Foothill Freestone · Mixed · US, US

North Fork Yuba River

Yuba River 5

The North Fork of the Yuba is classic Sierra freestone — a tumbling, granite-bottomed river of plunge pools and pocket water threading through the canyon, holding wild rainbows that fight well above their weight and browns that grow heavier and warier in the deeper lies.

Today · About as good as it gets
Sculpin Streamer
Forecast · Today
About as good as it gets
On the feed top to bottom — start on the rises with a dry, drop a nymph if they stay down.
90% projected
Today's fly
Sculpin Streamer
Sculpin Streamer
Conditions on the water · Today
Live gauge
Level
Steady
0.49 m
Last reading 42 min ago
Water temp11.6°C
ClarityClear
Weather15°C
WindN 13 km/h
Pressure1016 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Brown Trout
Ideal
12°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Excellent — conditions well-balanced, with water temperature particularly in your favour.
Likely species
Hatch timeline · todayPeak at 9pm

12pm(now) — Western Blue-Winged Olive

Stage: On emergersApproach: Emerger or dryActivity: 63%
Also:Black Midge23%
Peak emergence window6 food groups active

Peak activity at 9pm — Brown Dun (Brown Dun, 5 food groups active)

Sub-surface · on the nymphunder the surface

Hatch predictions

Supporters see the full sub-surface read.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Supporters see what else is on the menu.

Start free trial

14-day free trial. Cancel anytime.

Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

Through the year
0–3 scale · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Brown DunHatch
2
3
3
3
3
3
3
2
Western Green DrakeHatch
2
2
Flav (Small Western Green Drake)Hatch
2
3
2
Mahogany DunHatch
2
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Brown Trout fly box
SD
Sex Dungeon
2-6 · Pattern
Proven pattern for this period
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
  1. Yuba River 5
  2. Terrain map of the venue
    Terrain map
About this water

The North Fork of the Yuba is classic Sierra freestone — a tumbling, granite-bottomed river of plunge pools and pocket water threading through the canyon, holding wild rainbows that fight well above their weight and browns that grow heavier and warier in the deeper lies. This is a river you fish on your feet, hopping from pocket to pocket, reading where the broken water sets a feeding lane and dropping a fly into it before the current spits it out. The early season belongs to snowmelt, which runs it cold and pushy until things settle. Once the flows drop into summer shape, the caddis come off well and the terrestrials start falling, and a buoyant dry with a nymph hung beneath it covers most of what the river asks. Beautiful, demanding, rewarding water — and a wade that asks for respect.

  • River
  • Mixed
The full read · show the working · for Brown Trout · confidence 90%
How the 85 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time65 × 13%8.5
Pressure80 × 7%5.6
Insect activity68 × 12%8.2
Conditions total= 85
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Related guides
Booking & contacts