What flies are hatching on the North Fork of the South Branch Potomac right now?

Current and seasonal hatches on the North Fork of the South Branch Potomac include Hendrickson, Sulphur, Green Drake. Use the AI Hatch Advisor on this page for a live, temperature-aware recommendation.

What's the current flow on the North Fork of the South Branch Potomac?

The North Fork of the South Branch Potomac is running at 30.1 CFS at the At Cabins gauge. Readings update every 15 minutes from the USGS Water Services API.

Is the North Fork of the South Branch Potomac fishable today?

North Fork of the South Branch Potomac is rated marginal right now. Flow is 30.1 CFS at the At Cabins gauge. Go in prepared — heavier tippet, cautious wading, or target edges and seams.

North Fork of the South Branch Potomac Fly Fishing Conditions

Live Conditions

North Fork of the South Branch Potomac — At Cabins

Marginal

30.1CFS

Discharge

4.02ft

Gauge Height

—

Water Temp

Updated 1 hr agoView on USGS ↗

7-Day Flow

↑ Rising

RisingFallingStable

24-Hr Pressure

28.09 inHg · → High/stable

Falling (good)RisingHigh/stable

Local Weather

81°FClear sky

Wind 2 mph28.09 inHg Low & stable

Tough conditions — fish deep

Today

☁️

Overcast

83° / 65°

Tomorrow

☁️

Overcast

86° / 60°

Wed

🌧️

Rain showers

85° / 69°

0.93"

Thu

🌧️

Rain showers

89° / 66°

0.09"

Cold front incoming — go deep with nymphs, surface activity likely slow.

Weather by Open-Meteo · No API key · Updated every 30 min

What should I fish today?

⚡ AI

AI-powered recommendation using today's live flow, temperature, and hatch data.

6

Time of Day

Using: 30.1 CFS · Terrestrial peak — hoppers and beetles crushing. Caddis evenings. Cool limestone holds wild trout when surrounding freestones get warm.

What should I pack?

Rod, flies, tippet, and safety gear specific to today's North Fork of the South Branch Potomac conditions.

🪰 Hatch Calendar

North Fork of the South Branch Potomac · August · Late Summer

Full calendar →

Showing typical dates — water temperature data unavailable for live hatch predictions.

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JanDec

Terrestrial peak — hoppers and beetles crushing. Caddis evenings. Cool limestone holds wild trout when surrounding freestones get warm.

CaddisTerrestrials

River Map

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USGS Gauge (click for site ID)Fishing Access / SectionScroll to zoom disabled — use map controls

About North Fork of the South Branch Potomac

The North Fork of the South Branch Potomac flows through Smoke Hole Canyon in Grant County — one of the most dramatic river canyons in the central Appalachians. Towering limestone cliffs, crystal-clear water, and wild trout make this a bucket-list destination. Remote and lightly pressured, with excellent dry fly fishing during spring hatches.

HendricksonSulphurGreen DrakeLight CahillYellow SallyCaddisBlue-Winged OliveMidge

Regulations

Standard WV trout regulations. Some sections run through private land — check access. Remote canyon requires careful trip planning. WV fishing license + trout stamp required.

Learn More

Guides to help you fish North Fork of the South Branch Potomac with more confidence.