Beaverkill holding at 55 cfs as Catskills hatch season hits stride

What's Biting

What's Next

The next two to three days will largely determine whether these flows hold or whether additional rainfall pushes the gauges higher. The Beaverkill at 55.2 cfs is on the lower end of a typical early-May reading, which translates to clean water and genuine sight-fishing potential — an excellent outcome if it holds through the weekend. Check USGS stream gauges the morning of before wading; rain moves these numbers fast in a tight Catskills watershed.

On the East Branch Delaware, 274 cfs is a manageable spring flow for anglers comfortable with moderate current. The best trout lies at this level will be in eddies behind mid-channel boulders, along current seams adjacent to slower water, and in the deeper runs where fish can hold without burning energy. Longer leaders and finer tippet (5X or lighter) will pay off on the calmer edges where drag is most noticeable.

Timing matters sharply on Catskills streams in early May. The Hendrickson hatch — the first significant mayfly emergence of the season on these waters — typically fires in the warmest part of the afternoon, usually between 1 and 4 PM. If mornings are cool, start subsurface with nymph patterns in the pre-hatch window. As air temperatures climb, transition to dry flies. MidCurrent's hatch-coverage features note that patterns addressing every feeding lane from surface film to open water are the complete toolkit right now — caddis emerger, CDC spent spinner, and mid-column nymph presentations all earn a place in a Catskills spring rotation.

For Adirondacks drainages to the north, plan on conditions running one to two weeks behind the Catskills. Brook trout in high-elevation feeders are active, but hatches are still building. Attractor dries will outperform specific hatch-matching patterns until emergence sequences consolidate. The Waning Gibbous moon reduces ambient light through pre-dawn hours, which may favor lower-light feeding windows; afternoon remains the highest-percentage slot for surface activity.

Context

Early May is historically the heart of the Catskills fly-fishing calendar, and the current flows sit within the range of a normal spring progression — though the Beaverkill at 55.2 cfs trends toward the lower end of what's typical for this date. On a wet spring that gauge can run 150–300 cfs or higher through mid-May; the current reading suggests snowpack has largely dissipated and the stream may be transitioning toward its summer character slightly ahead of schedule.

The classic Catskills hatch sequence for this window is well-established: Hendricksons dominate late April through mid-May, with caddis, Blue-Winged Olives, and sulphurs extending the season into June. Field & Stream's aquatic-insect guide and Hatch Magazine's caddis-emergence coverage both align with this timing, even if neither source reported directly from New York streams this cycle. MidCurrent's coverage of the Battenkill Fly Fishing & Arts Festival — which ran April 30–May 2 in Arlington, Vermont, just across the New York border — signals that the broader Northeast fly-fishing community is actively engaged at this point in the season. The Battenkill, which flows into New York through Washington County, shares the same hatch dynamics as the Catskills streams further south.

For the Adirondacks, elevation adds a consistent lag: brook trout streams in the High Peaks drainage typically mirror Catskills conditions from two to three weeks prior. No comparative reports from NY-specific shops, charters, or state agencies surfaced in this cycle's feeds, so beyond the gauge readings and regional seasonal norms, the precise on-the-ground picture remains incomplete. Anglers heading out should check with local shops before committing to a run.