Pittsburgh and surrounding areas are bracing for a day of downpours as Tropical Depression Debby's remnants track through the region, delivering rainfall that's expected to last through early afternoon. The National Weather Service in Pittsburgh has issued a Flood Watch for areas primarily to the east of the Pennsylvania/Ohio border, with the heaviest rain forecasted to hit east of Pittsburgh's ridges by around noon today.

Rainfall totals could reach up to 2.5 inches in some higher elevation areas, diminishing sharply as you head west, essentially drying up near the state line. With the surface low-pressure system expected to move northeast and out of the region early this afternoon, a transition to clearer skies is predicted. According to the National Weather Service, "No changes are needed to the ongoing Flood Watch at this time," despite newer high-resolution runs highlighting the potential for increased rainfall in Westmoreland and Indiana counties.

Following the exit of Debby, Pittsburgh can look forward to a drier and cooler weekend. The trough west of the region will foster below-normal temperatures as it moves over the eastern Great Lakes and into the northeast U.S. tonight. This sets the stage for clear and cool conditions through Sunday night, a welcome change for residents who've been navigating the week's volatile weather patterns.

Those planning for the week ahead can expect the umbrella-free trend to continue well into next week. The core of the upper trough will pass from western Canada by Monday, possibly sparking some light rain showers north of I-80, though the chances are low. As per the forecast discussion from the National Weather Service, temperatures are on a gradual incline and will trend back to normal by midweek. This period of stability is underwritten by surface high pressure filling in behind the upper low, signaling a stretch of quiet and increasingly warm days, a subtle shift upward from seasonal norms by Thursday.

Concerning aviation impacts, Pittsburgh's airports are set to experience varied conditions throughout the day, with the likelihood of rain including Pittsburgh International Airport (PIT) and locations to its east. Morning visibility reductions and cloud cover are expected to lift as the day progresses, with Debby tracking northeast and relieving the area of its wet grip. Through the weekend, general VFR (Visual Flight Rules) conditions are projected for the region as high pressure takes charge under the protective wing of a broad upper trough, according to the National Weather Service Pittsburgh branch.