Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left
Navigation Bar End Cap

  
 

This probabilistic forecast is issued by the Middle Atlantic River Forecast Center.
tab left off Hydrograph tab right off tab left off River at a Glance tab right off tab left off Download tab right off tab left on tab right on
About this graph
Forecasts for the Tioga River at Tioga Junction are issued routinely year-round.
Return to Area Map

Downstream Gauge Downstream Gauge - at Lindley
Zoom Level:16
Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 17
Flood Stage: 15
Action Stage: 13
Low Stage (in feet): 0

Historic Crests
(1) 22.12 ft on 09/25/1975
(2) 17.20 ft on 01/26/1978
(3) 16.70 ft on 05/14/1978
(4) 16.70 ft on 02/25/1977
(5) 16.45 ft on 11/05/1977
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 15.33 ft on 09/17/2004
(2) 14.68 ft on 01/19/1996
(3) 13.34 ft on 08/21/1994
(4) 15.42 ft on 08/18/1994
(5) 16.70 ft on 05/14/1978
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
KML Image
Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
27 Flood waters begin to reach the Park Street Bridge in Tioga.
22.1 Flood of record from September 1975.
20 Widespread 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 FEMA 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 Flood waters begin to reach the Mechanic Street Bridge in Lawrenceville.
17 The 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 The 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 FEMA 2% Annual Chance Flood Level (50-year flood).
13 FEMA 10% Annunal Chance Flood Level (10-year flood).

Other Real-time and/or Archive Data Sources:

Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
3 Day (SREF) 7 Day (NAEFS) 7 Day (GEFS)
SREF Ensemble NAEFS Ensemble  GEFS Ensemble 

Note: Use the official hydrograph at the top of this web page for river levels within the next 48 hours.

See the Product Description Document link for more details on the interpretation of the 3,7 day graphics. 

Click individual graphics to enlarge.

Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
State College Weather Forecast Office
328 Innovation Boulevard, Suite 330
State College, PA 16803
(814) 231-2408
Ask Questions/Webmaster
Page last modified: 5-Mar-2019 11:43 PM
Disclaimer
Credits
Glossary
Privacy Policy
About Us
Career Opportunities