Susquehanna River at Unadilla
Critical Stages
9' - Action
11' - Flood
13' - Moderate
14.5' - Major
Latest Observation
Updated: 4:00 AM EST 12/8/25
Status: No Flooding
Stage: 3.72 ft
Flow: 0.942 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 7 AM 12/8 | 3.6 | 0.842 |
| 1 PM 12/8 | 3.6 | 0.842 |
| 7 PM 12/8 | 3.6 | 0.842 |
| 1 AM 12/9 | 3.6 | 0.842 |
| 7 AM 12/9 | 3.6 | 0.842 |
| 1 PM 12/9 | 3.6 | 0.842 |
| 7 PM 12/9 | 3.6 | 0.842 |
| 1 AM 12/10 | 3.6 | 0.842 |
| 7 AM 12/10 | 3.6 | 0.842 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 5:00 AM 12/8 | 3.68 | 0.908 |
| 4:45 AM 12/8 | 3.7 | 0.925 |
| 4:30 AM 12/8 | 3.7 | 0.925 |
| 4:15 AM 12/8 | 3.72 | 0.942 |
| 4:00 AM 12/8 | 3.72 | 0.942 |
| 3:45 AM 12/8 | 3.74 | 0.959 |
| 3:30 AM 12/8 | 3.75 | 0.968 |
| 3:15 AM 12/8 | 3.76 | 0.977 |
| 3:00 AM 12/8 | 3.78 | 0.994 |
| 2:45 AM 12/8 | 3.79 | 1 |
| 2:30 AM 12/8 | 3.8 | 1.01 |
| 2:15 AM 12/8 | 3.81 | 1.02 |
| 2:00 AM 12/8 | 3.82 | 1.03 |
| 1:45 AM 12/8 | 3.84 | 1.05 |
| 1:30 AM 12/8 | 3.85 | 1.06 |
| 1:15 AM 12/8 | 3.86 | 1.07 |
| 1:00 AM 12/8 | 3.87 | 1.08 |
| 12:45 AM 12/8 | 3.88 | 1.09 |
| 12:30 AM 12/8 | 3.89 | 1.1 |
| 12:15 AM 12/8 | 3.9 | 1.1 |
| 12:00 AM 12/8 | 3.9 | 1.1 |
| 11:45 PM 12/7 | 3.92 | 1.12 |
| 11:30 PM 12/7 | 3.93 | 1.13 |
| 11:15 PM 12/7 | 3.94 | 1.14 |
| 11:00 PM 12/7 | 3.95 | 1.15 |
| 10:45 PM 12/7 | 3.97 | 1.17 |
| 10:30 PM 12/7 | 3.98 | 1.18 |
| 10:15 PM 12/7 | 3.99 | 1.19 |
| 10:00 PM 12/7 | 4.01 | 1.21 |
| 9:45 PM 12/7 | 4.02 | 1.22 |
17.7' -
This was the record flood of June 2006. Deep flooding was widespread and severe throughout Unadilla.
17' -
The water treatment building and Grand Street in Sidney are inundated.
16.3' -
Widespread severe flooding caused by the September 2011 flood.
16' -
Severe flooding occurs throughout most of the Village of Unadilla as water spreads toward Railroad Street. Route 7 flooded in many areas.
14.5' -
Major flood stage. Several locations in Unadilla on the south side of Main Street are flooded. Water crosses Route 7 near Hopkins Street and floods homes to the north.
13' -
Moderate flood stage. Basement flooding and some first floor dwellings between Main Street and River Road are affected by flooding. This includes properties on Hopkins, Church, Dart and Mill Street.
11' -
Minor flooding begins to impact fields and some properties in Unadilla between Main Street and River Road.
| Date | Stage (ft) |
|---|---|
| Jun 29, 2006 | 17.72 |
| Mar 18, 1936 | 16.6 |
| Sep 9, 2011 | 16.34 |
| Jul 8, 1935 | 16 |
| Mar 14, 1977 | 14.64 |
| Apr 4, 1960 | 14.25 |
| Jan 19, 1996 | 14.24 |
| Oct 18, 1977 | 14.13 |
| Dec 30, 1942 | 13.94 |
| Mar 6, 1979 | 13.9 |
| Sep 22, 1938 | 13.76 |
| Apr 3, 2005 | 13.68 |
| Jan 10, 1998 | 13.6 |
| Mar 31, 1940 | 13.54 |
| Mar 31, 1993 | 13.49 |
| Jan 22, 1959 | 13.42 |
| Mar 16, 1986 | 13.18 |
| Mar 22, 1948 | 13.18 |
| Mar 6, 1964 | 13.17 |
| Apr 2, 1962 | 12.83 |
Data provided by the National Weather Service.
