Rivers in Pennsylvania
Loyalsock Creek at Loyalsockville
Below flood stage
1.28ftStage
Observed Mon, Sep 28, 5:30 AM EDT
- Flood stage
- 12.00 ft
- Forecast crest
- 1.70 ftMon, Sep 28, 8:00 AM EDT
- Record crest
- 19.78 ft2011
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 14.00 ft |
| Moderate flood | 13.00 ft |
| Minor flood | 12.00 ft |
| Action | 9.00 ft |
- 28.00 ftFlood waters begin to reach the Route 973 Bridge in Loyalsocksville.
- 20.50 ftApproximate level of the FEMA 0.2% Annual Chance Flood level (500-year flood).
- 19.80 ftFlood of record from Tropical Storm Lee in 2011.
- 17.00 ftApproximate level of the FEMA 0.2% Annual Chance Flood level (500-year flood).
- 16.00 ftApproximate level of the FEMA 1% Annual Chance Flood level (100-year flood).
- 14.00 ftNumerous homes adjacent to the creek are affected by high water levels.
- 13.00 ftApproximate level of the FEMA 10% Annual Chance Flood level (10-year flood). Several homes and the Loyalsock Game Farm are affected by high water levels.
- 12.00 ftSeveral residences are affected by high water levels. Mill Street in Montoursville is flooded by Loyalsock Creek.
- 11.00 ftHigh water prevents access to several homes adjacent to the creek.
- 9.00 ftResidents living adjacent to the creek are encouraged to monitor water levels for additional rises. The driveways of several homes are affected by high water.
- 8.00 ftWater is on the bike path under Green Bridge at Montoursville.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 13% |
| Moderate flooding | 11% |
| Major flooding | 7% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.
Crest history
17 crests on NOAA’s list since 1926.
| # | Date | Stage |
|---|---|---|
| 1 | September 8, 2011 | 19.78 ft |
| 2 | January 19, 1996 | 17.93 ft |
| 3 | September 18, 2004 | 15.24 ft |
| 4 | June 23, 1972 | 14.74 ft |
| 5 | September 26, 1975 | 14.50 ft |
| 6 | December 25, 2020 | 12.45 ft |
| 7 | February 1, 1982 | 12.45 ft |
| 8 | March 11, 2011 | 12.42 ft |
| 9 | August 29, 1988 | 12.41 ft |
| 10 | November 26, 1950 | 12.32 ft |
| 11 | May 28, 1946 | 12.20 ft |
| 12 | November 16, 1926 | 12.20 ft |
| 13 | August 24, 1933 | 12.20 ft |
| 14 | January 27, 1996 | 12.18 ft |
| 15 | December 14, 1983 | 12.18 ft |
| 16 | October 21, 2016 | 12.03 ft |
| 17 | August 18, 1994 | 11.28 ft |
Most recent crests
- December 25, 2020: 12.45 ft
- October 21, 2016: 12.03 ft
- September 8, 2011: 19.78 ft
- March 11, 2011: 12.42 ft
- September 18, 2004: 15.24 ft
- January 27, 1996: 12.18 ft
- January 19, 1996: 17.93 ft
- August 18, 1994: 11.28 ft
- August 29, 1988: 12.41 ft
- December 14, 1983: 12.18 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Middle Atlantic River Forecast Center. Forecasts are issued routinely year-round. Gauge reading may be affected by ice. Forecast flows are unadjusted for 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.