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Ohio River at Olmsted Lock and Dam Headwater — water level right now

Pulaski County, Illinois · NWS gauge OLMI2
Loading the latest reading…
–
current stage (ft)
 
36
minor flood stage
 
48.2
record crest
set 2020-02-21
–
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 · 34
minor · 36
moderate · 42
major · 47
Flood stageLevel (ft)What it means
Major flood stage47extensive inundation and significant evacuations — a serious event
Moderate flood stage42some buildings and roads inundated; evacuations possible
Minor flood stage36low-lying roads and fields near the river start to flood
Action stage34water is approaching flood level — time to pay attention

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
148.22020-02-21+12.2 above
244.792022-03-03+8.79 above
343.332021-03-08+7.33 above
442.942025-02-20+6.94 above
539.472023-03-09+3.47 above
638.12022-01-11+2.1 above
737.362024-05-13+1.36 above

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

Ohio River at Cairo 14 mi away · loading… Mississippi River at Thebes 22 mi away · loading… Ohio River at Golconda 34 mi away · loading… Ohio River at Smithland Lock and Dam 35 mi away · loading… Mississippi River above Grand Tower 41 mi away · loading… Big Muddy River at Murphysboro 43 mi away · loading…

Gauge details

NWS gauge IDOLMI2
USGS site03612600
CountyPulaski
StateIllinois
NWS forecast officeWest Paducah
River forecast centerLower Mississippi River Forecast Center
Coordinates37.179, -89.058
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 Ohio River at Olmsted Lock and Dam Headwater

Is Ohio River at Olmsted Lock and Dam Headwater 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 36 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for Ohio River at Olmsted Lock and Dam Headwater?

major flood stage 47 ft, moderate flood stage 42 ft, minor flood stage 36 ft, action stage 34 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

What is the record flood at Ohio River at Olmsted Lock and Dam Headwater?

The highest crest on file at this gauge is 48.2 ft, reached on 2020-02-21 — that is 12.2 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 West Paducah and local emergency management.