Starter $9/mo · 10 watches · every 15 min. Plus $19/mo · 40 watches · every 5 min. We email a confirmation link first; webhooks confirm at checkout.
South Branch Potomac River near Petersburg, WV
Latest discharge: 182 cfs (provisional) at .
Latest gage height: 4.03 ft (provisional) at .
The South Branch Potomac gauge near Petersburg. USGS site 01606500 (SOUTH BRANCH POTOMAC RIVER NEAR PETERSBURG, WV). Open the USGS gauge.
We email once when a fresh USGS reading crosses your line. If it's already past the line, we wait for it to come back and cross. After an alert we stay quiet until the reading moves back past the line by a small margin. Ice, missing, seasonal, or 6-hour-old readings don't count. Provisional readings are labeled in the email.
New to flow numbers? Fly Fishing for Nerds on reading river flows and water temperature for trout.