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North Nashua River at Fitchburg
Critical Stages
5' - Action
6.5' - Flood
8' - Moderate
10' - Major
Latest Observation
Updated: 8:30 PM EST 12/5/25
Status: No Flooding
Stage: 2.42 ft
Flow: 0.033 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 1 AM 12/6 | 2.3 | 0.022 |
| 7 AM 12/6 | 2.3 | 0.022 |
| 1 PM 12/6 | 2.3 | 0.022 |
| 7 PM 12/6 | 2.3 | 0.022 |
| 1 AM 12/7 | 2.3 | 0.022 |
| 7 AM 12/7 | 2.3 | 0.022 |
| 1 PM 12/7 | 2.3 | 0.022 |
| 7 PM 12/7 | 2.3 | 0.022 |
| 1 AM 12/8 | 2.3 | 0.022 |
| 7 AM 12/8 | 2.3 | 0.022 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 9:30 PM 12/5 | 2.43 | 0.034 |
| 9:15 PM 12/5 | 2.43 | 0.034 |
| 9:00 PM 12/5 | 2.42 | 0.033 |
| 8:45 PM 12/5 | 2.42 | 0.033 |
| 8:30 PM 12/5 | 2.42 | 0.033 |
| 8:15 PM 12/5 | 2.41 | 0.032 |
| 8:00 PM 12/5 | 2.41 | 0.032 |
| 7:45 PM 12/5 | 2.41 | 0.032 |
| 7:30 PM 12/5 | 2.41 | 0.032 |
| 7:15 PM 12/5 | 2.4 | 0.031 |
| 7:00 PM 12/5 | 2.4 | 0.031 |
| 6:45 PM 12/5 | 2.4 | 0.031 |
| 6:30 PM 12/5 | 2.4 | 0.031 |
| 6:15 PM 12/5 | 2.39 | 0.03 |
| 6:00 PM 12/5 | 2.39 | 0.03 |
| 5:45 PM 12/5 | 2.39 | 0.03 |
| 5:30 PM 12/5 | 2.4 | 0.031 |
| 5:15 PM 12/5 | 2.4 | 0.031 |
| 5:00 PM 12/5 | 2.41 | 0.032 |
| 4:45 PM 12/5 | 2.42 | 0.033 |
| 4:30 PM 12/5 | 2.43 | 0.034 |
| 4:15 PM 12/5 | 2.43 | 0.034 |
| 4:00 PM 12/5 | 2.43 | 0.034 |
| 3:45 PM 12/5 | 2.43 | 0.034 |
| 3:30 PM 12/5 | 2.43 | 0.034 |
| 3:15 PM 12/5 | 2.43 | 0.034 |
| 3:00 PM 12/5 | 2.44 | 0.0351 |
| 2:45 PM 12/5 | 2.44 | 0.0351 |
| 2:30 PM 12/5 | 2.44 | 0.0351 |
| 2:15 PM 12/5 | 2.45 | 0.0361 |
10' -
Significant flooding occurs along portions of the North Nashua River from Fitchburg downstream through Lancaster. In Fitchburg, flood waters reach low lying railroad bridges, and impacts occur at businesses near the junction of River and Depot Streets. Flood waters may cause erosion of the Westminster Street embankment in spots between Wachusett and Temple Streets. Overtopping of the dike along Commercial Road in Leominster may occur.
9' -
Flooding occurs in low lying areas along the river. Businesses near the junction of River and Depot streets in Fitchburg are impacted. Flood waters also approach low railroad bridges in Downtown Fitchburg.
8' -
Flooding of low lying areas along the river can be expected from Fitchburg downstream into Lancaster. Flooding affects businesses near the junction of River and Depot Streets in Fitchburg.
7' -
Flooding of low lying areas along the river can be expected. Flooding encroaches on businesses near the junction of River and Depot streets in Fitchburg.
| Date | Stage (ft) |
|---|---|
| Apr 5, 1987 | 9.25 |
| Apr 16, 2007 | 8.59 |
| Mar 7, 2011 | 8.02 |
| Mar 15, 2010 | 7.99 |
| Oct 30, 2017 | 7.92 |
| Apr 16, 1996 | 7.59 |
| Apr 2, 2004 | 7.59 |
| Apr 3, 2005 | 7.53 |
| Feb 26, 2010 | 7.34 |
| Mar 9, 1998 | 7.32 |
| Sep 18, 2018 | 7.18 |
| Aug 19, 1991 | 7.07 |
| Oct 15, 2005 | 7.05 |
| Apr 5, 1984 | 7.02 |
| Oct 20, 1989 | 6.91 |
| Oct 21, 1996 | 6.91 |
| Dec 18, 2023 | 6.91 |
| Jan 25, 2019 | 6.87 |
| Mar 30, 1993 | 6.73 |
| Sep 7, 2008 | 6.72 |
Data provided by the National Weather Service.