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 Cottonwood River (MN) at New Ulm are issued as needed during times of high water, but are not routinely available.
Return to Area Map

Upstream Gauge - above Springfield Upstream Gauge Downstream Gauge Downstream Gauge - at Mankato
Zoom Level:16
Flood Categories (in feet)
Major Flood Stage: 16
Moderate Flood Stage: 13
Flood Stage: 11
Action Stage: 9
Low Stage (in feet): -9999

Historic Crests
(1) 20.86 ft on 04/08/1965
(2) 19.64 ft on 07/06/2018 (P)
(3) 19.15 ft on 04/10/1969
(4) 18.95 ft on 09/26/2010
(5) 18.90 ft on 06/19/1993
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 14.11 ft on 09/14/2019 (P)
(2) 17.91 ft on 03/24/2019 (P)
(3) 19.64 ft on 07/06/2018 (P)
(4) 15.20 ft on 04/25/2018 (P)
(5) 11.61 ft on 05/22/2017
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.64 ft on 08/01/1988
(2) 0.72 ft on 11/20/1964
(3) 0.75 ft on 09/08/1976
(4) 0.80 ft on 11/27/1952
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
22 Swimming pond at Flandrau SP closed and sandbagged for flood protection.
19 All trails at Flandrau SP closed due to flooding
18 Flood waters reach the back of the campground at Flandrau SP
13.1 Flood waters begin to impact Cottonwood Street west of the river.
11 Flood waters begin to impact low lying areas...and some roads along the river.
(1) Looking upstream (Oct 2015)
(2) Looking downstream (Oct 2015)
(3) Staff gage
(4) Gage Bridge

Other Real-time and/or Archive Data Sources:

Additional Information Collapse
Gauge maintained by the USGS
How low could the river get?
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
Twin Cities/Chanhassen Weather Forecast Office
1733 Lake Drive West
Chanhassen, MN 55317-8581
(952) 361-6708
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:29 PM
Privacy Policy
About Us
Career Opportunities