Tioga River at Tioga Junction, PA

River level and flood forecast · Tioga County

Normal6.9 ftas of Mon 3 PM

The river is 8.1 ft below flood stage (15 ft).

Forecast to hold near 6.9 ft through Thu, Oct 15, 2 PM.

Flow: 108 cubic feet per second (USGS).

The last 7 days and the forecast

5101520TueThuSatMonWedAction 13 ftFlood 15 ftModerate 17 ftMajor 20 ftNowObserved (ft)NWS forecast

NWS forecast issued Mon, Oct 12, 2:48 PM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Major flood stage20 ft
Moderate flood stage17 ft
Flood stage15 ft
Action stage13 ft
Record crest (September 25, 1975)22.12 ft

What floods at each level

From the National Weather Service, highest first.

  • 27 ftFlood waters begin to reach the Park Street Bridge in Tioga.
  • 22.1 ftFlood of record from September 1975.
  • 20 ftWidespread flooding occurs on both bankds. Much of Tioga Junction is affected by high water. A number of roads are closed. Flood waters begin to reach the Route 287 bridge on the northh side of Tioga.
  • 18.5 ftFEMA 0.2% Annual Chance Flood Level (500-year flood). Flood waters begin to reach the Junction Cross Road Bridge near Williamson High School.
  • 17.5 ftFlood waters begin to reach the Mechanic Street Bridge in Lawrenceville.
  • 17 ftThe right, or east bank overflows. A number of homes on both banks are affected. Several roads are closed. Flood waters begin to reach the Main Street Bridge in Lawrenceville.
  • 15 ftThe left, or west bank overflows, closing a couple of roads. A few homes are affected. FEMA 1% Annual Chance Flood Level (50-year flood).
  • 13.5 ftFEMA 2% Annual Chance Flood Level (50-year flood).
  • 13 ftFEMA 10% Annunal Chance Flood Level (10-year flood).

Highest crests on record

  1. 22.12 ft — September 25, 1975
  2. 17.2 ft — January 26, 1978
  3. 16.7 ft — February 25, 1977
  4. 16.7 ft — May 14, 1978
  5. 16.45 ft — November 5, 1977

Recent crests: 15.33 ft (September 17, 2004) · 14.68000030517578 ft (January 19, 1996) · 13.34 ft (August 21, 1994) · 15.42 ft (August 18, 1994) · 16.7 ft (May 14, 1978)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (TGJP1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.