Web services > Minnesota--Isanti County > 2025-present

National Water Model Maximum Flow (10 Day Forecast) []

Esri · 2025 Full Details

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Title
National Water Model Maximum Flow (10 Day Forecast) []
Description
The National Water Model provides forecasts of flow volume and velocity for over 2.7 million stream and river segments in the contiguous United States and is the National Weather Service's primary tool for predicting river flooding. Two versions of the National Water Model are available in ArcGIS Living Atlas: a short-term model that updates every hour for 18-hrs, and a medium-range model that updates every 6-hrs for a 10-day outlook. This layer provides a summary of the 10-day forecast and adds calculated fields such as flow anomaly, maximum anomaly, and the time at maximum flow. It has been filtered to display only areas with positive flow anomalies (i.e., flooding). Leveraging ArcGIS Online hosted feature services, it is ideal for doing spatial and time queries, use in Dashboards, and supporting a variety of custom symbology. By default, this layer is showing the maximum expected flow for each river segment since the 10-day model is ideal for providing a more synoptic understanding of potential flooding. Companion Layer National Water Model Maximum Flow (Hourly Forecast) Related Layers National Water Model (10-Day Forecast) National Water Model (10-Day Anomaly Forecast) National Water Model (Hourly Forecast) National Water Model (Hourly Anomaly Forecast) Revisions Jan 27, 2022 : Added 'Forecast Origin' field. Providing the Origin Date/Time of the Forecast Set
Creator
Esri
Temporal Coverage
Last Modified: 2025-10-18
Date Issued
2021-12-18
Rights
This work is licensed under the Esri Master License Agreement. View Summary , View Terms of Use
Access Rights
Public
Format
ArcGIS FeatureLayer
Language
English
Date Added
October 19, 2025
Provenance Statement
The metadata for this resource was last retrieved from Isanti County Geospatial Hub on 2025-10-18.

Links

Cite and Reference

  • Citation
    Esri (2021). National Water Model Maximum Flow (10 Day Forecast) []. . https://open-data-pottcounty.hub.arcgis.com/datasets/esri2::national-water-model-maximum-flow-10-day-forecast (web service)
  • BTAA Geoportal Link

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