Skip Navigation Link  
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
Navigation Bar End Cap


This probabilistic forecast is issued by the North Central River Forecast Center.
tab left off Hydrograph tab right off tab left off River at a Glance tab right off tab left off Download tab right off tab left on tab right on
About this graph
Forecasts for the Two Rivers River at Hallock are issued as needed during times of high water, but are not routinely available.

Vertical Datum references a local datum

Return to Area Map

Zoom Level:16
Flood Categories (in feet)
Major Flood Stage: 810
Moderate Flood Stage: 806
Flood Stage: 802
Action Stage: 800
Low Stage (in feet): -9999

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) 807.19 ft on 05/01/2022 (P)
(2) 796.84 ft on 05/22/2021 (P)
(3) 808.51 ft on 04/03/2020 (P)
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
KML Image
Gauge LocationGauge Map Marker
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 TH175. 100-yr flood elevation at TH175.
809 City crews manning pumps and checking lift stations.
808 Storm sewer valve at Reach 3 (north cemetery) is closed.
807 Storm sewer valves at 175 bridge, 4th St S, and the cemetery are closed and portable pumps are set up.
806 MODERATE FLOOD STAGE. Storm sewers start backing up. Storm sewer valve at TH175 bridge closed. Lift pump inspected.
804.5 Backup at Reach 2 Dike, cemetery road at 6th St S. Shut storm valve.
802 MINOR FLOOD STAGE. Hallock Dam spillway at Gilbert Park closed to the public. Culverts with flappers are checked.
800 ACTION STAGE/FORECAST SERVICE STAGE. Hallock Dam spillway at Gilbert Park begins to flow.
797 City takes precautionary actions.

Other Real-time and/or Archive Data Sources:

Additional Information Collapse
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
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:29 PM
Privacy Policy
About Us
Career Opportunities