National Water Center Mapping Interface
Water Information Interface
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The Office of Water Prediction (OWP) National Water Center is now producing water information from our National Water Model (NWM) version 1.1. Information about the NWM output displayed on this map interface can be found in this Product Description Document. More information about the NWM is available at http://water.noaa.gov/about/nwm. As this output is still in its early stages, it does not yet contain information on the anthropogenic effects on streamflow and output should be viewed with caution. The output is undergoing extensive validation and verification to identify where updates to the science model parametrization and configurations can make the most improvements to the model output. The next version of the NWM will be released in the spring 2018 time frame. For official NWS river forecasts please see https://water.weather.gov.
Please note, the mapping interface is a work in progress. In addition to the NWM streamflow information, data layers of 2 snow products from the National Snow Analysis, Snow Depth and Snow Water Equivalent, are also available. The OWP is seeking to improve the availability and quality of its products and services based on user feedback. Comments regarding the Water Information Interface Webpage should be provided through the electronic survey via the link provided below: https://www.nws.noaa.gov/survey/nws-survey.php?code=NWMV1OUTPUT
The OWP also provides a range of NWS official water information through the following web sites.
- River observation and forecast information: https://water.weather.gov/ahps
- Snow Information: https://www.nohrsc.noaa.gov
- Precipitation Frequency Estimates: http://www.nws.noaa.gov/oh/hdsc
Content from the sites above will be migrated to this new site over the next couple of years.
Comments? Questions? Please Contact firstname.lastname@example.org.
By clicking the ‘I understand’ button, the user acknowledges that the NWM v1.1 output is prototype guidance and should not be considered an official NWS river forecast.