West Branch Middle Brook Near Martinsville flow report
As of July 13, 2026, West Branch Middle Brook Near Martinsville is flowing at 0 cfs with a gage height of 2.01 ft. Source: USGS gauge #01403150, refreshed throughout the day.
Historical Data
West Branch Middle Brook Near Martinsville at a glance
How West Branch Middle Brook Near Martinsville is running right now, where it sits on the map, and the key gauge stats.
West Branch Middle Brook Near Martinsville is flowing at 0 cfs, with the water sitting 2.01 ft at the gage.
This is USGS gauge #01403150 in New Jersey. Over the past 10 days the average has been 1 cfs, peaking at 3 cfs.
Over the next 5 days, West Branch Middle Brook Near Martinsville Nj is expected to recede from today's 0 cfs, toward roughly 0 cfs by 2026-07-17 (likely range 0-1 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 New Jersey 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.
West Branch Middle Brook Near Martinsville
The primary constituents and flow providers for the brook are precipitation and groundwater. The stream has several adjacent tributaries, including Budds Brook, which can potentially cause flooding during heavy rainfall. The stream's flow is highest in the spring, during snowmelt, and during heavy rain, while it is lowest in the summer and fall. There are no major dams on the stream. Interesting facts about the hydrology of the West Branch Middle Brook include its designation as a Priority Water Body due to its ecological significance, and its classification as a Trout Production Stream, meaning it supports a self-sustaining population of wild trout.
Nearby streamflow levels
Cross-check West Branch Middle Brook Near Martinsville's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| West Branch Middle Brook Near Martinsville Nj | 0 cfs |
| Raritan River At Manville Nj | 318 cfs |
| Bound Bk At Middlesex Nj | 172 cfs |
| Raritan River Below Calco Dam At Bound Brook Nj | 507 cfs |
| North Branch Raritan River Near Raritan Nj | 161 cfs |
| Passaic River Near Millington Nj | 30 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near West Branch Middle Brook Near Martinsville. 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 |
|---|---|
| Mendham 1.5 W | 0 in |
| Clinton Twp 3.9 N | 0 in |
| Califon 0.6 Nw | 0 in |
| Flemington 5 Nnw | 0 in |
| Randolph Twp 2.0 E | 0 in |
| Mount Arlington 0.8 S | 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 West Branch Middle Brook Near Martinsville in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when West Branch Middle Brook Near Martinsville crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About West Branch Middle Brook Near Martinsville
Where does the streamflow data for West Branch Middle Brook Near Martinsville come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 01403150. 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 West Branch Middle Brook Near Martinsville 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 West Branch Middle Brook Near Martinsville 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