Middle River Near Grottoes flow report

Virginia, USA USGS #01625000 ↗

As of July 13, 2026, Middle River Near Grottoes is flowing at 144 cfs with a gage height of 3.56 ft, rising 16% over the past 24 hours. Source: USGS gauge #01625000, refreshed throughout the day.

Stale data This gauge hasn’t reported in days (last reading unknown). The readings below may not reflect current conditions.
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Right now · latest observation
Middle River Near Grottoes
USGS gauge #01625000
144 cfs streamflow
Latest reading from this gauge.
Gage height
3.56ft
Water temp
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% of median
Since yesterday
↑ 16%
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Conditions summary

Middle River Near Grottoes at a glance

How Middle River Near Grottoes is running right now, where it sits on the map, and the key gauge stats.

Middle River Near Grottoes is flowing at 144 cfs, with the water sitting 3.56 ft at the gage. Flow is up 16% since yesterday — a rising hydrograph.

This is USGS gauge #01625000 in Virginia. Over the past 10 days the average has been 125 cfs, peaking at 186 cfs.

Over the next 5 days, Middle River Near Grottoes is expected to hold near today's 124 cfs, toward roughly 116 cfs by 2026-07-17 (likely range 78-172 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 Virginia flow report.

Middle River Near Grottoes on the map Open map →
Site IDUSGS 01625000
Last updated2026-07-13
Gage height, ft3.56 ft
Streamflow, ft³/s144.0 ft3/s
Max recorded8,510 cfs
Streamflow outlook

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.

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Historical context

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.

Detailed forecast

Weather Forecast

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day forecast

Daily temperatures, snow, and rain projected over the next two weeks.

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About this location

Middle River Near Grottoes

The river is fed by several smaller tributaries and dams, including the Mossy Creek and South River. Seasonal trends show that the river flow is highest during the spring months due to snowmelt and precipitation. Interestingly, the Middle River has been designated as a "biological hotspot" due to its unique ecology and high concentration of rare and endangered species. Additionally, the river supports numerous recreational activities, such as fishing and kayaking. Understanding the hydrology of the Middle River is important for ensuring its sustainability and preservation for future generations.

Regional streamflow

Nearby streamflow levels

Cross-check Middle River Near Grottoes's discharge against nearby gauges to spot whether the change here is local or regional.

Regional snowpack

Nearby snowpack data

Snowpack at SNOTEL stations near Middle River Near Grottoes. Spring snowmelt is the dominant driver of streamflow in mountain basins -- a deep snowpack upstream means more runoff later in the season.

Nearby recreation

Plan a trip

Reservoirs, boat launches, river runs, and fishing spots within driving distance of Middle River Near Grottoes.

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 Middle River Near Grottoes in the Snoflo app

Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Middle River Near Grottoes crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.

FAQ

About Middle River Near Grottoes

Where does the streamflow data for Middle River Near Grottoes come from?

Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 01625000. 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 Middle River Near Grottoes 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.