Little Calumet River At Porter flow report
As of July 13, 2026, Little Calumet River At Porter is flowing at 60 cfs with a gage height of 3.42 ft, receding 9% over the past 24 hours. Source: USGS gauge #04094000, refreshed throughout the day.
Historical Data
Little Calumet River At Porter at a glance
How Little Calumet River At Porter is running right now, where it sits on the map, and the key gauge stats.
Little Calumet River At Porter is flowing at 60 cfs, with the water sitting 3.42 ft at the gage. Flow is down 9% since yesterday as the gauge recedes.
This is USGS gauge #04094000 in Indiana. Over the past 10 days the average has been 194 cfs, peaking at 650 cfs.
Over the next 5 days, Little Calumet River At Porter is expected to recede from today's 60 cfs, toward roughly 50 cfs by 2026-07-18 (likely range 32-79 cfs) -- drier than normal for the date.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Indiana flow report.
Streamflow Forecast
Powered by PULSE — Snoflo’s Predictive Unified Learning & Simulation Engine, which learns from how this river has answered every past storm, snowmelt, and dry spell to forecast where it’s headed with a precision generic models can’t match.
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.
Little Calumet River At Porter
The river is fed by several tributaries and is affected by several dams, including the Burns Waterway and the Indiana Dunes State Park Dam. Seasonal trends show that the river has higher flow rates in the spring due to snowmelt and rainfall, and lower flow rates in the summer and fall. Interesting facts about the hydrology of the Little Calumet River include the presence of several endangered species, including the Indiana bat and the eastern sand darter, which rely on the river for habitat. Additionally, the river is used for recreational activities such as fishing and kayaking.
Nearby streamflow levels
Cross-check Little Calumet River At Porter's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Little Calumet River At Porter | 60 cfs |
| Burns Ditch At Portage | 487 cfs |
| Deep River At Lake George Outlet At Hobart | 93 cfs |
| Trail Creek At Michigan City Harbor | 717 cfs |
| Trail Creek At Michigan City | 50 cfs |
| Grand Calumet River At Industrial Hwy At Gary | 576 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Little Calumet River At Porter. 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 |
|---|---|
| Portage 2.4 Nnw | 0 in |
| Chesterton 4.2 E | 0 in |
| Valparaiso 1.8 Nw | 2 in |
| Valparaiso 2.2 Wnw | 0 in |
| Valparaiso 0.9 Nnw | 0 in |
| Valparaiso 2.0 Wsw | 0 in |
Plan a trip
Reservoirs, boat launches, river runs, and fishing spots within driving distance of Little Calumet River At Porter.
Boat launches
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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 Little Calumet River At Porter in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Little Calumet River At Porter crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Little Calumet River At Porter
Where does the streamflow data for Little Calumet River At Porter come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 04094000. 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 Little Calumet River At Porter 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 Little Calumet River At Porter report
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