River Report

Maumee River river

5 streamgauges 102% of normal Last updated 2026-05-26
Aggregate flow
22,270cfs
% of normal
102%
Daily volume
44,172AF
Seasonal avg
21,884cfs

Total streamflow across the Maumee River was last observed at 22,270 cfs, and is expected to yield approximately 44,172 acre-ft of water today; about 102% of normal. Average streamflow for this time of year is 21,884 cfs, with recent peaks last observed on 2015-06-29 when daily discharge volume was observed at 207,300 cfs.

Maximum discharge along the river is currently at the Maumee River At Waterville Oh reporting a streamflow rate of 8,920 cfs. However, the streamgauge with the highest stage along the river is the Maumee River At Antwerp Oh with a gauge stage of 9.19 ft. This river is monitored from 5 different streamgauging stations along the Maumee River, the highest being situated at an altitude of 763 ft, the Maumee River At Fort Wayne.

Max discharge

Maumee River At Waterville Oh

8,920cfs
Highest stage

Maumee River At Antwerp Oh

9.19ft
Highest-elevation gauge

Maumee River At Fort Wayne

763ft
Aggregate trend

River streamflow levels

Daily aggregate streamflow across every monitored gauge along the Maumee River. Use the range buttons to zoom in on a specific period.

Total streamflow

Sum of all monitored streamgauges · daily

Per-gauge breakdown

Every streamgauge along the Maumee River

All 5 USGS gauges Snoflo tracks for this river, with current flow, stage, recent change, percent of normal, and the gauge's all-time min / max. Click any header to sort. Cells are heatmapped relative to the column min/max -- darker blue = higher.

Streamgauge Streamflow (cfs) Gauge stage (ft) 24h Δ (%) % Normal Min (cfs) Max (cfs) Elevation (ft)
Maumee River At Fort Wayne IN
USGS 04182900
1,340 4.05 -18.3 132% 13 18,200 763
Maumee River At New Haven IN
USGS 04183000
1,430 5.70 -17.8 136% 61 20,500 746
Maumee River At Antwerp Oh OH
USGS 04183500
1,790 9.19 -25.1 129% 89 21,500 702
Maumee River Near Defiance Oh OH
USGS 04192500
8,790 3.78 -22.9 288% 88 89,400 659
Maumee River At Waterville Oh OH
USGS 04193500
8,920 5.06 -20.4 214% 24 108,000 598
Annual peaks

Maximum streamflow discharge by year

The single highest aggregate discharge recorded each year. Spotting the multi-year trend reveals droughts vs. wet cycles long before the headline daily flow does.

Annual peak discharge

From the river's full record · one point per water year

Profile

Streamflow elevation profile

Each bubble is one gauge along the river, plotted by current streamflow (x-axis) vs elevation (y-axis), sized by gauge stage. Reading top-to-bottom traces the river from headwaters down to its mouth -- you can see flow accumulate as elevation drops.

Elevation vs streamflow

One point per monitored gauge · bubble size = gauge stage

About this river

Maumee River

The Maumee River is a major waterway that runs through the states of Indiana and Ohio, flowing into Lake Erie. It is approximately 137 miles long and is rich in history, having served as a critical transportation route during the early 19th century. Today, the river is used for many recreational activities such as fishing and boating, and also plays a significant role in the agricultural industry by providing irrigation and water for livestock. The river is also home to several reservoirs and dams, including the Fort Wayne Dam, Independence Dam, and Grand Rapids Dam, which help to regulate water flow and maintain water levels for various purposes. Despite facing challenges such as pollution and erosion, efforts are being made to preserve and protect the Maumee River and its surrounding eco-system.

Around the river

Recreation along the Maumee River

Fishing access and paddle runs Snoflo tracks within the watershed.

Track the Maumee River in the Snoflo app

Set per-gauge push alerts (e.g. "alert me when flow at the Russian R Nr Healdsburg crosses 5,000 cfs"), and Snoflo's iOS app pushes the moment USGS reports the crossing.

FAQ

About the Maumee River

Where does the data for the Maumee River come from?

Streamflow and gauge stage data are sourced from the U.S. Geological Survey (USGS) National Water Information System. The aggregate flow shown at the top of the page is computed by Snoflo as the sum of all monitored gauges along the river.

How is "percent of normal" calculated?

Today's aggregate streamflow is compared to the historical average aggregate streamflow on this calendar day across the river's full record. 100% means right on average; values above 100% indicate above-normal flow (wet year); values below indicate below-normal (dry year or drought).

Why are some gauges showing very different flows?

Gauges along a river measure flow at different points: headwater gauges read what's coming off the snowpack or mountain runoff; downstream gauges integrate everything upstream, including tributary inputs. Wide spreads usually mean a tributary is contributing significantly between gauges.

What's the elevation profile chart showing?

Each bubble is one gauge along the river, plotted by streamflow (x-axis) and elevation (y-axis), sized by gauge stage. Reading top-down traces the river from headwaters to mouth -- you can see flow build as elevation drops.

Can I get alerts when a specific gauge crosses a threshold?

Yes -- alerts are managed in the Snoflo iOS app on a per-gauge basis. Open any individual streamgauge from the table above and favorite it to set a discharge threshold.