Embarras River At Ste. Marie Flow Report
As of August 3, 2026, Embarras River At Ste. Marie is flowing at 225 cfs with a gage height of 1.85 ft, rising 7% over the past 24 hours. Source: USGS gauge #03345500, refreshed throughout the day.
Historical Data
Embarras River At Ste. Marie at a glance
How Embarras River At Ste. Marie is running right now, where it sits on the map, and the key gauge stats.
Embarras River At Ste. Marie is flowing at 225 cfs, with the water sitting 1.85 ft at the gage. Flow is up 7% since yesterday — a rising hydrograph.
This is USGS gauge #03345500 in Illinois. Over the past 10 days the average has been 257 cfs, peaking at 322 cfs.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Illinois flow report.
Engineering Data
Flow-duration statistics and observed peak-flow context computed from this gauge’s complete daily record (USGS #03345500).
Estimate flows at an ungauged site
Drainage-area ratio transfer from this gauge . Most reliable for hydrologically similar sites in the same watershed with area ratios between roughly 0.5 and 1.5.
Percentiles are flow-duration values computed from this gauge’s observed daily record as archived by Snoflo. Return periods are Weibull plotting-position estimates from observed annual maxima, provided as general reference context only. Always verify against official USGS NWIS records. Part of Snoflo for Engineering.
Streamflow Forecast
Over the next 5 days, Embarras River At Ste. Marie is expected to recede from today's 211 cfs, toward roughly 167 cfs by 2026-08-07 (likely range 45-620 cfs) -- running well below the seasonal normal.
Powered by PULSE — Snoflo’s forecast engine, trained on this gauge’s full record of storms, snowmelt, and dry spells.
| Date | Expected (p50) | Likely range (p25–p75) | vs normal | Projected stage |
|---|
How does this compare to past years?
Year-over-year overlay, annual peak discharge, the full distribution of daily flows on record, and the gauge's rating curve.
Weather Forecast
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day forecast
Daily temperatures, snow, and rain projected over the next two weeks.
Embarras River At Ste. Marie
Marie, IL stream gauge measures the water flow of the Embarras River, which is a tributary of the Wabash River. The river is mostly fed by agricultural runoff, and its flow is affected by rainfall and seasonal changes. There are no significant dams or tributaries in the immediate vicinity of the gauge. During spring and summer, the river experiences higher flows due to increased precipitation and agricultural runoff. Interestingly, the river is named after the French word "embarras," meaning obstacle or hindrance, likely due to its meandering path and tendency to flood.
Nearby streamflow levels
Cross-check Embarras River At Ste. Marie's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Embarras River At Ste. Marie | 225 cfs |
| North Fork Embarras River Near Oblong | 24 cfs |
| Embarras River At Lawrenceville | 401 cfs |
| Wabash River At Riverton Ind | 4,770 cfs |
| Little Wabash River Below Clay City | 158 cfs |
| Busseron Creek Near Carlisle | 34 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Embarras River At Ste. Marie. Spring snowmelt is the dominant driver of streamflow in mountain basins -- a deep snowpack upstream means more runoff later in the season.
| SNOTEL station | Snowpack |
|---|---|
| Graysville 5 Wnw | 0 in |
| Casey | 0 in |
| Clay City 6sse | 0 in |
| Marshall 4.6 W | 0 in |
| Mount Carmel 4.2 Nw | 0 in |
| Effingham 3sw | 0 in |
Plan a trip
Reservoirs, boat launches, river runs, and fishing spots within driving distance of Embarras River At Ste. Marie.
River levels & flood safety
- Read the level before you go
- A river that's runnable at one flow can be deadly at another. Check current discharge and gage height — like the values shown above — against the flood-stage thresholds, and remember levels can spike fast after rain or a dam release.
- Respect cold water
- Snowmelt rivers run cold even in summer. Sudden immersion triggers cold-water shock and saps strength within minutes. Wear a PFD, dress for the water temperature (not the air), and never wade or paddle alone.
- Watch for swiftwater hazards
- Strainers (downed trees), undercut rocks, and low-head dams are the deadliest features on moving water. High, fast, muddy water hides them. If in doubt, scout from shore and portage.
- Mind flash floods & releases
- Narrow canyons can flood from a storm miles upstream, and dam-controlled reaches can rise without warning. Know the forecast, the release schedule, and your exit before you launch.
Track Embarras River At Ste. Marie in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Embarras River At Ste. Marie crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Embarras River At Ste. Marie
What is the Embarras River At Ste. Marie flow rate right now?
As of August 3, 2026, Embarras River At Ste. Marie is flowing at 225 cfs. The live value, gage height, and 24-hour trend are shown at the top of this page.
Is the Embarras River At Ste. Marie running high or low right now?
Check the percent of median figure on this page: above 100% means Embarras River At Ste. Marie is running higher than normal for the date, below 100% means lower. The 24-hour trend shows whether it's rising or falling.
Where does the streamflow data for Embarras River At Ste. Marie come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 03345500. Snoflo refreshes the time series throughout the day. Forecasts come from the NOAA / yr.no feed Snoflo's iOS app uses.
How often is the report updated?
USGS gauges report continuously (typically every 15 minutes). Snoflo pulls fresh values throughout the day — look for the "as of" timestamp on the streamflow hero card.
What's the difference between discharge and gage height?
Discharge (cubic feet per second, or cfs) is the volume of water flowing past the gauge each second. Gage height is how high the water sits at the gauge (feet). They're related by a rating curve specific to each gauge — higher water means more flow, but the exact ratio depends on channel shape.
How is "percent of median" calculated?
Today's discharge is compared to the historical median discharge on this calendar day across the gauge's full record. 100% = right on median; 200% = a very high year; 30% = a drought-level low.
What are flood stages, and is this river safe right now?
Flood stages are NWS-defined gage-height thresholds — Action, Minor, Moderate, Major — marking when nearby roads or floodplains start to be affected. "Safe" depends on your activity and skill: a level that's a fun paddle for an expert can be lethal for a wader. Always check the current level against the thresholds above and the safety links, and when in doubt, stay off the water.
Can I get alerts when Embarras River At Ste. Marie rises?
Yes — flow alerts are managed in the Snoflo iOS app. Favorite this gauge, set a streamflow threshold (e.g. "alert me when discharge crosses 5,000 cfs"), and you'll get a push the moment USGS reports the crossing.
Access the free Embarras River At Ste. Marie report
Create your free account to track this river — and everything else you love on the water.
- Flow alerts — get pinged the moment this river hits your range
- Save favorites — every river, lake & snowpack in one place
- Full history & forecasts — plus the free iPhone app