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Weather Forecast Office Boston, MA Northeast River Forecast Center
Flood Advisory
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Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Nashua River at East Pepperell Stage (ft)Flow (kcfs)Observed: 1.41 ft at 8:00PM May 20, 2013Observed: 1.37 ft at 8:15PM May 20, 2013Observed: 1.39 ft at 8:30PM May 20, 2013Observed: 1.39 ft at 8:45PM May 20, 2013Observed: 1.41 ft at 9:00PM May 20, 2013Observed: 1.41 ft at 9:15PM May 20, 2013Observed: 1.4 ft at 9:30PM May 20, 2013Observed: 1.41 ft at 9:45PM May 20, 2013Observed: 1.41 ft at 10:00PM May 20, 2013Observed: 1.41 ft at 10:15PM May 20, 2013Observed: 1.41 ft at 10:30PM May 20, 2013Observed: 1.42 ft at 10:45PM May 20, 2013Observed: 1.42 ft at 11:00PM May 20, 2013Observed: 1.42 ft at 11:15PM May 20, 2013Observed: 1.41 ft at 11:30PM May 20, 2013Observed: 1.41 ft at 11:45PM May 20, 2013Observed: 1.41 ft at 12:00AM May 21, 2013Observed: 1.43 ft at 12:15AM May 21, 2013Observed: 1.42 ft at 12:30AM May 21, 2013Observed: 1.42 ft at 12:45AM May 21, 2013Observed: 1.42 ft at 1:00AM May 21, 2013Observed: 1.41 ft at 1:15AM May 21, 2013Observed: 1.43 ft at 1:30AM May 21, 2013Observed: 1.44 ft at 1:45AM May 21, 2013Observed: 1.43 ft at 2:00AM May 21, 2013Observed: 1.41 ft at 2:15AM May 21, 2013Observed: 1.41 ft at 2:30AM May 21, 2013Observed: 1.45 ft at 2:45AM May 21, 2013Observed: 1.45 ft at 3:00AM May 21, 2013Observed: 1.43 ft at 3:15AM May 21, 2013Observed: 1.43 ft at 3:16AM May 21, 2013Observed: 1.41 ft at 3:30AM May 21, 2013Observed: 1.43 ft at 3:45AM May 21, 2013Observed: 1.42 ft at 4:00AM May 21, 2013Observed: 1.43 ft at 4:15AM May 21, 2013Observed: 1.42 ft at 4:30AM May 21, 2013Observed: 1.42 ft at 4:45AM May 21, 2013Observed: 1.43 ft at 5:00AM May 21, 2013Observed: 1.39 ft at 5:15AM May 21, 2013Observed: 1.4 ft at 5:30AM May 21, 2013Observed: 1.38 ft at 5:45AM May 21, 2013Observed: 1.32 ft at 6:00AM May 21, 2013Observed: 1.3 ft at 6:15AM May 21, 2013Observed: 1.29 ft at 6:30AM May 21, 2013Observed: 1.28 ft at 6:45AM May 21, 2013Observed: 1.13 ft at 7:00AM May 21, 2013Observed: 0.56 ft at 7:15AM May 21, 2013Observed: 0.53 ft at 7:30AM May 21, 2013Observed: 0.53 ft at 7:45AM May 21, 2013Observed: 0.53 ft at 8:00AM May 21, 2013Observed: 0.53 ft at 8:15AM May 21, 2013Observed: 0.53 ft at 8:30AM May 21, 2013Observed: 0.53 ft at 8:45AM May 21, 2013Observed: 0.53 ft at 9:00AM May 21, 2013Observed: 0.54 ft at 9:15AM May 21, 2013Observed: 0.55 ft at 9:30AM May 21, 2013Observed: 0.55 ft at 9:45AM May 21, 2013Observed: 0.57 ft at 10:00AM May 21, 2013Observed: 0.58 ft at 10:15AM May 21, 2013Observed: 0.59 ft at 10:30AM May 21, 2013Observed: 0.61 ft at 10:45AM May 21, 2013Observed: 0.61 ft at 11:00AM May 21, 2013Observed: 0.64 ft at 11:15AM May 21, 2013Observed: 0.8 ft at 11:30AM May 21, 2013Observed: 1.38 ft at 11:45AM May 21, 2013Observed: 1.39 ft at 12:00PM May 21, 2013Observed: 1.39 ft at 12:15PM May 21, 2013Observed: 1.48 ft at 12:30PM May 21, 2013Observed: 1.48 ft at 12:45PM May 21, 2013Observed: 0.86 ft at 1:00PM May 21, 2013Observed: 0.74 ft at 1:15PM May 21, 2013Observed: 0.73 ft at 1:30PM May 21, 2013Observed: 0.74 ft at 1:45PM May 21, 2013Observed: 0.75 ft at 2:00PM May 21, 2013Observed: 0.76 ft at 2:15PM May 21, 2013Observed: 1.06 ft at 2:30PM May 21, 2013Observed: 1 ft at 2:45PM May 21, 2013Observed: 1.35 ft at 3:00PM May 21, 2013Observed: 1.44 ft at 3:15PM May 21, 2013Observed: 1.44 ft at 3:16PM May 21, 2013Observed: 1.61 ft at 3:30PM May 21, 2013Observed: 1.61 ft at 3:45PM May 21, 2013Observed: 1.92 ft at 4:00PM May 21, 2013Observed: 1.53 ft at 4:15PM May 21, 2013Observed: 0.82 ft at 4:30PM May 21, 2013Observed: 0.81 ft at 4:45PM May 21, 2013Observed: 0.82 ft at 5:00PM May 21, 2013Observed: 0.82 ft at 5:15PM May 21, 2013Observed: 0.84 ft at 5:30PM May 21, 2013Observed: 0.85 ft at 5:45PM May 21, 2013Observed: 0.87 ft at 6:15PM May 21, 2013Observed: 0.89 ft at 6:30PM May 21, 2013Observed: 0.9 ft at 6:45PM May 21, 2013Observed: 0.91 ft at 7:00PM May 21, 2013Observed: 0.92 ft at 7:15PM May 21, 2013Observed: 0.93 ft at 7:30PM May 21, 2013Observed: 0.94 ft at 7:45PM May 21, 2013Observed: 0.95 ft at 8:00PM May 21, 2013Observed: 0.97 ft at 8:15PM May 21, 2013Observed: 0.98 ft at 8:30PM May 21, 2013Observed: 0.99 ft at 8:45PM May 21, 2013Observed: 0.99 ft at 9:00PM May 21, 2013Observed: 1 ft at 9:15PM May 21, 2013Observed: 1 ft at 9:16PM May 21, 2013Observed: 1.01 ft at 9:30PM May 21, 2013Observed: 1.02 ft at 9:45PM May 21, 2013Observed: 1.02 ft at 10:00PM May 21, 2013Observed: 1.03 ft at 10:15PM May 21, 2013Observed: 1.03 ft at 10:30PM May 21, 2013Observed: 1.04 ft at 10:45PM May 21, 2013Observed: 1.05 ft at 11:00PM May 21, 2013Observed: 1.05 ft at 11:15PM May 21, 2013Observed: 1.05 ft at 11:30PM May 21, 2013Observed: 1.05 ft at 11:45PM May 21, 2013Observed: 1.06 ft at 12:00AM May 22, 2013Observed: 1.1 ft at 12:15AM May 22, 2013Observed: 1.13 ft at 12:30AM May 22, 2013Observed: 1.15 ft at 12:45AM May 22, 2013Observed: 1.16 ft at 1:00AM May 22, 2013Observed: 1.18 ft at 1:15AM May 22, 2013Observed: 1.21 ft at 1:30AM May 22, 2013Observed: 1.21 ft at 1:45AM May 22, 2013Observed: 1.21 ft at 2:00AM May 22, 2013Observed: 1.21 ft at 2:15AM May 22, 2013Observed: 1.22 ft at 2:30AM May 22, 2013Observed: 1.23 ft at 2:45AM May 22, 2013Observed: 1.22 ft at 3:00AM May 22, 2013Observed: 1.22 ft at 3:15AM May 22, 2013Observed: 1.22 ft at 3:17AM May 22, 2013Observed: 1.27 ft at 3:30AM May 22, 2013Observed: 1.32 ft at 3:45AM May 22, 2013Observed: 1.3 ft at 4:00AM May 22, 2013Observed: 1.3 ft at 4:15AM May 22, 2013Observed: 1.31 ft at 4:30AM May 22, 2013Observed: 1.32 ft at 4:45AM May 22, 2013Observed: 1.33 ft at 5:00AM May 22, 2013Observed: 1.34 ft at 5:15AM May 22, 2013Observed: 1.35 ft at 5:30AM May 22, 2013Observed: 1.36 ft at 7:45AM May 22, 2013Observed: 1.37 ft at 8:00AM May 22, 2013Observed: 1.38 ft at 8:15AM May 22, 2013Observed: 1.38 ft at 8:30AM May 22, 2013Observed: 1.39 ft at 8:45AM May 22, 2013Observed: 1.41 ft at 9:00AM May 22, 2013Observed: 1.41 ft at 9:15AM May 22, 2013Observed: 2.11 ft at 9:30AM May 22, 2013Observed: 2.95 ft at 9:45AM May 22, 2013Highest Observation: 2.98 ft at 10:00AM May 22, 2013Observed: 2.97 ft at 10:15AM May 22, 2013Observed: 2.95 ft at 10:30AM May 22, 2013Observed: 2.94 ft at 10:45AM May 22, 2013Observed: 2.91 ft at 11:00AM May 22, 2013Observed: 2.9 ft at 11:15AM May 22, 2013Observed: 2.87 ft at 11:30AM May 22, 2013Observed: 2.86 ft at 11:45AM May 22, 2013Observed: 2.87 ft at 12:00PM May 22, 2013Observed: 2.81 ft at 12:15PM May 22, 2013Observed: 2.81 ft at 12:30PM May 22, 2013Observed: 2.79 ft at 12:45PM May 22, 2013Observed: 2.79 ft at 1:00PM May 22, 2013Observed: 2.78 ft at 1:15PM May 22, 2013Observed: 2.75 ft at 1:30PM May 22, 2013Observed: 2.75 ft at 1:45PM May 22, 2013Observed: 2.74 ft at 2:00PM May 22, 2013Observed: 2.74 ft at 2:15PM May 22, 2013Observed: 2.65 ft at 2:30PM May 22, 2013Observed: 2.07 ft at 2:45PM May 22, 2013Observed: 1.79 ft at 3:00PM May 22, 2013Observed: 1.81 ft at 3:15PM May 22, 2013Observed: 1.81 ft at 3:16PM May 22, 2013Observed: 1.76 ft at 3:30PM May 22, 2013Observed: 1.77 ft at 3:45PM May 22, 2013Observed: 1.75 ft at 4:00PM May 22, 2013Observed: 1.76 ft at 4:15PM May 22, 2013Observed: 1.76 ft at 4:30PM May 22, 2013Observed: 1.1 ft at 4:45PM May 22, 2013Observed: 1.67 ft at 5:00PM May 22, 2013Observed: 1.71 ft at 5:15PM May 22, 2013Observed: 1.71 ft at 5:30PM May 22, 2013Observed: 1.7 ft at 5:45PM May 22, 2013Observed: 1.71 ft at 6:00PM May 22, 2013Observed: 1.7 ft at 6:15PM May 22, 2013Observed: 1.71 ft at 6:30PM May 22, 2013Observed: 1.7 ft at 6:45PM May 22, 2013Observed: 1.71 ft at 7:00PM May 22, 2013Observed: 1.72 ft at 7:15PM May 22, 2013Observed: 1.71 ft at 7:30PM May 22, 2013Observed: 1.72 ft at 7:45PM May 22, 2013Observed: 1.74 ft at 8:00PM May 22, 2013Observed: 1.76 ft at 8:15PM May 22, 2013Observed: 1.76 ft at 8:30PM May 22, 2013Observed: 1.77 ft at 8:45PM May 22, 2013Observed: 1.75 ft at 9:00PM May 22, 2013Observed: 1.76 ft at 9:15PM May 22, 2013Observed: 1.76 ft at 9:16PM May 22, 2013Observed: 1.77 ft at 9:30PM May 22, 2013Observed: 1.76 ft at 9:45PM May 22, 2013Observed: 1.77 ft at 10:00PM May 22, 2013Observed: 1.76 ft at 10:15PM May 22, 2013Observed: 1.76 ft at 10:30PM May 22, 2013Observed: 1.76 ft at 10:45PM May 22, 2013Observed: 1.77 ft at 11:00PM May 22, 2013Observed: 1.76 ft at 11:15PM May 22, 2013Observed: 1.77 ft at 11:30PM May 22, 2013Observed: 1.78 ft at 11:45PM May 22, 2013Observed: 1.78 ft at 12:00AM May 23, 2013Observed: 1.77 ft at 12:15AM May 23, 2013Observed: 1.77 ft at 12:30AM May 23, 2013Observed: 1.77 ft at 12:45AM May 23, 2013Observed: 1.78 ft at 1:00AM May 23, 2013Observed: 1.78 ft at 1:15AM May 23, 2013Observed: 1.78 ft at 1:30AM May 23, 2013Observed: 1.78 ft at 1:45AM May 23, 2013Observed: 1.79 ft at 2:00AM May 23, 2013Observed: 1.79 ft at 2:15AM May 23, 2013Observed: 1.78 ft at 2:30AM May 23, 2013Observed: 1.79 ft at 2:45AM May 23, 2013Observed: 1.8 ft at 3:00AM May 23, 2013Observed: 1.79 ft at 3:15AM May 23, 2013Observed: 1.79 ft at 3:17AM May 23, 2013Observed: 1.79 ft at 3:30AM May 23, 2013Observed: 1.78 ft at 3:45AM May 23, 2013Observed: 1.79 ft at 4:00AM May 23, 2013Observed: 1.79 ft at 4:15AM May 23, 2013Observed: 1.8 ft at 4:30AM May 23, 2013Observed: 1.8 ft at 4:45AM May 23, 2013Observed: 1.81 ft at 5:00AM May 23, 2013Observed: 1.81 ft at 5:15AM May 23, 2013Observed: 1.82 ft at 5:30AM May 23, 2013Observed: 1.81 ft at 5:45AM May 23, 2013Observed: 1.81 ft at 6:00AM May 23, 2013Observed: 1.8 ft at 6:15AM May 23, 2013Observed: 2 ft at 6:30AM May 23, 2013Observed: 2 ft at 6:45AM May 23, 2013Observed: 2 ft at 7:00AM May 23, 2013Observed: 1.99 ft at 7:15AM May 23, 2013Observed: 2.01 ft at 7:30AM May 23, 2013Observed: 2.01 ft at 7:45AM May 23, 2013Observed: 2.01 ft at 8:00AM May 23, 2013Observed: 2.01 ft at 8:15AM May 23, 2013Observed: 2.01 ft at 8:30AM May 23, 2013Observed: 2 ft at 8:45AM May 23, 2013Observed: 2.01 ft at 9:00AM May 23, 2013Observed: 2.02 ft at 9:15AM May 23, 2013Observed: 2.01 ft at 9:30AM May 23, 2013Observed: 2.01 ft at 9:45AM May 23, 2013Observed: 2.01 ft at 10:00AM May 23, 2013Observed: 2.01 ft at 10:15AM May 23, 2013Observed: 2.02 ft at 10:30AM May 23, 2013Observed: 2.06 ft at 10:45AM May 23, 2013Observed: 2.09 ft at 11:00AM May 23, 2013Observed: 2.06 ft at 11:15AM May 23, 2013Observed: 2.07 ft at 11:30AM May 23, 2013Observed: 2.07 ft at 11:45AM May 23, 2013Observed: 2.06 ft at 12:00PM May 23, 2013Observed: 2.07 ft at 12:15PM May 23, 2013Observed: 2.08 ft at 12:30PM May 23, 2013Observed: 2.1 ft at 12:45PM May 23, 2013Observed: 2.09 ft at 1:00PM May 23, 2013Observed: 2.1 ft at 1:15PM May 23, 2013Observed: 2.11 ft at 1:30PM May 23, 2013Observed: 2.12 ft at 1:45PM May 23, 2013Observed: 2.14 ft at 2:00PM May 23, 2013Observed: 2.14 ft at 2:15PM May 23, 2013Observed: 2.14 ft at 2:30PM May 23, 2013Observed: 2.15 ft at 2:45PM May 23, 2013Observed: 2.17 ft at 3:00PM May 23, 2013Observed: 2.16 ft at 3:15PM May 23, 2013Observed: 2.17 ft at 3:30PM May 23, 2013Observed: 2.17 ft at 3:32PM May 23, 2013Observed: 2.18 ft at 3:45PM May 23, 2013Observed: 2.15 ft at 4:00PM May 23, 2013Observed: 2.15 ft at 4:15PM May 23, 2013Observed: 2.15 ft at 4:30PM May 23, 2013Observed: 2.14 ft at 4:45PM May 23, 2013Observed: 2.15 ft at 5:00PM May 23, 2013Observed: 2.13 ft at 5:15PM May 23, 2013Observed: 2.15 ft at 5:30PM May 23, 2013Observed: 2.15 ft at 5:45PM May 23, 2013Observed: 2.14 ft at 6:00PM May 23, 2013Observed: 2.18 ft at 6:15PM May 23, 2013Observed: 2.18 ft at 6:30PM May 23, 2013Forecast: 1.9 ft 8:00PM May 23, 2013Forecast: 1.9 ft 2:00AM May 24, 2013Forecast: 2.1 ft 8:00AM May 24, 2013Forecast: 2.5 ft 2:00PM May 24, 2013Forecast: 2.9 ft 8:00PM May 24, 2013Forecast: 3.3 ft 2:00AM May 25, 2013Forecast: 3.7 ft 8:00AM May 25, 2013Forecast: 4 ft 2:00PM May 25, 2013Highest Forecast: 4.2 ft 8:00PM May 25, 2013Highest Forecast: 4.2 ft 2:00AM May 26, 2013Forecast: 4.1 ft 8:00AM May 26, 2013USGS--Water Resources of the United StatesDNSM3(plotting HGIRG) Graph Created (7:50PM May 23, 2013)ObservedForecast (issued 11:21AM May 23)Latest observed value: 2.18 ft at 6:30 PM EDT 23-May-2013. Flood Stage is 8 ft
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NOTE: Gauge reading affected by power generation.

NOTE: Forecasts for the Nashua River at East Pepperell are issued routinely year-round.

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Flood Categories (in feet)
Major Flood Stage:15
Moderate Flood Stage:12
Flood Stage:8
Action Stage:7

Historical Crests
(1) 19.10 ft on 03/20/1936
(2) 16.19 ft on 04/07/1987
(3) 15.75 ft on 03/17/2010
(4) 14.08 ft on 09/23/1938
(5) 13.78 ft on 04/01/2010
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Low Water Records
Legend
Gauge Location
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
16 WIDESPREAD INUNDATION OF RESIDENTIAL AREAS ALONG THE NASHUA RIVER IS LIKELY. AREAS THAT WILL BE THE MOST IMPACTED INCLUDE PARTS OF EAST PEPPERELL...HOLLIS AND NASHUA. FLOODING IS EXPECTED ALONG A STRETCH OF 119 IN PEPPERELL. IN GROTON...POTENTIALLY AFFECTED AREAS INCLUDE FITCHS BRIDGE ROAD...LONG HILL ROAD...AND ROUTE 225. TAKE ACTION NOW TO PROTECT LIFE AND PROPERTY. FOLLOW THE DIRECTIONS OF EMERGENCY MANAGEMENT OFFICIALS. THE STANDARD RIVER GAGE DOES NOT REPORT AT THIS ELEVATION.
14 FLOODING IS EXPECTED IN LOW LYING RESIDENTIAL AREAS ALONG PORTIONS OF THE NASHUA RIVER. FLOODWATERS INUNDATE A PORTION OF ROUTE 119 IN PEPPERELL...AND ALSO INUNDATE BUSINESSES ON ROUTE 119 NEAR ITS JUNCTION WITH ROUTE 111. KNOW THE ALTERNATE ROUTES IN YOUR LOCATION SO YOU AVOID AREAS WHERE FLOOD WATERS MAY HAVE DAMAGED OR CLOSED AREA ROADWAYS. FOLLOW THE DIRECTIONS OF LOCAL OFFICIALS AND IF ASKED TO EVACUATE DO SO IMMEDIATELY. THE STANDARD RIVER GAGE CAN NOT REPORT HIGHER THAN THIS ELEVATION.
12 FLOODING IS EXPECTED IN LOW LYING RESIDENTIAL AREAS ALONG PORTIONS OF THE NASHUA RIVER. FLOODWATERS INUNDATE A PORTION OF ROUTE 119 IN PEPPERELL...AND ALSO INUNDATE BUSINESSES ON ROUTE 119 NEAR ITS JUNCTION WITH ROUTE 111. KNOW THE ALTERNATE ROUTES IN YOUR LOCATION SO YOU AVOID AREAS WHERE FLOOD WATERS MAY HAVE DAMAGED OR CLOSED AREA ROADWAYS.
11 FLOODING IS EXPECTED IN LOW LYING RESIDENTIAL AREAS ALONG PORTIONS OF THE NASHUA RIVER. FOLLOW THE DIRECTIONS PROVIDED BY YOUR LOCAL EMERGENCY MANAGEMENT OFFICIALS. AVOID FLOOD PRONE LOCATIONS. KNOW THE ALTERNATE ROUTES IN YOUR LOCATION SO YOU AVOID AREAS WHERE FLOOD WATERS MAY HAVE DAMAGED OR CLOSED AREA ROADWAYS.
10 MINOR LOWLAND FLOODING IS LIKELY ALONG THE RIVER FROM EAST PEPPERELL DOWNSTREAM THROUGH HOLLIS. FLOODING WILL IMPACT SOME LOW LYING BUSINESSES ALONG ROUTE 119 IN PEPPERELL IN THE VICINITY OF ROUTE 111.
9 MINOR LOWLAND FLOODING IS LIKELY ALONG THE RIVER FROM EAST PEPPERELL DOWNSTREAM THROUGH HOLLIS. FLOODING WILL IMPACT LOW LYING BUSINESSES ALONG ROUTE 119 IN PEPPERELL IN THE VICINITY OF ITS JUNCTION WITH ROUTE 111.
8 MINOR LOWLAND FLOODING IS LIKELY ALONG THE RIVER FROM EAST PEPPERELL DOWNSTREAM THROUGH HOLLIS.
About This Location Collapse

Latitude: 42.667500° N, Longitude: 71.575556° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 8 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 Not Available Not Available 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  

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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.
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