StormOps
Grand River Dam Authority storm & river operations. Live basin conditions, lake levels, and forecasts.
Open River Operations →→
River Operations
Live flood status for Neosho Basin gauges. Lake storage percentages, pool elevations, and river stage compared to flood thresholds — updated every 15 minutes.
Live gaugesLake storageBasin map
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Basin Graphs
Time-series charts for lake pool elevation and flood storage over 1, 7, or 30 days. USGS flow graphs and NWS meteograms for inflow and downstream sites.
Pool trendsUSGS flowsNWS meteograms
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Weather
Current conditions and 12-hour hourly forecast from DTN for the Grand Lake area. Temperature, wind, precip probability, and NWS Tulsa decision support links.
DTN forecast12-hourNWS links