South Dakota FloodWatch
| This map shows the location of streamgages in South Dakota and color codes them based on the current river stage compared to the National Weather Service flood stage. Green markers represent gages below flood stage or where a flood stage is not defined. Yellow markers are for streamgages above the National Weather Service flood stage. Red markers are presented for streamgages that are at a National Weather Service moderate flood stage and purple markers are presented for streamgages that are at the National Weather Service major flood stage.
South Dakota FloodWatch
Flood Information
Flood Links
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Map of South Dakota Streamgages
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Marker for USGS Streamgage Sites
Marker for USGS Streamgage Sites above National Weather Service Flood Stage. NOTE: Not all streamgage sites have a defined flood stage.
Marker for USGS Streamgage Sites above National Weather Service Moderate Flood Stage.
Marker for USGS Streamgage Sites above National Weather Service Major Flood Stage.
Rainfall Calculator
All the water in floods comes from the sky—but have you ever wondered just how many gallons of water falls on an area when it rains? You might be surprised at how much water comes down. Use our Water Science rainfall calculator to see how many gallons of water falls from the sky during a rainstorm.
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