Hydrograph for Lackawanna River at Old Forge, PA

The following data is preliminary. Record information will be updated once the data has been checked.

The data shown here is a snapshot of what the river stage was during the flooding event. For the latest stages, river forecasts and other information about this site, go to the Advanced Hydrologic Prediction Service page.

What is a hydrograph? This type of graph shows how the river level changes over time at a specific location. River level or stage is in feet and on the left side of the hydrograph.

Times on the graphic are in Z time in a military or 24 hour time format. What is Z time?

Flood stage is 11 feet. Max stage on this graph is 13.39 feet, shown near the top part of the hydrograph.

Key: The purple line shows the level of a Major flood. The blue line shows the level of a Moderate flood. The red line shows flood stage.

Historical Crests (1) 20.05 ft on 1955/08/19 (2) 17.00 ft on 1934/07/28 (3) 16.70 ft on 2004/09/18 (4) 16.49 ft on 1985/09/27 (5) 15.58 ft on 1996/01/19 Low Water Records (1) 1.3 ft on 1964/09/ 21 (1) 1.3 ft on 1963/07/ 16 (3) 1.6 ft on 1957/09/ 1 (3) 1.6 ft on 1971/07/ 23 (5) 1.7 ft on 1972/09/ 11

Impacts

• 16.0 MAJOR FLOODING BEGINS. MANY HOMES AND BUSINESSES BEGIN TO BE AFFECTED AT THIS LEVEL.
• 13.0 MODERATE FLOODING BEGINS. WATER BEGINS TO AFFECT SOME HOMES AND BUSINESSES ON BOTH SIDES OF THE RIVER.
• 11.0 MINOR FLOODING BEGINS. SOME ROADWAYS NEAR THE LACKAWANNA RIVER IN OLD FORGE AND MOOSIC BEGIN TO BE AFFECTED.