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Illinois River near Henry — water level right now

Marshall County, Illinois · NWS gauge HNYI2
Loading the latest reading…
–
current stage (ft)
 
23
minor flood stage
 
32.94
record crest
set 2013-04-22
–
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 · 22
minor · 23
moderate · 24
major · 31
Flood stageLevel (ft)What it means
Major flood stage31extensive inundation and significant evacuations — a serious event
Moderate flood stage24some buildings and roads inundated; evacuations possible
Minor flood stage23low-lying roads and fields near the river start to flood
Action stage22water is approaching flood level — time to pay attention

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
132.942013-04-22+9.94 above
232.671979-03-22+9.67 above
332.21943-05-23+9.2 above
432.021985-03-07+9.02 above
531.622020-05-21+8.62 above
631.492009-03-13+8.49 above
731.352019-05-06+8.35 above
831.251985-03-05+8.25 above
930.982008-09-19+7.98 above
1030.741982-03-22+7.74 above
1130.71982-12-08+7.7 above
1230.561997-03-02+7.56 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

Big Bureau Creek at Princeton 19 mi away · loading… Illinois River near La Salle 20 mi away · loading… Vermilion River (N-IL) near Leonore 23 mi away · loading… Illinois River at Starved Rock Lock (tailwater) 24 mi away · loading… Illinois River at Peoria 30 mi away · loading… Illinois River at Ottawa 31 mi away · loading…

Gauge details

NWS gauge IDHNYI2
USGS site05558300
CountyMarshall
StateIllinois
NWS forecast officeLincoln
River forecast centerNorth Central River Forecast Center
Coordinates41.107, -89.356
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 Illinois River near Henry

Is Illinois River near Henry 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 23 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for Illinois River near Henry?

major flood stage 31 ft, moderate flood stage 24 ft, minor flood stage 23 ft, action stage 22 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

What is the record flood at Illinois River near Henry?

The highest crest on file at this gauge is 32.94 ft, reached on 2013-04-22 — that is 9.94 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 Lincoln and local emergency management.