TornadoLiveMap

South Fork Whetstone River near Milbank — water level right now

Grant County, South Dakota · NWS gauge SWMS2
Loading the latest reading…
–
current stage (ft)
 
1113
minor flood stage
 
–
flood status
official NWS category
Official NOAA forecast → Full US flood map →

Flood stages at this gauge

Where the water stands right now against the four official thresholds:

action · 1110
minor · 1113
moderate · 1115
major · 1117
Flood stageLevel (ft)What it means
Major flood stage1117extensive inundation and significant evacuations — a serious event
Moderate flood stage1115some buildings and roads inundated; evacuations possible
Minor flood stage1113low-lying roads and fields near the river start to flood
Action stage1110water is approaching flood level — time to pay attention

Highest floods on record here

The National Weather Service has no historic crest list on file for this gauge.

Where this gauge is

The marker is this gauge; nearby gauges load live and are clickable.

Nearby river gauges

North Fork Whetstone River near Milbank 4 mi away · loading… Whetstone River above Big Stone City 6 mi away · loading… North Fork Yellow Bank River near Milbank 7 mi away · loading… Big Sioux River near Florence 28 mi away · loading… Mud Creek near Rauville 28 mi away · loading… Little Minnesota River near Peever 29 mi away · loading…

Gauge details

NWS gauge IDSWMS2
CountyGrant
StateSouth Dakota
NWS forecast officeAberdeen
River forecast centerNorth Central River Forecast Center
Coordinates45.233, -96.619
Time zoneCST6CDT
Turn Around, Don't Drown. Six inches of moving water can knock you off your feet and twelve inches can float a car. Never drive around barricades or into water of unknown depth — most flood deaths happen in vehicles.

Questions about South Fork Whetstone River near Milbank

Is South Fork Whetstone River near Milbank flooding right now?

The live reading at the top of this page answers that: the gauge is compared against its official NWS flood stages every 15 minutes. Minor flooding at this gauge begins at 1113 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for South Fork Whetstone River near Milbank?

major flood stage 1117 ft, moderate flood stage 1115 ft, minor flood stage 1113 ft, action stage 1110 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

Where does this data come from?

From the NOAA National Water Prediction Service, the official U.S. river gauge network — a U.S. government work in the public domain. Live stage is refreshed every 15 minutes; flood thresholds and historic crests are refreshed monthly. For life-safety decisions follow NWS Aberdeen and local emergency management.