The National Weather Service in Pittsburgh has issued a forecast for an inbound cold front, with increasing rain chances slated to continue into early Tuesday. The weather conditions today are set to be impacted by a low-pressure system moving from western Illinois and eastern Iowa, which is expected to drench Ohio and Western Pennsylvania with rain after noon, according to the National Weather Service.
Pittsburgh residents can expect early morning fog, especially in river valleys, predicted to dissipate as the day progresses. A warm front is to bring milder temperatures—near or slighter higher than average for this season. The possibility of notable rainfall exceeds 90%, though amounts are expected to stay below a quarter inch through midnight. Surface high pressure and upper-level zonal flow will dry conditions on Wednesday, yet the prediction holds an increasing chance of rain and snow as we inch closer to Thanksgiving Day.
As the system passes, rain chances stay elevated through early Tuesday. The forecast pinpoints the arrival of a cold front between 1 a.m. and 4 a.m. Tuesday morning. Following the front, the area is expected to experience wind gusts between 20 and 25 mph and a clear-up post-7 a.m. in Eastern Ohio and around 9 a.m. in Western Pennsylvania, according to the NWS report.
Aviation may face challenges with conditions likely degrading to IFR after 00z Tuesday, as rain rates should pick up and ensembles favor VIS restrictions to MVFR/IFR with showers along the boundary, highest probabilities for FKL/DUJ. Given the complexities of this weather situation, travelers are advised to stay updated with the latest forecasts and potentially prepare for disruptions. Conditions will substantially change by Friday with the advent of an Arctic airmass, which is expected to prompt below-average temperatures and possibly periodic spells of snow extending into early next week.
No advisories, watches, or warnings are currently in place for Pennsylvania, Ohio, or West Virginia, hinting at a system that will, though inconvenient, not reach extreme severity.
