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Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: The National Hydrologic Discussion, Area Hydrologic Discussion, and Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via https://www.weather.gov/owp/operations, as described in the StoryMap here.



Hydrograph River at a Glance Download
North Nashua River at Fitchburg Stage (ft)Flow (kcfs)Highest Observation: 3.09 ft at 7:45PM Sep 21, 2023Highest Observation: 3.09 ft at 8:00PM Sep 21, 2023Highest Observation: 3.09 ft at 8:15PM Sep 21, 2023Highest Observation: 3.09 ft at 8:30PM Sep 21, 2023Highest Observation: 3.09 ft at 8:45PM Sep 21, 2023Highest Observation: 3.09 ft at 9:00PM Sep 21, 2023Highest Observation: 3.09 ft at 9:15PM Sep 21, 2023Highest Observation: 3.09 ft at 9:30PM Sep 21, 2023Highest Observation: 3.09 ft at 9:45PM Sep 21, 2023Highest Observation: 3.09 ft at 10:00PM Sep 21, 2023Observed: 3.08 ft at 10:15PM Sep 21, 2023Observed: 3.08 ft at 10:30PM Sep 21, 2023Observed: 3.08 ft at 10:45PM Sep 21, 2023Observed: 3.08 ft at 11:00PM Sep 21, 2023Observed: 3.08 ft at 11:15PM Sep 21, 2023Observed: 3.08 ft at 11:30PM Sep 21, 2023Observed: 3.08 ft at 11:45PM Sep 21, 2023Observed: 3.07 ft at 12:00AM Sep 22, 2023Observed: 3.07 ft at 12:15AM Sep 22, 2023Observed: 3.07 ft at 12:30AM Sep 22, 2023Observed: 3.07 ft at 12:45AM Sep 22, 2023Observed: 3.07 ft at 1:00AM Sep 22, 2023Observed: 3.07 ft at 1:15AM Sep 22, 2023Observed: 3.07 ft at 1:30AM Sep 22, 2023Observed: 3.07 ft at 1:45AM Sep 22, 2023Observed: 3.07 ft at 2:00AM Sep 22, 2023Observed: 3.07 ft at 2:15AM Sep 22, 2023Observed: 3.07 ft at 2:30AM Sep 22, 2023Observed: 3.07 ft at 2:45AM Sep 22, 2023Observed: 3.07 ft at 3:00AM Sep 22, 2023Observed: 3.06 ft at 3:15AM Sep 22, 2023Observed: 3.07 ft at 3:30AM Sep 22, 2023Observed: 3.06 ft at 3:45AM Sep 22, 2023Observed: 3.07 ft at 4:00AM Sep 22, 2023Observed: 3.06 ft at 4:15AM Sep 22, 2023Observed: 3.06 ft at 4:30AM Sep 22, 2023Observed: 3.06 ft at 4:45AM Sep 22, 2023Observed: 3.06 ft at 5:00AM Sep 22, 2023Observed: 3.06 ft at 5:15AM Sep 22, 2023Observed: 3.06 ft at 5:30AM Sep 22, 2023Observed: 3.06 ft at 5:45AM Sep 22, 2023Observed: 3.06 ft at 6:00AM Sep 22, 2023Observed: 3.06 ft at 6:15AM Sep 22, 2023Observed: 3.06 ft at 6:30AM Sep 22, 2023Observed: 3.06 ft at 6:45AM Sep 22, 2023Observed: 3.06 ft at 7:00AM Sep 22, 2023Observed: 3.06 ft at 7:15AM Sep 22, 2023Observed: 3.06 ft at 7:30AM Sep 22, 2023Observed: 3.05 ft at 7:45AM Sep 22, 2023Observed: 3.05 ft at 8:00AM Sep 22, 2023Observed: 3.06 ft at 8:15AM Sep 22, 2023Observed: 3.05 ft at 8:30AM Sep 22, 2023Observed: 3.06 ft at 8:45AM Sep 22, 2023Observed: 3.05 ft at 9:00AM Sep 22, 2023Observed: 3.05 ft at 9:15AM Sep 22, 2023Observed: 3.05 ft at 9:30AM Sep 22, 2023Observed: 3.05 ft at 9:45AM Sep 22, 2023Observed: 3.05 ft at 10:00AM Sep 22, 2023Observed: 3.05 ft at 10:15AM Sep 22, 2023Observed: 3.05 ft at 10:30AM Sep 22, 2023Observed: 3.05 ft at 10:45AM Sep 22, 2023Observed: 3.05 ft at 11:00AM Sep 22, 2023Observed: 3.05 ft at 11:15AM Sep 22, 2023Observed: 3.05 ft at 11:30AM Sep 22, 2023Observed: 3.04 ft at 11:45AM Sep 22, 2023Observed: 3.05 ft at 12:00PM Sep 22, 2023Observed: 3.04 ft at 12:15PM Sep 22, 2023Observed: 3.05 ft at 12:30PM Sep 22, 2023Observed: 3.05 ft at 12:45PM Sep 22, 2023Observed: 3.05 ft at 1:00PM Sep 22, 2023Observed: 3.04 ft at 1:15PM Sep 22, 2023Observed: 3.05 ft at 1:30PM Sep 22, 2023Observed: 3.05 ft at 1:45PM Sep 22, 2023Observed: 3.05 ft at 2:00PM Sep 22, 2023Observed: 3.05 ft at 2:15PM Sep 22, 2023Observed: 3.05 ft at 2:30PM Sep 22, 2023Observed: 3.04 ft at 2:45PM Sep 22, 2023Observed: 3.05 ft at 3:00PM Sep 22, 2023Observed: 3.04 ft at 3:15PM Sep 22, 2023Observed: 3.05 ft at 3:30PM Sep 22, 2023Observed: 3.05 ft at 3:45PM Sep 22, 2023Observed: 3.04 ft at 4:00PM Sep 22, 2023Observed: 3.04 ft at 4:15PM Sep 22, 2023Observed: 3.04 ft at 4:30PM Sep 22, 2023Observed: 3.04 ft at 4:45PM Sep 22, 2023Observed: 3.04 ft at 5:00PM Sep 22, 2023Observed: 3.04 ft at 5:15PM Sep 22, 2023Observed: 3.04 ft at 5:30PM Sep 22, 2023Observed: 3.04 ft at 5:45PM Sep 22, 2023Observed: 3.04 ft at 6:00PM Sep 22, 2023Observed: 3.04 ft at 6:15PM Sep 22, 2023Observed: 3.04 ft at 6:30PM Sep 22, 2023Observed: 3.04 ft at 6:45PM Sep 22, 2023Observed: 3.04 ft at 7:00PM Sep 22, 2023Observed: 3.03 ft at 7:15PM Sep 22, 2023Observed: 3.03 ft at 7:30PM Sep 22, 2023Observed: 3.04 ft at 7:45PM Sep 22, 2023Observed: 3.04 ft at 8:00PM Sep 22, 2023Observed: 3.04 ft at 8:15PM Sep 22, 2023Observed: 3.03 ft at 8:30PM Sep 22, 2023Observed: 3.03 ft at 8:45PM Sep 22, 2023Observed: 3.03 ft at 9:00PM Sep 22, 2023Observed: 3.04 ft at 9:15PM Sep 22, 2023Observed: 3.03 ft at 9:30PM Sep 22, 2023Observed: 3.03 ft at 9:45PM Sep 22, 2023Observed: 3.03 ft at 10:00PM Sep 22, 2023Observed: 3.03 ft at 10:15PM Sep 22, 2023Observed: 3.03 ft at 10:30PM Sep 22, 2023Observed: 3.03 ft at 10:45PM Sep 22, 2023Observed: 3.03 ft at 11:00PM Sep 22, 2023Observed: 3.02 ft at 11:15PM Sep 22, 2023Observed: 3.03 ft at 11:30PM Sep 22, 2023Observed: 3.02 ft at 11:45PM Sep 22, 2023Observed: 3.02 ft at 12:00AM Sep 23, 2023Observed: 3.02 ft at 12:15AM Sep 23, 2023Observed: 3.02 ft at 12:30AM Sep 23, 2023Observed: 3.02 ft at 12:45AM Sep 23, 2023Observed: 3.02 ft at 1:00AM Sep 23, 2023Observed: 3.02 ft at 1:15AM Sep 23, 2023Observed: 3.02 ft at 1:30AM Sep 23, 2023Observed: 3.02 ft at 1:45AM Sep 23, 2023Observed: 3.02 ft at 2:00AM Sep 23, 2023Observed: 3.02 ft at 2:15AM Sep 23, 2023Observed: 3.02 ft at 2:30AM Sep 23, 2023Observed: 3.02 ft at 2:45AM Sep 23, 2023Observed: 3.02 ft at 3:00AM Sep 23, 2023Observed: 3.02 ft at 3:15AM Sep 23, 2023Observed: 3.02 ft at 3:30AM Sep 23, 2023Observed: 3.02 ft at 3:45AM Sep 23, 2023Observed: 3.02 ft at 4:00AM Sep 23, 2023Observed: 3.02 ft at 4:15AM Sep 23, 2023Observed: 3.02 ft at 4:30AM Sep 23, 2023Observed: 3.01 ft at 4:45AM Sep 23, 2023Observed: 3.02 ft at 5:00AM Sep 23, 2023Observed: 3.02 ft at 5:15AM Sep 23, 2023Observed: 3.02 ft at 5:30AM Sep 23, 2023Observed: 3.01 ft at 5:45AM Sep 23, 2023Observed: 3.01 ft at 6:00AM Sep 23, 2023Observed: 3.02 ft at 6:15AM Sep 23, 2023Observed: 3.01 ft at 6:30AM Sep 23, 2023Observed: 3.02 ft at 6:45AM Sep 23, 2023Observed: 3.01 ft at 7:00AM Sep 23, 2023Observed: 3.01 ft at 7:15AM Sep 23, 2023Observed: 3.01 ft at 7:30AM Sep 23, 2023Observed: 3.01 ft at 7:45AM Sep 23, 2023Observed: 3.01 ft at 8:00AM Sep 23, 2023Observed: 3.01 ft at 8:15AM Sep 23, 2023Observed: 3.01 ft at 8:30AM Sep 23, 2023Observed: 3.01 ft at 8:45AM Sep 23, 2023Observed: 3.01 ft at 9:00AM Sep 23, 2023Observed: 3.01 ft at 9:15AM Sep 23, 2023Observed: 3.01 ft at 9:30AM Sep 23, 2023Observed: 3.01 ft at 9:45AM Sep 23, 2023Observed: 3.01 ft at 10:00AM Sep 23, 2023Observed: 3.01 ft at 10:15AM Sep 23, 2023Observed: 3.01 ft at 10:30AM Sep 23, 2023Observed: 3.01 ft at 10:45AM Sep 23, 2023Observed: 3 ft at 11:00AM Sep 23, 2023Observed: 3 ft at 11:15AM Sep 23, 2023Observed: 2.98 ft at 11:30AM Sep 23, 2023Observed: 2.98 ft at 11:45AM Sep 23, 2023Observed: 2.97 ft at 12:00PM Sep 23, 2023Observed: 2.96 ft at 12:15PM Sep 23, 2023Observed: 2.94 ft at 12:30PM Sep 23, 2023Observed: 2.94 ft at 12:45PM Sep 23, 2023Observed: 2.93 ft at 1:00PM Sep 23, 2023Observed: 2.92 ft at 1:15PM Sep 23, 2023Observed: 2.91 ft at 1:30PM Sep 23, 2023Observed: 2.91 ft at 1:45PM Sep 23, 2023Observed: 2.9 ft at 2:00PM Sep 23, 2023Observed: 2.9 ft at 2:15PM Sep 23, 2023Observed: 2.89 ft at 2:30PM Sep 23, 2023Observed: 2.89 ft at 2:45PM Sep 23, 2023Observed: 2.88 ft at 3:00PM Sep 23, 2023Observed: 2.88 ft at 3:15PM Sep 23, 2023Observed: 2.88 ft at 3:30PM Sep 23, 2023Observed: 2.88 ft at 3:45PM Sep 23, 2023Observed: 2.88 ft at 4:00PM Sep 23, 2023Observed: 2.87 ft at 4:15PM Sep 23, 2023Observed: 2.87 ft at 4:30PM Sep 23, 2023Observed: 2.87 ft at 5:45PM Sep 23, 2023Observed: 2.86 ft at 6:00PM Sep 23, 2023Observed: 2.86 ft at 6:15PM Sep 23, 2023Observed: 2.86 ft at 6:30PM Sep 23, 2023Observed: 2.86 ft at 6:45PM Sep 23, 2023Observed: 2.86 ft at 7:00PM Sep 23, 2023Observed: 2.86 ft at 7:15PM Sep 23, 2023Observed: 2.86 ft at 7:30PM Sep 23, 2023Observed: 2.86 ft at 7:45PM Sep 23, 2023Observed: 2.86 ft at 8:00PM Sep 23, 2023Observed: 2.86 ft at 8:15PM Sep 23, 2023Observed: 2.86 ft at 8:30PM Sep 23, 2023Observed: 2.86 ft at 8:45PM Sep 23, 2023Observed: 2.86 ft at 9:00PM Sep 23, 2023Observed: 2.86 ft at 9:15PM Sep 23, 2023Observed: 2.87 ft at 9:30PM Sep 23, 2023Observed: 2.87 ft at 9:45PM Sep 23, 2023Observed: 2.87 ft at 10:00PM Sep 23, 2023Observed: 2.87 ft at 10:15PM Sep 23, 2023Observed: 2.87 ft at 10:30PM Sep 23, 2023Observed: 2.87 ft at 10:45PM Sep 23, 2023Observed: 2.87 ft at 11:00PM Sep 23, 2023Observed: 2.87 ft at 11:15PM Sep 23, 2023Observed: 2.87 ft at 11:30PM Sep 23, 2023Observed: 2.87 ft at 11:45PM Sep 23, 2023Observed: 2.87 ft at 12:00AM Sep 24, 2023Observed: 2.87 ft at 12:15AM Sep 24, 2023Observed: 2.86 ft at 12:30AM Sep 24, 2023Observed: 2.87 ft at 12:45AM Sep 24, 2023Observed: 2.86 ft at 1:00AM Sep 24, 2023Observed: 2.86 ft at 1:15AM Sep 24, 2023Observed: 2.87 ft at 1:30AM Sep 24, 2023Observed: 2.86 ft at 1:45AM Sep 24, 2023Observed: 2.86 ft at 2:00AM Sep 24, 2023Observed: 2.87 ft at 2:15AM Sep 24, 2023Observed: 2.86 ft at 2:30AM Sep 24, 2023Observed: 2.86 ft at 2:45AM Sep 24, 2023Observed: 2.86 ft at 3:00AM Sep 24, 2023Observed: 2.86 ft at 3:15AM Sep 24, 2023Observed: 2.86 ft at 3:30AM Sep 24, 2023Observed: 2.86 ft at 3:45AM Sep 24, 2023Observed: 2.86 ft at 4:00AM Sep 24, 2023Observed: 2.86 ft at 4:15AM Sep 24, 2023Observed: 2.86 ft at 4:30AM Sep 24, 2023Observed: 2.86 ft at 4:45AM Sep 24, 2023Observed: 2.86 ft at 5:00AM Sep 24, 2023Observed: 2.86 ft at 5:15AM Sep 24, 2023Observed: 2.86 ft at 5:30AM Sep 24, 2023Observed: 2.86 ft at 5:45AM Sep 24, 2023Observed: 2.86 ft at 6:00AM Sep 24, 2023Observed: 2.86 ft at 6:15AM Sep 24, 2023Observed: 2.86 ft at 6:30AM Sep 24, 2023Observed: 2.86 ft at 6:45AM Sep 24, 2023Observed: 2.86 ft at 7:00AM Sep 24, 2023Observed: 2.86 ft at 7:15AM Sep 24, 2023Observed: 2.86 ft at 7:30AM Sep 24, 2023Observed: 2.86 ft at 7:45AM Sep 24, 2023Observed: 2.86 ft at 8:00AM Sep 24, 2023Observed: 2.86 ft at 8:15AM Sep 24, 2023Observed: 2.86 ft at 8:30AM Sep 24, 2023Observed: 2.86 ft at 8:45AM Sep 24, 2023Observed: 2.86 ft at 9:00AM Sep 24, 2023Observed: 2.86 ft at 9:15AM Sep 24, 2023Observed: 2.86 ft at 9:30AM Sep 24, 2023Observed: 2.86 ft at 9:45AM Sep 24, 2023Observed: 2.86 ft at 10:00AM Sep 24, 2023Observed: 2.86 ft at 10:15AM Sep 24, 2023Observed: 2.86 ft at 10:30AM Sep 24, 2023Observed: 2.86 ft at 10:45AM Sep 24, 2023Observed: 2.85 ft at 11:00AM Sep 24, 2023Observed: 2.86 ft at 11:15AM Sep 24, 2023Observed: 2.85 ft at 11:30AM Sep 24, 2023Observed: 2.86 ft at 11:45AM Sep 24, 2023Observed: 2.86 ft at 12:00PM Sep 24, 2023Observed: 2.86 ft at 12:15PM Sep 24, 2023Observed: 2.86 ft at 12:30PM Sep 24, 2023Observed: 2.85 ft at 12:45PM Sep 24, 2023Observed: 2.86 ft at 1:00PM Sep 24, 2023Observed: 2.86 ft at 1:15PM Sep 24, 2023Observed: 2.86 ft at 1:30PM Sep 24, 2023Observed: 2.86 ft at 1:45PM Sep 24, 2023Observed: 2.86 ft at 2:00PM Sep 24, 2023Observed: 2.86 ft at 2:15PM Sep 24, 2023Observed: 2.86 ft at 2:30PM Sep 24, 2023Observed: 2.86 ft at 2:45PM Sep 24, 2023Observed: 2.86 ft at 3:00PM Sep 24, 2023Observed: 2.86 ft at 3:15PM Sep 24, 2023Observed: 2.86 ft at 3:30PM Sep 24, 2023Observed: 2.86 ft at 3:45PM Sep 24, 2023Observed: 2.86 ft at 4:00PM Sep 24, 2023Observed: 2.86 ft at 4:15PM Sep 24, 2023Observed: 2.86 ft at 4:30PM Sep 24, 2023Observed: 2.86 ft at 4:45PM Sep 24, 2023Observed: 2.86 ft at 5:00PM Sep 24, 2023Observed: 2.87 ft at 5:15PM Sep 24, 2023Observed: 2.88 ft at 5:30PM Sep 24, 2023Observed: 2.9 ft at 5:45PM Sep 24, 2023Observed: 2.89 ft at 6:00PM Sep 24, 2023Observed: 2.9 ft at 6:15PM Sep 24, 2023Observed: 2.91 ft at 6:30PM Sep 24, 2023Highest Forecast: 2.9 ft 8:00PM Sep 24, 2023Highest Forecast: 2.9 ft 2:00AM Sep 25, 2023Highest Forecast: 2.9 ft 8:00AM Sep 25, 2023Highest Forecast: 2.9 ft 2:00PM Sep 25, 2023Highest Forecast: 2.9 ft 8:00PM Sep 25, 2023Forecast: 2.8 ft 2:00AM Sep 26, 2023Forecast: 2.8 ft 8:00AM Sep 26, 2023Forecast: 2.8 ft 2:00PM Sep 26, 2023Forecast: 2.8 ft 8:00PM Sep 26, 2023Forecast: 2.8 ft 2:00AM Sep 27, 2023Forecast: 2.8 ft 8:00AM Sep 27, 2023USGS--Water Resources of the United StatesFBGM3(plotting HGIRG) Graph Created (7:30PM Sep 24, 2023)ObservedForecast (issued 11:30AM Sep 24)Latest observed value: 2.91 ft at 6:30 PM EDT 24-Sep-2023. Flood Stage is 6.5 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Forecasts for the North Nashua River at Fitchburg are issued routinely year-round.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 10
Moderate Flood Stage: 8
Flood Stage: 6.5
Action Stage: 5
Low Stage (in feet): -9999

Historic Crests
(1) 9.25 ft on 04/05/1987
(2) 8.59 ft on 04/16/2007
(3) 8.02 ft on 03/07/2011
(4) 7.99 ft on 03/15/2010
(5) 7.92 ft on 10/30/2017
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 6.54 ft on 12/23/2022
(2) 6.69 ft on 02/04/2022
(3) 6.87 ft on 01/25/2019
(4) 7.18 ft on 09/18/2018
(5) 7.92 ft on 10/30/2017
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
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
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.
About This Location Collapse

Latitude: 42.576201° N, Longitude: 71.788128° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 6.5 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 394.13 400.63 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other NULL NULL  

Current/Historical Observations:

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
10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.

Resources Collapse
Hydrologic Resources Additional Resources
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
Boston / Norton Weather Forecast Office
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Norton, MA 02766
(508) 622-3250
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Page last modified: 2-Nov-2020 7:30 PM
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