Mill Creek Below Sheley Tunnel flow report
As of July 13, 2026, Mill Creek Below Sheley Tunnel is flowing at 2 cfs with a gage height of 1.33 ft. Source: USGS gauge #09183600, refreshed throughout the day.
Historical Data
Mill Creek Below Sheley Tunnel at a glance
How Mill Creek Below Sheley Tunnel is running right now, where it sits on the map, and the key gauge stats.
Mill Creek Below Sheley Tunnel is flowing at 2 cfs, with the water sitting 1.33 ft at the gage.
This is USGS gauge #09183600 in Utah. Over the past 10 days the average has been 3 cfs, peaking at 3 cfs.
Over the next 5 days, Mill Creek Below Sheley Tunnel is expected to hold near today's 2 cfs, toward roughly 2 cfs by 2026-07-17 (likely range 2-4 cfs) -- running well below the seasonal normal.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Utah 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.
Mill Creek Below Sheley Tunnel
The gauge is located downstream from the Sheley Tunnel, which diverts water from the Provo River. There are no major tributaries or dams in the immediate vicinity of the gauge. Seasonal trends show higher flows in the spring due to snowmelt, and lower flows in the summer and fall. Interestingly, the Mill Creek watershed was the site of a significant flash flood in 1998, which caused extensive damage to homes and infrastructure in the area. Monitoring the flow of the stream is important for flood prevention and management in the watershed.
Nearby streamflow levels
Cross-check Mill Creek Below Sheley Tunnel's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Mill Creek Below Sheley Tunnel | 2 cfs |
| Mill Creek At Sheley Tunnel | 3 cfs |
| Mill Creek Blw Pack Creek Nr Mouth At Moab | 0 cfs |
| Castle Creek Below Castle Valley Near Moab | 4 cfs |
| Colorado River At Potash | 1,600 cfs |
| Colorado River Near Cisco | 1,790 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Mill Creek Below Sheley Tunnel. 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 |
|---|---|
| Lasal Mountain-Lower | 0 in |
| Lasal Mountain-Lower | 0 in |
| Lasal Mountain | 0 in |
| Lasal Mountain | 0 in |
| Nohrsc Gold Basin | 0 in |
| Castle Valley 1se | 0 in |
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 Mill Creek Below Sheley Tunnel in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Mill Creek Below Sheley Tunnel crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Mill Creek Below Sheley Tunnel
Where does the streamflow data for Mill Creek Below Sheley Tunnel come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 09183600. 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 Mill Creek Below Sheley Tunnel 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 Mill Creek Below Sheley Tunnel report
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