A southwesterly has held for 19 hours, running warmer than the water (12°C air against 8°C water). Expect fish at the north-eastern end — the bank it is blowing into — where the drift piles food, colour and warmth together. This reads the upper water, though — a bottom bait at range feels it far less than a floater or a fish in the margins. Treat it as a tiebreaker between good swims rather than an override — features and angling pressure usually count for more.
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
If the main plan is not working, switch to a smaller, more imitative pattern fished slower and deeper. A change of drift angle can also make a difference.
Buzzer may strengthen through the middle of the day as conditions warm.
Bank-only venue. Fish from accessible margins, points, weed edges, and inflows.
Hatch predictions
Top nymph shown — see all 4 guilds as a supporter.
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Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 3 as a supporter.
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Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
A reasonable day here, though temperature isn't quite in the sweet spot.

Llynnau Mymbyr looking toward Moel Siabod and Snowdon, Eryri Terrain map
- Buzzer is in its seasonal window, boosting the chance of targeted feeding.
- Trout 3 March → 30 September
Llynnau Mymbyr

A southwesterly has held for 19 hours, running warmer than the water (12°C air against 8°C water). Expect fish at the north-eastern end — the bank it is blowing into — where the drift piles food, colour and warmth together. This reads the upper water, though — a bottom bait at range feels it far less than a floater or a fish in the margins. Treat it as a tiebreaker between good swims rather than an override — features and angling pressure usually count for more.
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
If the main plan is not working, switch to a smaller, more imitative pattern fished slower and deeper. A change of drift angle can also make a difference.
Buzzer may strengthen through the middle of the day as conditions warm.
Bank-only venue. Fish from accessible margins, points, weed edges, and inflows.
Hatch predictions
Top nymph shown — see all 4 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 3 as a supporter.
Start free trial14-day free trial. Cancel anytime.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
A reasonable day here, though temperature isn't quite in the sweet spot.

Llynnau Mymbyr looking toward Moel Siabod and Snowdon, Eryri Terrain map
- Buzzer is in its seasonal window, boosting the chance of targeted feeding.
- Trout 3 March → 30 September