TornadoLiveMap

Great Miami River at Dayton — water level right now

Montgomery County, Ohio · NWS gauge DTNO1
Loading the latest reading…
–
current stage (ft)
 
41
minor flood stage
 
36
record crest
set 1959-01-22
–
flood status
official NWS category
Official NOAA forecast → USGS data → Full US flood map →

Flood stages at this gauge

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

action · 29.5
minor · 41
moderate · 44
major · 48
Flood stageLevel (ft)What it means
Major flood stage48extensive inundation and significant evacuations — a serious event
Moderate flood stage44some buildings and roads inundated; evacuations possible
Minor flood stage41low-lying roads and fields near the river start to flood
Action stage29.5water is approaching flood level — time to pay attention

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
1361959-01-225 below
235.41929-02-275.6 below
335.212013-12-235.79 below
434.332005-01-076.67 below
534.21937-01-226.8 below
6341933-05-147 below
733.71963-03-067.3 below
833.242025-04-067.76 below
933.11990-12-317.9 below
10331958-06-148 below
1132.712003-07-108.29 below
1232.51975-02-248.5 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

Mad River near Dayton 6 mi away · loading… Great Miami River near Taylorsville 8 mi away · loading… Stillwater River above Englewood 9 mi away · loading… Great Miami River at Miamisburg 10 mi away · loading… Little Miami River near Oldtown 14 mi away · loading… Twin Creek near Germantown 14 mi away · loading…

Gauge details

NWS gauge IDDTNO1
USGS site03270500
CountyMontgomery
StateOhio
NWS forecast officeWilmington
River forecast centerOhio River Forecast Center
Coordinates39.765, -84.197
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 Great Miami River at Dayton

Is Great Miami River at Dayton 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 41 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for Great Miami River at Dayton?

major flood stage 48 ft, moderate flood stage 44 ft, minor flood stage 41 ft, action stage 29.5 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

What is the record flood at Great Miami River at Dayton?

The highest crest on file at this gauge is 36 ft, reached on 1959-01-22 — that is -5 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 Wilmington and local emergency management.