Today, Pittsburgh residents can expect to soak up the sun and enjoy warm weather without the need to tote their umbrellas around. The National Weather Service in Pittsburgh has forecasted a day that's both hot and dry, with temperatures slated to climb higher than usual. "Because of this will go higher than the NBM mean, leaning toward the 75th percentile," states the National Weather Service's discussion, pointing out to an anticipated spike in the mercury levels, particularly in areas south of I-80 and west of the ridges where the probability of temperatures crossing the 90-degree mark ranges between 60 and 90 percent.
The Atlantic is quietly brewing changes that are predicted to slowly increase rain chances starting Monday and moving into Monday night. The ambivalence of Pittsburgh's weather continues as it swings from clear, sunlit skies today to a more uncertain forecast. A weakening trough is expected to move eastward, reaching western Ohio Monday morning and while precipitation will accompany it, its strength tends to decrease as it progresses eastward, leading to lesser rain probabilities.
Looking ahead into midweek, residents should anticipate a pattern of instability that's likely to introduce scattered showers and potential thunderstorms. The city finds itself under the influence of the long-term presence of a weakening trough unsettled by secondary waves moving through Ohio early Tuesday and a surface cold front that trails it. The evolving conditions hint at two separate periods of showers and thunderstorms on Tuesday, with a stronger activity projected ahead of the surface boundary later in the day.
The National Weather Service's forecast discussion also alerts aviators to enjoy the current visual flight rules (VFR) conditions which will persist through tonight, thanks to a ridge of high pressure. However, by early Monday morning, ZZV could see MVFR cigs with a few showers after 10Z as the trough approaches. Travelers and pilots should accordingly plan for periodic restrictions with the impending scattered showers and thunderstorms set to carve out the weekly weather narrative from Monday through Friday.
