Fall Transition Takes Hold on Pittsburgh's Tailwaters

What's next

Expect the cooling trend to continue through the next several days, nudging water temperatures down gradually rather than sharply. That kind of steady fall cooldown tends to extend feeding windows beyond the tight dawn-and-dusk bite typical of late summer, as fish don't need to retreat to deep, cooler refuges during the day.

With the moon in a waning gibbous phase, low-light periods around sunrise and sunset remain the highest-percentage windows to plan around this weekend, since a still-bright night sky tends to keep some feeding activity going before first light. Anglers working the tailwater sections should watch for the first real cold snap of the season, that's usually the trigger that kicks the fall pattern into full gear on Allegheny-system water.

Context

Late September into early October is the standard early-fall transition window for freshwater tailwaters in this part of Pennsylvania. Water is coming off its summer thermal peak but hasn't yet dropped into the colder, more stable flows that define late fall. That places the Allegheny and Pittsburgh tailwater stretches on a normal seasonal schedule for this time of year, neither early nor late against the typical pattern.