missouri River Data

Annual Water-Data Reports

Water-resources data for North Dakota consists of records of discharge, stage, and water quality for streams; contents, stage, and water quality for lakes and reservoirs; and water levels and water quality for ground-water wells.

Beginning with water year 2006, the Annual Water-Data Report has been changed to an online only system that makes surface-water, ground-water, and water-quality data available for the United States from one location. The new user interface allows users to search for data by state and county, hydrologic unit, and site number. There is also a map-based tool for locating hydrologic data. Click on the "Mapper" link to use the map tool.

• Water Year 2007
• Water-Data Reports from Previous Water Years

A water year is the 12-month period October 1 through September 30. The water year is designated by the calendar year in which it ends and which includes 9 of the 12 months. Thus, the year ending September 30, 2005, is called the 2005 water year.

Hydrologic Conditions for the Nation

• NWISWeb Real-Time Data
  Includes Surface Water - Ground Water - Water Quality
• NWISWeb Tutorial
  This tutorial includes step-by-step guides for the first-time user of the USGS National Water Information System Web site (NWISWeb).
• NWISWeb Fact Sheet
  A short description of the features and benefits of NWISWeb.
• Water Use
  The U.S. Geological Survey's National Water-Use Information Program is responsible for compiling and disseminating the nation's water-use data.
• Drought Watch
  States where average streamflow was below normal during the previous 7 days
• Water Watch
  The flood and high flow map shows the location of streamgages in the United States where the water level is currently at or above flood stage or at high flow.

Current Streamflow Conditions

Map of Flood and High Flow Conditions

Explanation - Percentile Classes
95 - 98	> 99	River above flood stage	Not ranked

Map of Below Normal 7-Day Average Streamflow

Explanation - Percentile Classes
Below Normal	Moderate Hydrologic Drought	Severe Hydrologic Drought	Extreme Hydrologic Drought	Not Ranked
10th-24th percentile	6th-9th percentile	< 5th percentile	New low

Current Streamflow Conditions for the Nation