The Pittsburgh area is set to experience various weather patterns over the next few days, as reported by the National Weather Service Pittsburgh PA. The forecast highlights an increase in shower chances starting late morning, as a warm front passes through, and additional showers and isolated thunderstorms later in the evening due to a shortwave.
The National Weather Service indicates that residents can expect to stay dry through late morning, with rain probabilities increasing between 8 am and 11 am. The showers are expected to remain light, with rainfall totals not exceeding a quarter inch. Later in the day, a low-level jet is forecast to quickly develop showers and isolated thunderstorms across Ohio and western Pennsylvania, with some potential for gusty winds and lightning.
Transitioning into tonight and through Thursday night, the focus is on isolated showers and storms that may continue as a shortwave moves through the area. Temperature-wise, a protracted period of cooler weather is anticipated, and lake-enhanced showers will add to the mix. Cold advection associated with a broad low over the Great Lakes will likely maintain breezy conditions on Wednesday, indicating a blustery and chilly midweek.
Looking ahead to the end of the week, conditions are set to improve with the National Weather Service predicting a pattern shift to promptly bring about drier conditions Friday and Saturday. However, commuters should prepare for frost and freeze potential Thursday and Friday night, with temperatures expected to drop into the mid to low 30s. The NWS notes that "Probability of 35 degrees or lower is considered high in portions of the region, above 70%. Probability of 32 degrees or lower ranges from 40-60% in portions of the region."
As for aviation interests, VFR conditions should dominate for most terminals through the first half of this period, except for possible brief MVFR windows due to a 700mb shortwave this morning and lake-enhanced showers favoring areas north of Pittsburgh in forthcoming days. Come this weekend, high pressure will establish clearer skies and stable VFR conditions through Saturday, as outlined by the forecast discussion.
As always, it's recommended that Pittsburgh residents stay updated on the latest weather developments through the National Weather Service and local news outlets to ensure they're prepared for whatever the skies may bring.
