National Weather Service Advanced Hydrologic Prediction Service

weather.gov

Home

News

Organization

Search by city or zip code. Press enter or select the go button to submit request

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

Web Portal Changes:

AHPS - water.weather.gov- Scheduled operations ends on Tuesday, May 28th, 2024
Please see water.noaa.gov/. Bookmark it NOW! The pages will automatically redirect to water.noaa.gov until May 28, 2025.
To go to a specific gauge location - use water.noaa.gov/gauges/NWSLI - where NWSLI is the five character ID of your favorite location.
Other Important URL changes - Service Change Notice 24-29

Please visit https://www.weather.gov/owp/operations for more information.

Weather Forecast Office Northern Indiana, IN

Ohio River Forecast Center

Hydrograph

River at a Glance

Download

Inundation
Mapping

Printable Image

About this graph

Tabular Data (UTC)

Tabular Data (EDT)

Datum: NAVD88

Metadata

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. Marys River near Fort Wayne are issued as needed during times of high water, but are not routinely available.

Return to Area Map

Upstream Gauge

Downstream Gauge

Flood Categories (in feet)

Major Flood Stage:	19
Moderate Flood Stage:	17
Flood Stage:	14
Action Stage:	12
Low Stage (in feet):	-9999

Historic Crests
(1) 21.20 ft on 07/09/2003
(2) 19.88 ft on 06/19/2015
(3) 19.66 ft on 03/14/1982
(4) 19.06 ft on 01/14/2005
(5) 18.33 ft on 02/26/1985
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.91 ft on 07/17/2021
(2) 13.21 ft on 01/12/2020
(3) 15.27 ft on 04/29/2019
(4) 15.27 ft on 04/29/2019
(5) 12.84 ft on 02/21/2018
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.77 ft on 10/04/2008
(2) 0.78 ft on 06/29/2012
(3) 0.80 ft on 10/29/1999
Show More Low Water Records

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

Show FEMA's National Flood Hazard Layers

Zoom Level:16

	Gauge Location	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

If you notice any errors in the below information, please contact our Webmaster
22	Structural damage is done to homes and businesses on the south side of Fort Wayne near the Saint Mary's River. Record flood was set on July 9, 2003 when the river reached 21.2 feet.
20	A major flood is in progress and water is nearing the top of many levees.
19	Flooding reaching major category with isolated evacuations becoming necessary. Some roads and bridges are closed at this level.
18	An increasing number of city streets flood, and evacuations may become necessary. Property damage begins in more areas at this level.
17	Some residents in the Winchester Road area may need to be evacuated. Property damage begins in some areas at this level.
15	Flooding occurs on the lowest unprotected city streets, park drives and county roads.
14	Flooding occurs in parks and low farmland throughout southern Allen County. The City of Fort Wayne starts 24 hour flood fighting procedures.
Photos (1) Upstream view from gauge site (2) Downstream view from gauge site

About This Location

Latitude: 40.987800° N, Longitude: 85.111900° W, Horizontal Datum: NAD27

River Stage Reference Frame	Gauge Height	Flood Stage	Uses
NWS stage	0 ft	14 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	748.41	762.41	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	Not Available	Not Available

Current/Historical Observations:

U.S. Geological Survey (USGS) Data and Site Info for Fort Wayne

Additional Information

Gauge zero transitioned from 748.97 NGVD29 to 748.41 NAVD88 on July 25, 2012. 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

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.

To use the USGS flood inundation mapper tool, please visit the following web address: http://wim.usgs.gov/FIMI/FloodInundationMapper.html

Resources

Hydrologic Resources

Additional Resources

Collaborative Agencies

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
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:30 PM

Disclaimer
Credits
Glossary