Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left Home News Organization
Bookmark and Share Navigation Bar End Cap

  

National Conditions
    Rivers
    Satellite
    Climate
    Observed Precip

Local Conditions
    Warnings
    Weather Forecast
    Radar

AHPS Documentation
    User Guide
    User Brochure

What is AHPS?
    Facts
    Our Partners

Feedback/Questions
    Provide Feedback
    Ask Questions

When flooded turn around don't drown
FloodSmart
USA.gov Official Web Portal
 
Hydrograph River at a Glance Download
Sandy River (ME) at Mercer Stage (ft)Flow (kcfs)Observed: 2.97 ft at 10:45PM Aug 18, 2019Observed: 2.97 ft at 11:00PM Aug 18, 2019Observed: 2.97 ft at 11:15PM Aug 18, 2019Observed: 2.97 ft at 11:30PM Aug 18, 2019Observed: 2.97 ft at 11:45PM Aug 18, 2019Observed: 2.97 ft at 12:00AM Aug 19, 2019Observed: 2.97 ft at 12:15AM Aug 19, 2019Observed: 2.97 ft at 12:30AM Aug 19, 2019Observed: 2.97 ft at 12:45AM Aug 19, 2019Observed: 2.96 ft at 1:00AM Aug 19, 2019Observed: 2.97 ft at 1:15AM Aug 19, 2019Observed: 2.96 ft at 1:30AM Aug 19, 2019Observed: 2.96 ft at 1:45AM Aug 19, 2019Observed: 2.97 ft at 2:00AM Aug 19, 2019Observed: 2.96 ft at 2:15AM Aug 19, 2019Observed: 2.96 ft at 2:30AM Aug 19, 2019Observed: 2.96 ft at 2:45AM Aug 19, 2019Observed: 2.96 ft at 3:00AM Aug 19, 2019Observed: 2.96 ft at 3:15AM Aug 19, 2019Observed: 2.96 ft at 3:30AM Aug 19, 2019Observed: 2.96 ft at 3:45AM Aug 19, 2019Observed: 2.97 ft at 4:00AM Aug 19, 2019Observed: 2.97 ft at 4:15AM Aug 19, 2019Observed: 2.97 ft at 4:30AM Aug 19, 2019Observed: 2.97 ft at 4:45AM Aug 19, 2019Observed: 2.97 ft at 5:00AM Aug 19, 2019Observed: 2.97 ft at 5:15AM Aug 19, 2019Observed: 2.97 ft at 5:30AM Aug 19, 2019Observed: 2.97 ft at 5:45AM Aug 19, 2019Observed: 2.97 ft at 6:00AM Aug 19, 2019Observed: 2.97 ft at 6:15AM Aug 19, 2019Observed: 2.97 ft at 6:30AM Aug 19, 2019Observed: 2.97 ft at 6:45AM Aug 19, 2019Observed: 2.97 ft at 7:00AM Aug 19, 2019Observed: 2.97 ft at 7:15AM Aug 19, 2019Observed: 2.97 ft at 7:30AM Aug 19, 2019Observed: 2.97 ft at 7:45AM Aug 19, 2019Observed: 2.97 ft at 8:00AM Aug 19, 2019Observed: 2.97 ft at 8:15AM Aug 19, 2019Observed: 2.97 ft at 8:30AM Aug 19, 2019Observed: 2.97 ft at 8:45AM Aug 19, 2019Observed: 2.97 ft at 9:00AM Aug 19, 2019Observed: 2.98 ft at 9:15AM Aug 19, 2019Observed: 2.98 ft at 9:30AM Aug 19, 2019Observed: 2.98 ft at 9:45AM Aug 19, 2019Observed: 2.98 ft at 10:00AM Aug 19, 2019Observed: 2.98 ft at 11:15AM Aug 19, 2019Observed: 2.98 ft at 11:30AM Aug 19, 2019Observed: 2.98 ft at 11:45AM Aug 19, 2019Observed: 2.98 ft at 12:00PM Aug 19, 2019Observed: 2.98 ft at 12:15PM Aug 19, 2019Observed: 2.98 ft at 12:30PM Aug 19, 2019Observed: 2.98 ft at 12:45PM Aug 19, 2019Observed: 2.99 ft at 1:00PM Aug 19, 2019Observed: 2.99 ft at 1:15PM Aug 19, 2019Observed: 2.99 ft at 1:30PM Aug 19, 2019Observed: 2.99 ft at 1:45PM Aug 19, 2019Observed: 2.99 ft at 2:00PM Aug 19, 2019Observed: 2.99 ft at 2:15PM Aug 19, 2019Observed: 2.99 ft at 2:30PM Aug 19, 2019Observed: 3 ft at 2:45PM Aug 19, 2019Observed: 3 ft at 3:00PM Aug 19, 2019Observed: 3 ft at 3:15PM Aug 19, 2019Observed: 3 ft at 3:30PM Aug 19, 2019Observed: 3 ft at 3:45PM Aug 19, 2019Observed: 3.01 ft at 4:00PM Aug 19, 2019Observed: 3.01 ft at 4:15PM Aug 19, 2019Observed: 3.01 ft at 4:30PM Aug 19, 2019Observed: 3.01 ft at 4:45PM Aug 19, 2019Observed: 3.02 ft at 5:00PM Aug 19, 2019Observed: 3.02 ft at 5:15PM Aug 19, 2019Observed: 3.02 ft at 5:30PM Aug 19, 2019Observed: 3.02 ft at 5:45PM Aug 19, 2019Observed: 3.03 ft at 6:00PM Aug 19, 2019Observed: 3.03 ft at 6:15PM Aug 19, 2019Observed: 3.03 ft at 6:30PM Aug 19, 2019Observed: 3.03 ft at 6:45PM Aug 19, 2019Observed: 3.04 ft at 7:00PM Aug 19, 2019Observed: 3.04 ft at 7:15PM Aug 19, 2019Observed: 3.04 ft at 7:30PM Aug 19, 2019Observed: 3.04 ft at 7:45PM Aug 19, 2019Observed: 3.05 ft at 8:00PM Aug 19, 2019Observed: 3.05 ft at 8:15PM Aug 19, 2019Observed: 3.05 ft at 8:30PM Aug 19, 2019Observed: 3.05 ft at 8:45PM Aug 19, 2019Observed: 3.05 ft at 9:00PM Aug 19, 2019Observed: 3.06 ft at 9:15PM Aug 19, 2019Observed: 3.06 ft at 9:30PM Aug 19, 2019Observed: 3.06 ft at 9:45PM Aug 19, 2019Observed: 3.06 ft at 10:00PM Aug 19, 2019Observed: 3.06 ft at 10:15PM Aug 19, 2019Observed: 3.06 ft at 10:30PM Aug 19, 2019Observed: 3.06 ft at 10:45PM Aug 19, 2019Observed: 3.07 ft at 11:00PM Aug 19, 2019Observed: 3.07 ft at 11:15PM Aug 19, 2019Observed: 3.07 ft at 11:30PM Aug 19, 2019Observed: 3.07 ft at 11:45PM Aug 19, 2019Observed: 3.07 ft at 12:00AM Aug 20, 2019Observed: 3.07 ft at 12:15AM Aug 20, 2019Observed: 3.07 ft at 12:30AM Aug 20, 2019Observed: 3.07 ft at 12:45AM Aug 20, 2019Observed: 3.07 ft at 1:00AM Aug 20, 2019Observed: 3.07 ft at 1:15AM Aug 20, 2019Observed: 3.07 ft at 1:30AM Aug 20, 2019Observed: 3.07 ft at 1:45AM Aug 20, 2019Observed: 3.07 ft at 2:00AM Aug 20, 2019Observed: 3.07 ft at 2:15AM Aug 20, 2019Observed: 3.07 ft at 2:30AM Aug 20, 2019Observed: 3.07 ft at 2:45AM Aug 20, 2019Observed: 3.07 ft at 3:00AM Aug 20, 2019Observed: 3.07 ft at 3:15AM Aug 20, 2019Observed: 3.07 ft at 3:30AM Aug 20, 2019Observed: 3.07 ft at 3:45AM Aug 20, 2019Observed: 3.07 ft at 4:00AM Aug 20, 2019Observed: 3.07 ft at 4:15AM Aug 20, 2019Observed: 3.07 ft at 4:30AM Aug 20, 2019Observed: 3.07 ft at 4:45AM Aug 20, 2019Observed: 3.07 ft at 5:00AM Aug 20, 2019Observed: 3.07 ft at 5:15AM Aug 20, 2019Observed: 3.07 ft at 5:30AM Aug 20, 2019Observed: 3.07 ft at 5:45AM Aug 20, 2019Observed: 3.07 ft at 6:00AM Aug 20, 2019Observed: 3.06 ft at 6:15AM Aug 20, 2019Observed: 3.07 ft at 6:30AM Aug 20, 2019Observed: 3.06 ft at 6:45AM Aug 20, 2019Observed: 3.06 ft at 7:00AM Aug 20, 2019Observed: 3.06 ft at 7:15AM Aug 20, 2019Observed: 3.06 ft at 7:30AM Aug 20, 2019Observed: 3.06 ft at 7:45AM Aug 20, 2019Observed: 3.06 ft at 8:00AM Aug 20, 2019Observed: 3.06 ft at 8:15AM Aug 20, 2019Observed: 3.06 ft at 8:30AM Aug 20, 2019Observed: 3.06 ft at 8:45AM Aug 20, 2019Observed: 3.05 ft at 9:00AM Aug 20, 2019Observed: 3.05 ft at 9:15AM Aug 20, 2019Observed: 3.05 ft at 9:30AM Aug 20, 2019Observed: 3.05 ft at 9:45AM Aug 20, 2019Observed: 3.05 ft at 10:00AM Aug 20, 2019Observed: 3.05 ft at 10:15AM Aug 20, 2019Observed: 3.05 ft at 10:30AM Aug 20, 2019Observed: 3.04 ft at 10:45AM Aug 20, 2019Observed: 3.05 ft at 11:00AM Aug 20, 2019Observed: 3.05 ft at 11:15AM Aug 20, 2019Observed: 3.04 ft at 11:30AM Aug 20, 2019Observed: 3.04 ft at 11:45AM Aug 20, 2019Observed: 3.04 ft at 12:00PM Aug 20, 2019Observed: 3.04 ft at 12:15PM Aug 20, 2019Observed: 3.04 ft at 12:30PM Aug 20, 2019Observed: 3.04 ft at 12:45PM Aug 20, 2019Observed: 3.04 ft at 1:00PM Aug 20, 2019Observed: 3.04 ft at 1:15PM Aug 20, 2019Observed: 3.04 ft at 1:30PM Aug 20, 2019Observed: 3.04 ft at 1:45PM Aug 20, 2019Observed: 3.04 ft at 2:00PM Aug 20, 2019Observed: 3.04 ft at 2:15PM Aug 20, 2019Observed: 3.04 ft at 2:30PM Aug 20, 2019Observed: 3.04 ft at 2:45PM Aug 20, 2019Observed: 3.04 ft at 3:00PM Aug 20, 2019Observed: 3.04 ft at 3:15PM Aug 20, 2019Observed: 3.04 ft at 3:30PM Aug 20, 2019Observed: 3.04 ft at 3:45PM Aug 20, 2019Observed: 3.04 ft at 4:00PM Aug 20, 2019Observed: 3.04 ft at 4:15PM Aug 20, 2019Observed: 3.04 ft at 4:30PM Aug 20, 2019Observed: 3.04 ft at 4:45PM Aug 20, 2019Observed: 3.04 ft at 5:00PM Aug 20, 2019Observed: 3.04 ft at 5:15PM Aug 20, 2019Observed: 3.04 ft at 5:30PM Aug 20, 2019Observed: 3.04 ft at 5:45PM Aug 20, 2019Observed: 3.04 ft at 6:00PM Aug 20, 2019Observed: 3.04 ft at 6:15PM Aug 20, 2019Observed: 3.04 ft at 6:30PM Aug 20, 2019Observed: 3.03 ft at 6:45PM Aug 20, 2019Observed: 3.03 ft at 7:00PM Aug 20, 2019Observed: 3.03 ft at 7:15PM Aug 20, 2019Observed: 3.03 ft at 7:30PM Aug 20, 2019Observed: 3.03 ft at 7:45PM Aug 20, 2019Observed: 3.03 ft at 8:00PM Aug 20, 2019Observed: 3.03 ft at 8:15PM Aug 20, 2019Observed: 3.03 ft at 8:30PM Aug 20, 2019Observed: 3.03 ft at 8:45PM Aug 20, 2019Observed: 3.03 ft at 9:00PM Aug 20, 2019Observed: 3.03 ft at 9:15PM Aug 20, 2019Observed: 3.03 ft at 9:30PM Aug 20, 2019Observed: 3.03 ft at 9:45PM Aug 20, 2019Observed: 3.03 ft at 10:00PM Aug 20, 2019Observed: 3.02 ft at 10:15PM Aug 20, 2019Observed: 3.02 ft at 10:30PM Aug 20, 2019Observed: 3.02 ft at 10:45PM Aug 20, 2019Observed: 3.02 ft at 11:00PM Aug 20, 2019Observed: 3.02 ft at 11:15PM Aug 20, 2019Observed: 3.02 ft at 11:30PM Aug 20, 2019Observed: 3.02 ft at 11:45PM Aug 20, 2019Observed: 3.02 ft at 12:00AM Aug 21, 2019Observed: 3.01 ft at 12:15AM Aug 21, 2019Observed: 3.01 ft at 12:30AM Aug 21, 2019Observed: 3.01 ft at 12:45AM Aug 21, 2019Observed: 3.01 ft at 1:00AM Aug 21, 2019Observed: 3.01 ft at 1:15AM Aug 21, 2019Observed: 3.01 ft at 1:30AM Aug 21, 2019Observed: 3.01 ft at 1:45AM Aug 21, 2019Observed: 3.01 ft at 2:00AM Aug 21, 2019Observed: 3 ft at 2:15AM Aug 21, 2019Observed: 3 ft at 2:30AM Aug 21, 2019Observed: 3 ft at 2:45AM Aug 21, 2019Observed: 3 ft at 3:00AM Aug 21, 2019Observed: 3 ft at 3:15AM Aug 21, 2019Observed: 3 ft at 3:30AM Aug 21, 2019Observed: 3 ft at 3:45AM Aug 21, 2019Observed: 3 ft at 4:00AM Aug 21, 2019Observed: 2.99 ft at 4:15AM Aug 21, 2019Observed: 2.99 ft at 4:30AM Aug 21, 2019Observed: 2.99 ft at 4:45AM Aug 21, 2019Observed: 2.99 ft at 5:00AM Aug 21, 2019Observed: 2.99 ft at 5:15AM Aug 21, 2019Observed: 2.99 ft at 5:30AM Aug 21, 2019Observed: 2.99 ft at 5:45AM Aug 21, 2019Observed: 2.99 ft at 6:00AM Aug 21, 2019Observed: 2.99 ft at 6:15AM Aug 21, 2019Observed: 2.99 ft at 6:30AM Aug 21, 2019Observed: 2.98 ft at 6:45AM Aug 21, 2019Observed: 2.98 ft at 7:00AM Aug 21, 2019Observed: 2.98 ft at 7:15AM Aug 21, 2019Observed: 2.98 ft at 7:30AM Aug 21, 2019Observed: 2.98 ft at 7:45AM Aug 21, 2019Observed: 2.98 ft at 8:00AM Aug 21, 2019Observed: 2.98 ft at 8:30AM Aug 21, 2019Observed: 2.98 ft at 8:45AM Aug 21, 2019Observed: 2.98 ft at 9:00AM Aug 21, 2019Observed: 2.98 ft at 9:15AM Aug 21, 2019Observed: 2.98 ft at 9:30AM Aug 21, 2019Observed: 2.98 ft at 9:45AM Aug 21, 2019Observed: 2.98 ft at 10:00AM Aug 21, 2019Observed: 2.98 ft at 10:15AM Aug 21, 2019Observed: 2.98 ft at 10:30AM Aug 21, 2019Observed: 2.97 ft at 10:45AM Aug 21, 2019Observed: 2.97 ft at 11:00AM Aug 21, 2019Observed: 2.97 ft at 11:15AM Aug 21, 2019Observed: 2.97 ft at 11:30AM Aug 21, 2019Observed: 2.97 ft at 11:45AM Aug 21, 2019Observed: 2.97 ft at 12:00PM Aug 21, 2019Observed: 2.97 ft at 12:15PM Aug 21, 2019Observed: 2.97 ft at 12:30PM Aug 21, 2019Observed: 2.96 ft at 12:45PM Aug 21, 2019Observed: 2.97 ft at 1:00PM Aug 21, 2019Observed: 2.96 ft at 1:15PM Aug 21, 2019Observed: 2.96 ft at 1:30PM Aug 21, 2019Observed: 2.96 ft at 1:45PM Aug 21, 2019Observed: 2.96 ft at 2:00PM Aug 21, 2019Observed: 2.96 ft at 2:15PM Aug 21, 2019Observed: 2.96 ft at 2:30PM Aug 21, 2019Observed: 2.96 ft at 2:45PM Aug 21, 2019Observed: 2.96 ft at 3:00PM Aug 21, 2019Observed: 2.96 ft at 3:15PM Aug 21, 2019Observed: 2.96 ft at 3:30PM Aug 21, 2019Observed: 2.96 ft at 3:45PM Aug 21, 2019Observed: 2.96 ft at 4:00PM Aug 21, 2019Observed: 2.96 ft at 4:15PM Aug 21, 2019Observed: 2.96 ft at 4:30PM Aug 21, 2019Observed: 2.96 ft at 4:45PM Aug 21, 2019Observed: 2.96 ft at 5:00PM Aug 21, 2019Observed: 2.96 ft at 5:15PM Aug 21, 2019Observed: 2.96 ft at 5:30PM Aug 21, 2019Observed: 2.95 ft at 5:45PM Aug 21, 2019Observed: 2.96 ft at 6:00PM Aug 21, 2019Observed: 2.98 ft at 6:15PM Aug 21, 2019Observed: 3 ft at 6:30PM Aug 21, 2019Observed: 3.04 ft at 6:45PM Aug 21, 2019Observed: 3.08 ft at 7:00PM Aug 21, 2019Observed: 3.11 ft at 7:15PM Aug 21, 2019Observed: 3.15 ft at 7:30PM Aug 21, 2019Observed: 3.19 ft at 7:45PM Aug 21, 2019Observed: 3.23 ft at 8:00PM Aug 21, 2019Observed: 3.26 ft at 8:15PM Aug 21, 2019Observed: 3.29 ft at 8:30PM Aug 21, 2019Observed: 3.33 ft at 8:45PM Aug 21, 2019Observed: 3.35 ft at 9:00PM Aug 21, 2019Observed: 3.37 ft at 9:15PM Aug 21, 2019Observed: 3.38 ft at 9:30PM Aug 21, 2019Highest Observation: 3.39 ft at 9:45PM Aug 21, 2019Highest Observation: 3.39 ft at 10:00PM Aug 21, 2019Forecast: 3.4 ft 2:00AM Aug 22, 2019Forecast: 3.7 ft 8:00AM Aug 22, 2019Highest Forecast: 3.8 ft 2:00PM Aug 22, 2019Forecast: 3.7 ft 8:00PM Aug 22, 2019Forecast: 3.6 ft 2:00AM Aug 23, 2019Forecast: 3.5 ft 8:00AM Aug 23, 2019Forecast: 3.3 ft 2:00PM Aug 23, 2019Forecast: 3.3 ft 8:00PM Aug 23, 2019Forecast: 3.2 ft 2:00AM Aug 24, 2019Forecast: 3.1 ft 8:00AM Aug 24, 2019USGS--Water Resources of the United StatesMERM1(plotting HGIRG) Graph Created (10:35PM Aug 21, 2019)ObservedForecast (issued 11:08AM Aug 21)Latest observed value: 3.39 ft at 10:00 PM EDT 21-Aug-2019. Flood Stage is 12 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Sandy River (ME) at Mercer are issued routinely year-round.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 17
Moderate Flood Stage: 15
Flood Stage: 12
Action Stage: 10
Low Stage (in feet): -9999

Historic Crests
(1) 19.25 ft on 04/01/1987
(2) 18.89 ft on 02/12/1970
(3) 17.27 ft on 03/15/1977
(4) 16.75 ft on 03/19/1936
(5) 16.34 ft on 03/28/1953
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.00 ft on 12/13/2010
(2) 13.73 ft on 04/04/2005
(3) 13.03 ft on 12/18/2003
(4) 14.20 ft on 06/15/1998
(5) 13.30 ft on 12/02/1996
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 2.27 ft on 09/14/2002
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
19 Hundreds of acres of farmland flooded in Mercer and Starks. Low spots on Sandy River Road flooded in Mercer
17 More extensive flooding of farmland.
12 Flooding of fields and pastures begins.
About This Location Collapse

Latitude: 44.708056° N, Longitude: 69.937500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 12 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 29 197.1 ft 209.1 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
Additional Information Collapse
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
3 Day (SREF) 7 Day (NAEFS) 7 Day (GEFS)
SREF Ensemble NAEFS Ensemble  GEFS Ensemble 

Note: Use the official hydrograph at the top of this web page for river levels within the next 48 hours.

See the Product Description Document link for more details on the interpretation of the 3,7 day graphics. 

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
Gray Weather Forecast Office
P.O. Box 1208, 1 Weather Lane, Route 231
Gray, ME 04039
(207) 688-3216
Ask Questions/Webmaster
Page last modified: 1-Mar-2019 12:35 AM 		Disclaimer
Credits
Glossary 		Privacy Policy
About Us
Career Opportunities