TornadoLiveMap

Conemaugh River at Johnstown — water level right now

Cambria County, Pennsylvania · NWS gauge JHSP1
Loading the latest reading…
–
current stage (ft)
 
28
minor flood stage
 
41.6
record crest
set 1889-05-31
–
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 · 23
minor · 28
moderate · 30
major · 34
Flood stageLevel (ft)What it means
Major flood stage34extensive inundation and significant evacuations — a serious event
Moderate flood stage30some buildings and roads inundated; evacuations possible
Minor flood stage28low-lying roads and fields near the river start to flood
Action stage23water is approaching flood level — time to pay attention

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
141.61889-05-31+13.6 above
2391936-03-18+11 above
3341977-07-20+6 above
430.21924-03-29+2.2 above
525.31996-01-192.7 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

Little Conemaugh River at East Conemaugh 2 mi away · loading… Stonycreek River at Ferndale 4 mi away · loading… Conemaugh River at Seward 8 mi away · loading… Blacklick Creek at Josephine 17 mi away · loading… Two Lick Creek at Graceton 18 mi away · loading… Yellow Creek at Homer City 19 mi away · loading…

Gauge details

NWS gauge IDJHSP1
USGS site03041029
CountyCambria
StatePennsylvania
NWS forecast officeState College
River forecast centerOhio River Forecast Center
Coordinates40.341, -78.926
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 Conemaugh River at Johnstown

Is Conemaugh River at Johnstown 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 28 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for Conemaugh River at Johnstown?

major flood stage 34 ft, moderate flood stage 30 ft, minor flood stage 28 ft, action stage 23 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

What is the record flood at Conemaugh River at Johnstown?

The highest crest on file at this gauge is 41.6 ft, reached on 1889-05-31 — that is 13.6 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 State College and local emergency management.