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Hydrograph River at a Glance Download
Two Rivers River at Hallock Stage (ft)Flow (kcfs)Observed: 796.9 ft at 11:15PM May 27, 2016Observed: 797.01 ft at 11:30PM May 27, 2016Observed: 797.13 ft at 11:45PM May 27, 2016Observed: 797.27 ft at 12:00AM May 28, 2016Observed: 797.41 ft at 12:15AM May 28, 2016Observed: 797.57 ft at 12:30AM May 28, 2016Observed: 797.71 ft at 12:45AM May 28, 2016Observed: 797.86 ft at 1:00AM May 28, 2016Observed: 797.97 ft at 1:15AM May 28, 2016Observed: 798.09 ft at 1:30AM May 28, 2016Observed: 798.21 ft at 1:45AM May 28, 2016Observed: 798.31 ft at 2:00AM May 28, 2016Observed: 798.4 ft at 2:15AM May 28, 2016Observed: 798.48 ft at 2:30AM May 28, 2016Observed: 798.53 ft at 2:45AM May 28, 2016Observed: 798.57 ft at 3:00AM May 28, 2016Observed: 798.61 ft at 3:15AM May 28, 2016Observed: 798.63 ft at 3:30AM May 28, 2016Observed: 798.64 ft at 3:45AM May 28, 2016Observed: 798.65 ft at 4:00AM May 28, 2016Observed: 798.63 ft at 4:15AM May 28, 2016Observed: 798.62 ft at 4:30AM May 28, 2016Observed: 798.57 ft at 4:45AM May 28, 2016Observed: 798.56 ft at 5:00AM May 28, 2016Observed: 798.53 ft at 5:15AM May 28, 2016Observed: 798.5 ft at 5:30AM May 28, 2016Observed: 798.45 ft at 5:45AM May 28, 2016Observed: 798.41 ft at 6:00AM May 28, 2016Observed: 798.38 ft at 6:15AM May 28, 2016Observed: 798.32 ft at 6:30AM May 28, 2016Observed: 798.27 ft at 6:45AM May 28, 2016Observed: 798.23 ft at 7:00AM May 28, 2016Observed: 798.17 ft at 7:15AM May 28, 2016Observed: 798.12 ft at 7:30AM May 28, 2016Observed: 798.07 ft at 7:45AM May 28, 2016Observed: 798.03 ft at 8:00AM May 28, 2016Observed: 797.98 ft at 8:15AM May 28, 2016Observed: 797.93 ft at 8:30AM May 28, 2016Observed: 797.89 ft at 8:45AM May 28, 2016Observed: 797.84 ft at 9:00AM May 28, 2016Observed: 797.81 ft at 9:15AM May 28, 2016Observed: 797.77 ft at 9:30AM May 28, 2016Observed: 797.72 ft at 9:45AM May 28, 2016Observed: 797.69 ft at 10:00AM May 28, 2016Observed: 797.65 ft at 10:15AM May 28, 2016Observed: 797.62 ft at 10:30AM May 28, 2016Observed: 797.6 ft at 10:45AM May 28, 2016Observed: 797.57 ft at 11:00AM May 28, 2016Observed: 797.54 ft at 11:15AM May 28, 2016Observed: 797.52 ft at 11:30AM May 28, 2016Observed: 797.48 ft at 11:45AM May 28, 2016Observed: 797.48 ft at 12:00PM May 28, 2016Observed: 797.45 ft at 12:15PM May 28, 2016Observed: 797.44 ft at 12:30PM May 28, 2016Observed: 797.43 ft at 12:45PM May 28, 2016Observed: 797.42 ft at 1:00PM May 28, 2016Observed: 797.34 ft at 2:15PM May 28, 2016Observed: 797.36 ft at 2:30PM May 28, 2016Observed: 797.35 ft at 2:45PM May 28, 2016Observed: 797.32 ft at 3:00PM May 28, 2016Observed: 797.32 ft at 3:15PM May 28, 2016Observed: 797.32 ft at 3:30PM May 28, 2016Observed: 797.32 ft at 3:45PM May 28, 2016Observed: 797.3 ft at 4:00PM May 28, 2016Observed: 797.3 ft at 4:15PM May 28, 2016Observed: 797.3 ft at 4:30PM May 28, 2016Observed: 797.3 ft at 4:45PM May 28, 2016Observed: 797.28 ft at 5:00PM May 28, 2016Observed: 797.28 ft at 5:15PM May 28, 2016Observed: 797.28 ft at 5:30PM May 28, 2016Observed: 797.28 ft at 5:45PM May 28, 2016Observed: 797.25 ft at 6:00PM May 28, 2016Observed: 797.25 ft at 6:15PM May 28, 2016Observed: 797.25 ft at 6:30PM May 28, 2016Observed: 797.23 ft at 6:45PM May 28, 2016Observed: 797.23 ft at 7:00PM May 28, 2016Observed: 797.23 ft at 7:15PM May 28, 2016Observed: 797.22 ft at 7:30PM May 28, 2016Observed: 797.21 ft at 7:45PM May 28, 2016Observed: 797.22 ft at 8:00PM May 28, 2016Observed: 797.24 ft at 8:15PM May 28, 2016Observed: 797.23 ft at 8:30PM May 28, 2016Observed: 797.21 ft at 8:45PM May 28, 2016Observed: 797.21 ft at 9:00PM May 28, 2016Observed: 797.18 ft at 9:15PM May 28, 2016Observed: 797.18 ft at 9:30PM May 28, 2016Observed: 797.17 ft at 9:45PM May 28, 2016Observed: 797.16 ft at 10:00PM May 28, 2016Observed: 797.15 ft at 10:15PM May 28, 2016Observed: 797.15 ft at 10:30PM May 28, 2016Observed: 797.14 ft at 10:45PM May 28, 2016Observed: 797.13 ft at 11:00PM May 28, 2016Observed: 797.14 ft at 11:15PM May 28, 2016Observed: 797.14 ft at 11:30PM May 28, 2016Observed: 797.15 ft at 11:45PM May 28, 2016Observed: 797.13 ft at 12:00AM May 29, 2016Observed: 797.16 ft at 12:15AM May 29, 2016Observed: 797.16 ft at 12:30AM May 29, 2016Observed: 797.19 ft at 12:45AM May 29, 2016Observed: 797.21 ft at 1:00AM May 29, 2016Observed: 797.26 ft at 1:15AM May 29, 2016Observed: 797.31 ft at 1:30AM May 29, 2016Observed: 797.38 ft at 1:45AM May 29, 2016Observed: 797.48 ft at 2:00AM May 29, 2016Observed: 797.58 ft at 2:15AM May 29, 2016Observed: 797.72 ft at 2:30AM May 29, 2016Observed: 797.88 ft at 2:45AM May 29, 2016Observed: 798.05 ft at 3:00AM May 29, 2016Observed: 798.26 ft at 3:15AM May 29, 2016Observed: 798.46 ft at 3:30AM May 29, 2016Observed: 798.67 ft at 3:45AM May 29, 2016Observed: 798.85 ft at 4:00AM May 29, 2016Observed: 799.06 ft at 4:15AM May 29, 2016Observed: 799.26 ft at 4:30AM May 29, 2016Observed: 799.43 ft at 4:45AM May 29, 2016Observed: 799.6 ft at 5:00AM May 29, 2016Observed: 799.75 ft at 5:15AM May 29, 2016Observed: 799.88 ft at 5:30AM May 29, 2016Observed: 800.04 ft at 5:45AM May 29, 2016Observed: 800.15 ft at 6:00AM May 29, 2016Observed: 800.3 ft at 6:15AM May 29, 2016Observed: 800.4 ft at 6:30AM May 29, 2016Observed: 800.5 ft at 6:45AM May 29, 2016Observed: 800.58 ft at 7:00AM May 29, 2016Observed: 800.67 ft at 7:15AM May 29, 2016Observed: 800.72 ft at 7:30AM May 29, 2016Observed: 800.8 ft at 7:45AM May 29, 2016Observed: 800.89 ft at 8:00AM May 29, 2016Observed: 800.93 ft at 8:15AM May 29, 2016Observed: 800.96 ft at 8:30AM May 29, 2016Observed: 801.04 ft at 8:45AM May 29, 2016Observed: 801.05 ft at 9:00AM May 29, 2016Observed: 801.11 ft at 9:15AM May 29, 2016Observed: 801.15 ft at 9:30AM May 29, 2016Observed: 801.19 ft at 9:45AM May 29, 2016Observed: 801.22 ft at 10:00AM May 29, 2016Observed: 801.24 ft at 10:15AM May 29, 2016Observed: 801.26 ft at 10:30AM May 29, 2016Observed: 801.27 ft at 10:45AM May 29, 2016Observed: 801.29 ft at 11:00AM May 29, 2016Observed: 801.31 ft at 11:15AM May 29, 2016Observed: 801.33 ft at 11:30AM May 29, 2016Observed: 801.34 ft at 11:45AM May 29, 2016Observed: 801.36 ft at 12:00PM May 29, 2016Observed: 801.38 ft at 12:15PM May 29, 2016Observed: 801.36 ft at 12:30PM May 29, 2016Observed: 801.39 ft at 12:45PM May 29, 2016Observed: 801.38 ft at 1:00PM May 29, 2016Observed: 801.38 ft at 1:15PM May 29, 2016Observed: 801.4 ft at 1:30PM May 29, 2016Observed: 801.39 ft at 1:45PM May 29, 2016Observed: 801.41 ft at 2:00PM May 29, 2016Observed: 801.42 ft at 2:15PM May 29, 2016Observed: 801.42 ft at 2:30PM May 29, 2016Observed: 801.42 ft at 2:45PM May 29, 2016Observed: 801.43 ft at 3:00PM May 29, 2016Observed: 801.45 ft at 3:15PM May 29, 2016Observed: 801.45 ft at 3:30PM May 29, 2016Observed: 801.48 ft at 3:45PM May 29, 2016Observed: 801.48 ft at 4:00PM May 29, 2016Observed: 801.48 ft at 4:15PM May 29, 2016Observed: 801.48 ft at 4:30PM May 29, 2016Observed: 801.5 ft at 4:45PM May 29, 2016Observed: 801.52 ft at 5:00PM May 29, 2016Observed: 801.51 ft at 5:15PM May 29, 2016Observed: 801.53 ft at 5:30PM May 29, 2016Observed: 801.53 ft at 5:45PM May 29, 2016Observed: 801.52 ft at 6:00PM May 29, 2016Observed: 801.56 ft at 6:15PM May 29, 2016Observed: 801.55 ft at 6:30PM May 29, 2016Observed: 801.55 ft at 6:45PM May 29, 2016Observed: 801.58 ft at 7:00PM May 29, 2016Observed: 801.6 ft at 7:15PM May 29, 2016Observed: 801.6 ft at 7:30PM May 29, 2016Observed: 801.6 ft at 7:45PM May 29, 2016Observed: 801.64 ft at 8:00PM May 29, 2016Observed: 801.63 ft at 8:15PM May 29, 2016Observed: 801.64 ft at 8:30PM May 29, 2016Observed: 801.65 ft at 8:45PM May 29, 2016Observed: 801.67 ft at 9:00PM May 29, 2016Observed: 801.67 ft at 9:15PM May 29, 2016Observed: 801.71 ft at 9:30PM May 29, 2016Observed: 801.71 ft at 9:45PM May 29, 2016Observed: 801.71 ft at 10:00PM May 29, 2016Observed: 801.75 ft at 11:15PM May 29, 2016Observed: 801.77 ft at 11:30PM May 29, 2016Observed: 801.78 ft at 11:45PM May 29, 2016Observed: 801.79 ft at 12:00AM May 30, 2016Observed: 801.81 ft at 12:15AM May 30, 2016Observed: 801.82 ft at 12:30AM May 30, 2016Observed: 801.84 ft at 12:45AM May 30, 2016Observed: 801.85 ft at 1:00AM May 30, 2016Observed: 801.86 ft at 1:15AM May 30, 2016Observed: 801.89 ft at 1:30AM May 30, 2016Observed: 801.86 ft at 1:45AM May 30, 2016Observed: 801.91 ft at 2:00AM May 30, 2016Observed: 801.9 ft at 2:15AM May 30, 2016Observed: 801.91 ft at 2:30AM May 30, 2016Observed: 801.93 ft at 2:45AM May 30, 2016Observed: 801.96 ft at 3:00AM May 30, 2016Observed: 801.97 ft at 3:15AM May 30, 2016Observed: 801.98 ft at 3:30AM May 30, 2016Observed: 802 ft at 3:45AM May 30, 2016Observed: 801.98 ft at 4:00AM May 30, 2016Observed: 802 ft at 4:15AM May 30, 2016Observed: 802.04 ft at 4:30AM May 30, 2016Observed: 802.04 ft at 4:45AM May 30, 2016Observed: 802.05 ft at 5:00AM May 30, 2016Observed: 802.07 ft at 5:15AM May 30, 2016Observed: 802.07 ft at 5:30AM May 30, 2016Observed: 802.07 ft at 5:45AM May 30, 2016Observed: 802.1 ft at 6:00AM May 30, 2016Observed: 802.11 ft at 6:15AM May 30, 2016Observed: 802.1 ft at 6:30AM May 30, 2016Observed: 802.12 ft at 6:45AM May 30, 2016Observed: 802.12 ft at 7:00AM May 30, 2016Observed: 802.15 ft at 7:15AM May 30, 2016Observed: 802.15 ft at 7:30AM May 30, 2016Observed: 802.15 ft at 7:45AM May 30, 2016Observed: 802.18 ft at 8:00AM May 30, 2016Observed: 802.17 ft at 8:15AM May 30, 2016Observed: 802.17 ft at 8:30AM May 30, 2016Observed: 802.17 ft at 8:45AM May 30, 2016Observed: 802.18 ft at 9:00AM May 30, 2016Observed: 802.18 ft at 9:15AM May 30, 2016Observed: 802.19 ft at 9:30AM May 30, 2016Observed: 802.22 ft at 9:45AM May 30, 2016Observed: 802.21 ft at 10:00AM May 30, 2016Observed: 802.2 ft at 10:15AM May 30, 2016Observed: 802.21 ft at 10:30AM May 30, 2016Observed: 802.24 ft at 10:45AM May 30, 2016Observed: 802.23 ft at 11:00AM May 30, 2016Observed: 802.23 ft at 11:15AM May 30, 2016Observed: 802.23 ft at 11:30AM May 30, 2016Observed: 802.24 ft at 11:45AM May 30, 2016Observed: 802.27 ft at 12:00PM May 30, 2016Observed: 802.25 ft at 12:15PM May 30, 2016Observed: 802.27 ft at 12:30PM May 30, 2016Observed: 802.23 ft at 12:45PM May 30, 2016Observed: 802.26 ft at 1:00PM May 30, 2016Observed: 802.25 ft at 1:15PM May 30, 2016Observed: 802.26 ft at 1:30PM May 30, 2016Observed: 802.27 ft at 1:45PM May 30, 2016Observed: 802.25 ft at 2:00PM May 30, 2016Observed: 802.26 ft at 2:15PM May 30, 2016Observed: 802.29 ft at 2:30PM May 30, 2016Observed: 802.29 ft at 2:45PM May 30, 2016Observed: 802.26 ft at 3:00PM May 30, 2016Observed: 802.27 ft at 3:15PM May 30, 2016Observed: 802.26 ft at 3:30PM May 30, 2016Observed: 802.28 ft at 3:45PM May 30, 2016Observed: 802.28 ft at 4:00PM May 30, 2016Observed: 802.25 ft at 4:15PM May 30, 2016Observed: 802.27 ft at 4:30PM May 30, 2016Observed: 802.28 ft at 4:45PM May 30, 2016Observed: 802.28 ft at 5:00PM May 30, 2016Observed: 802.28 ft at 5:15PM May 30, 2016Observed: 802.28 ft at 5:30PM May 30, 2016Observed: 802.29 ft at 5:45PM May 30, 2016Observed: 802.28 ft at 6:00PM May 30, 2016Observed: 802.29 ft at 6:15PM May 30, 2016Highest Observation: 802.3 ft at 6:30PM May 30, 2016Observed: 802.29 ft at 6:45PM May 30, 2016Observed: 802.28 ft at 7:00PM May 30, 2016Observed: 802.26 ft at 7:15PM May 30, 2016Observed: 802.28 ft at 7:30PM May 30, 2016Highest Observation: 802.3 ft at 7:45PM May 30, 2016Observed: 802.28 ft at 8:00PM May 30, 2016Observed: 802.28 ft at 8:15PM May 30, 2016Observed: 802.28 ft at 8:30PM May 30, 2016Observed: 802.28 ft at 8:45PM May 30, 2016Observed: 802.29 ft at 9:00PM May 30, 2016Highest Observation: 802.3 ft at 9:15PM May 30, 2016Observed: 802.26 ft at 9:30PM May 30, 2016Observed: 802.29 ft at 9:45PM May 30, 2016Observed: 802.28 ft at 10:00PM May 30, 2016Highest Forecast: 802.4 ft 1:00AM May 31, 2016Highest Forecast: 802.4 ft 7:00AM May 31, 2016Forecast: 802.3 ft 1:00PM May 31, 2016Forecast: 802.3 ft 7:00PM May 31, 2016Forecast: 802.2 ft 1:00AM Jun 01, 2016Forecast: 802.1 ft 7:00AM Jun 01, 2016Forecast: 802 ft 1:00PM Jun 01, 2016Forecast: 801.9 ft 7:00PM Jun 01, 2016Forecast: 801.7 ft 1:00AM Jun 02, 2016Forecast: 801.5 ft 7:00AM Jun 02, 2016Forecast: 801.4 ft 1:00PM Jun 02, 2016Forecast: 801.2 ft 7:00PM Jun 02, 2016Forecast: 801.1 ft 1:00AM Jun 03, 2016Forecast: 801 ft 7:00AM Jun 03, 2016Forecast: 800.9 ft 1:00PM Jun 03, 2016Forecast: 800.8 ft 7:00PM Jun 03, 2016Forecast: 800.7 ft 1:00AM Jun 04, 2016Forecast: 800.5 ft 7:00AM Jun 04, 2016Forecast: 800.4 ft 1:00PM Jun 04, 2016Forecast: 800.3 ft 7:00PM Jun 04, 2016Forecast: 800.1 ft 1:00AM Jun 05, 2016Forecast: 800 ft 7:00AM Jun 05, 2016Forecast: 799.8 ft 1:00PM Jun 05, 2016Forecast: 799.7 ft 7:00PM Jun 05, 2016Forecast: 799.5 ft 1:00AM Jun 06, 2016Forecast: 799.3 ft 7:00AM Jun 06, 2016Forecast: 799.2 ft 1:00PM Jun 06, 2016Forecast: 799 ft 7:00PM Jun 06, 2016Minnesota DNRHLLM5(plotting HGIRG) Graph Created (11:03PM May 30, 2016)ObservedForecast (issued 7:11PM May 30)Latest observed value: 802.28 ft at 10:00 PM CDT 30-May-2016. Flood Stage is 802 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Gauge reading affected by reservoir operations.

NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

NOTE: Forecasts for the Two Rivers River at Hallock are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - at Lake Bronson Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 810
Moderate Flood Stage: 806
Flood Stage: 802
Action Stage: 800
Low Stage (in feet): 0

Historic Crests
(1) 810.70 ft on 04/21/1997
(2) 810.26 ft on 05/30/2010
(3) 809.50 ft on 04/23/1996
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 804.95 ft on 05/19/2015
(2) 807.70 ft on 04/23/2014
(3) 807.29 ft on 05/01/2013
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

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
814 Top of Dike, Reach 2, south end of Cemetery, 6th St. S.
813 Top of Dike, Reach 3, north end of cemetery by 4th St. S.
812 Top of Dike, Reach 4, north of T.H. 175.100 yr flood elevation at T.H. 175.
810 Major Flood Stage.
809 City crew on shifts for manning of pumps and checking lift stations.
808 Storm sewer valve at Reach 3 (north Cemetary) is closed.
807 Storm sewer valves at 175 bridge, 4th Street South and the Cemetery, are closed and portable pumps are set up.
806 Moderate FLood Stage.Storm sewers start backing up.Storm sewer valve at T.H. 175 Bridge closed. Lift Pump inspected.
804.5 Backup at Reach 2 Dike, Cemetery road at 6th St. S. - Shut Storm Valve.
802 Flood Warning Stage for Minor flooding.NWS starts to issue Flood Warnings and 7-day river level forecasts.Hallock Dam spillway at Gilbert Park is closed to the Public.Culvets with flappers are checked.Bankfull Stage.
800 Action Stage. NWS starts to issue High Water Notices and 7-day river level forecasts.Hallock Dam spillway at Gilbert Park begins to flow.
797 City takes precautionary actions.
Photos
(1) Gilbert Park (Hallock Dam spillway) at 806.75 - just above moderate Flood Stage.
About This Location Collapse

Latitude: 48.775556° N, Longitude: 96.937500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 802 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 0 ft 802 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:

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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
Eastern North Dakota/Grand Forks Weather Forecast Office
4797 Technology Circle
Grand Forks, ND 58203
(701) 772-0720
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Page last modified: 13-Aug-2015 2:15 AM
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