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Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.

Hydrograph River at a Glance Download
St. Joseph River (OH/IN) at Montpelier Stage (ft)Flow (kcfs)Highest Observation: 2.88 ft at 11:00AM Sep 23, 2023Observed: 2.87 ft at 2:00PM Sep 26, 2023National Weather Service Northern IndianaMONO1(plotting HGIRZ) Graph Created (6:38AM Sep 28, 2023)ObservedLatest observed value: 2.87 ft at 2:00 PM EDT 26-Sep-2023. Flood Stage is 12 ft
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Tabular Data (UTC)
Tabular Data (EDT)
XML Data
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Datum: Not Available
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.

NOTE: Forecasts for the St. Joseph River (OH/IN) at Montpelier are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - at Territorial Road near Waldron MI Upstream Gauge Downstream Gauge Downstream Gauge - near Newville
Flood Categories (in feet)
Major Flood Stage: 16
Moderate Flood Stage: 13
Flood Stage: 12
Action Stage: 9
Low Stage (in feet): -9999

Historic Crests
(1) 17.40 ft on 02/25/1985
(2) 17.00 ft on 12/31/1990
(3) 16.20 ft on 02/02/1982
(4) 16.10 ft on 01/01/1991
(5) 16.00 ft on 06/02/1989
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 15.45 ft on 05/20/2020 (P)
(2) 14.76 ft on 05/03/2019
(3) 15.90 ft on 02/22/2018 (P)
(4) 12.67 ft on 12/17/2011
(5) 12.33 ft on 12/07/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 1.50 ft on 09/04/1946
(2) 1.50 ft on 08/30/1948
(3) 1.50 ft on 09/02/1948
Show More Low Water Records

For more information on your flood risk go to

Zoom Level:16
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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
18.5 This is a very dangerous situation. The entire village of Montpelier can expect 2 to 3 feet of water. Areas outside Montpelier will be totally inundated.
18 Montpelier is flooded by 1 to 2 feet of water and outlying farm buildings are totally inundated.
17.5 Flood waters will overtop the dikes in Montpelier. Homes and businesses along Opdyke, Moore, and Madison will be affected.
16.5 Flood waters will approach the top of the Montpelier Dikes with several roads becoming impassible. Water begins to hit the bottom of the bridge at the gage site.
15 Several roadways are closed including County Road 10 at County Road K.
14 County Road K, one mile southwest of Montpelier is flooded. Flood waters affect the southeast side of Pioneer and cover large areas of low land and agricultural land near the river.
13 County Road K, one mile southwest of Montpelier begins to flood. Some flooding begins to affect the village of Pioneer. Significant low land and agricultural flooding occurs near the river.
12 Flooding of low land and agricultural land begins near the river.
(1) Looking Upstream
(2) Looking Downstream
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Latitude: 41.589600° N, Longitude: 84.612300° 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)
(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 835.561 ft 847.561 ft  
Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 10 Day (NAEFS) River Forecast VS. River Potential
HEFS Ensemble NAEFS Ensemble Outlook vs. Forecast

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.

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Hydrologic Resources Additional Resources
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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.
NWS Information
National Weather Service
Northern Indiana Weather Forecast Office
7506 E 850 N
Syracuse, IN 46567
(574) 834-1104
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