Pittsburgh is bracing for a meteorological roller coaster as a strong low-pressure system ushers in a melange of ice, snow, and downpours, potentially triggering floods this weekend. According to the National Weather Service in Pittsburgh, areas around Pittsburgh could see a transition from freezing rain to heavy rainfall leading into Sunday, with a flood watch firmly in place due to concerning rainfall amounts forecasted; meanwhile, those trekking through the area should anticipate wintry mix and snow, especially during the morning hours, though high temperatures later in the day suggest an official high could occur post-sunset, owing to persistent warm advection.
The continuation of today's precipitation brings a fresh Winter Weather Advisory impacting Preston and Tucker counties, where accumulations could surpass three inches. There is little doubt that fierce winds up to 60 mph will buffet the ridges from Sunday through Monday, necessitating a High Wind Watch—particularly for elevated areas like the Laurel Mountains as the cold front arrives. However, significant inconsistencies across models have left some uncertainty regarding the exact timing of its passage, which could be as early as 8 am or as late as 3 pm.
Looking ahead to the remainder of the week, the chilly embrace of below-average temperatures will linger through Friday,. A potential disturbance in the middle of the week will increase the chances of snowfall.
Travel is expected to be affected, with aviation forecasts from the National Weather Service indicating rapid drops from VFR to IFR conditions are likely over just a few hours, and the probability of freezing rain is as high as 60% for particular areas around Pittsburgh. Travelers should stay vigilant and monitor updates closely as transitions from snowy conditions to rainfall and the resurgence of moderate rain overnight will persist into Sunday, with a cold front later converting precipitation back into snow as dry air begins to push through, tapering snow showers and dispersing cloud coverage.
Pittsburgh's current winter situation comes with many advisories, including a Winter Weather Advisory in various counties and a Flood Watch through Sunday evening for a broader area, as listed on the National Weather Service's website.
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