Tioga River at Tioga Junction, PA
River level and flood forecast · Tioga County
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
NWS forecast issued Mon, Oct 12, 2:48 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 20 ft |
| Moderate flood stage | 17 ft |
| Flood stage | 15 ft |
| Action stage | 13 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
- 22.12 ft — September 25, 1975
- 17.2 ft — January 26, 1978
- 16.7 ft — February 25, 1977
- 16.7 ft — May 14, 1978
- 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.