Pittsburgh residents can expect a pleasing Memorial Day, with clear skies and dry conditions to accompany their holiday festivities, as reported by the National Weather Service Pittsburgh PA, which cited high pressure over the Great Lakes as the catalyst for the balmy weather; the serene state will persist throughout the day with temperatures reaching the lower 70s, which is closer to the seasonal norm for this time of year.
Those enjoying the outdoors today should take advantage of the mild weather. At the same time, it lasts, as changes are on the horizon. Starting Tuesday, a low-pressure system will make its way into the region, bringing with it rain and the potential for thunder come Wednesday. However, the good news is that severe weather and heavy rainfall are unlikely, making them more of an inconvenience than a threat.
As the week progresses, uncertainty regarding temperatures heightens, especially over the weekend, but overall readings should align with seasonal normals; daily shower chances will persist from the latter half of the week extending into the weekend, according to the National Weather Service, this due to an upper-level trough expected to move through the region.
Showers might pepper Pittsburgh skies, and while the mean temperatures will generally stick close to what's typical for this period the season, there is a notable spread of potential outcomes in the ensemble guidance that injects a level of unpredictability into the forecast, NBM 10th percentile MaxT are in the 60s, while 90th percentile are in the 80s, and although a build-up of warmth in the Plains hints at a possible uptick in temperatures for the Ohio Valley the following week, it seems the city will remain under the cooling influence of the upper trough for now, with diurnal clouds and showers likely to cap the mercury from climbing too high.
In terms of aviation, the weather service assures VFR conditions for Memorial Day. The only hiccup was a ribbon of river valley fog that crept in earlier but dissipated with the rising sun. This left behind a forecast brimming with hope for unrestricted blue skies and light winds out of the northeast. Pilots should enjoy smooth sailing until Tuesday, when the next system from the Ohio Valley rolls in, potentially disrupting this brief encounter with ideal flight conditions.
No advisories or warnings are currently in place for Pennsylvania (PA), Ohio (OH), and West Virginia (WV), as the region takes in the calm before the expected wet interlude. For a more detailed forecast, visit the National Weather Service website.
