Rivers in Pennsylvania

Youghiogheny River at Confluence

Somerset County, PennsylvaniaNWS CNFP1USGS 03081000State College office

Below flood stage
4.02ftStage

Observed Tue, Sep 22, 4:45 AM EDT

Flood stage
12.00 ft
Forecast crest
5.70 ftWed, Sep 23, 2:00 AM EDT
Record crest
21.60 ft1936

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood17.00 ft
Moderate flood14.00 ft
Minor flood12.00 ft
Action7.00 ft
  1. 20.00 ftOver half of the town of confluence would be affected by flood waters prior to the construction of the flood control structures.
  2. 18.00 ftFlood waters cover Route 281 just downstream of the bridge over the Youghiogheny.
  3. 16.00 ftSignificant flooding is expected on the Youghiogheny River in the vicintiy of confluence. Areas adjacent to the river which are not protected by flood control structures are inundated.
  4. 14.00 ftState Route 3003 is closed due to high water. High water covers the road about one tenth of a mile downstream of the confluence of the Casselman and Youghiogheny Rivers.
  5. 12.00 ftThe right bank of the river overflows downstream of confluence and about 1/4 mile upstream from the gaging station.
  6. 7.00 ftThe Youghiogheny Reservoir is expected to begin curtailing releases due to high water downstream of the dam. River interests are encouraged to monitor conditions in their vicinity and to be prepared if further rises occur.

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor floodingUnder 5%
Moderate floodingUnder 5%
Major floodingUnder 5%

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 15, 2026.

Crest history

19 crests on NOAA’s list since 1936.

#DateStage
1March 17, 193621.60 ft
2October 15, 195419.92 ft
3January 19, 199617.62 ft
4September 10, 201813.13 ft
5September 14, 197113.08 ft
6April 3, 202412.88 ft
7February 16, 201812.62 ft
8March 6, 196712.37 ft
9March 29, 200512.35 ft
10August 7, 200012.30 ft
11December 30, 194212.17 ft
12March 1, 202112.09 ft
13September 18, 200412.00 ft
14April 5, 198411.96 ft
15March 30, 196011.91 ft
16June 23, 197211.89 ft
17November 27, 198511.80 ft
18April 2, 197011.80 ft
19February 5, 198610.80 ft

Most recent crests

  • April 3, 2024: 12.88 ft
  • March 1, 2021: 12.09 ft
  • September 10, 2018: 13.13 ft
  • February 16, 2018: 12.62 ft
  • March 29, 2005: 12.35 ft
  • September 18, 2004: 12.00 ft
  • August 7, 2000: 12.30 ft
  • January 19, 1996: 17.62 ft
  • February 5, 1986: 10.80 ft
  • November 27, 1985: 11.80 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Ohio River Forecast Center. Forecasts are issued routinely year-round. Stage may be affected by ice.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.