TornadoLiveMap

Tugalo River at YONAH DAM — water level right now

Stephens County, Georgia · NWS gauge YNHG1
Loading the latest reading…
–
current stage (ft)
 
748
minor flood stage
 
748.7
record crest
set 1900-01-01
–
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 · 744.2
minor · 748
moderate · 754
major · 758
Flood stageLevel (ft)What it means
Major flood stage758extensive inundation and significant evacuations — a serious event
Moderate flood stage754some buildings and roads inundated; evacuations possible
Minor flood stage748low-lying roads and fields near the river start to flood
Action stage744.2water is approaching flood level — time to pay attention

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
1748.71900-01-01+0.7 above
2746.472018-05-301.53 below
3744.842015-12-303.16 below

Historic crests recorded at this gauge by the National Weather Service — the 12 highest on file.

Where this gauge is

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

Nearby river gauges

Tallulah River at TUGALO DAM 3 mi away · loading… Tallulah River above TALLULAH FALLS PWR HOUSE 4 mi away · loading… Tallulah River at TALLULAH FALLS DAM 6 mi away · loading… Tallulah River at MATHIS-TERRORA DAM 8 mi away · loading… Chattooga River at Hwy 76 9 mi away · loading… Tallulah River at NACOOCHEE DAM 11 mi away · loading…

Gauge details

NWS gauge IDYNHG1
CountyStephens
StateGeorgia
NWS forecast officeGreer
River forecast centerSoutheast River Forecast Center
Coordinates34.68, -83.33
Time zoneEST5EDT
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 Tugalo River at YONAH DAM

Is Tugalo River at YONAH DAM 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 748 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for Tugalo River at YONAH DAM?

major flood stage 758 ft, moderate flood stage 754 ft, minor flood stage 748 ft, action stage 744.2 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

What is the record flood at Tugalo River at YONAH DAM?

The highest crest on file at this gauge is 748.7 ft, reached on 1900-01-01 — that is 0.7 ft above minor flood stage. The full list of the highest crests is in the table on this page.

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 Greer and local emergency management.