The Pittsburgh area is set to experience seasonally warm temperatures alongside increased rainfall chances as a stagnant upper low persists over Kentucky. According to the National Weather Service Pittsburgh, The forecast, which covers the period through early next week, also indicates that a frontal passage is expected midweek to help clear the skies and dry out the region.
Residents in eastern Ohio and western Pennsylvania, particularly south of Interstate 80, should be prepared for continued episodes of precipitation throughout today. There is a high likelihood of additional rainfall ranging from 0.25" to higher accumulations, the former's chances ranging from 60% to 90%, and the latter dropping slightly between 30% and 60% for western Pennsylvania and northern West Virginia.
Even as nighttime temperatures are predicted to stay about 10 to 15 degrees above average due to elevated dew points, the mix of gulf and Atlantic moisture coupled with the slow eastern progression of the upper low will sustain rain chances and maintain significant cloud cover, especially south of I-70. Monday is expected to follow a similar weather pattern with the possibility of daytime rain, primarily south of I-80, and overnight temperatures surging above the seasonal average by a notable margin, according to the National Weather Service.
For aviators, the main concerns revolve around visibility restrictions and low ceilings, signaling a high probability (>70%) of ceilings below 1kft at most terminals. Though precipitation coverage may dwindle in the afternoon, pockets of convective activity could still lead to visibility restrictions within passing showers. These conditions and occasional limits are anticipated to linger into the early part of next week while the upper-level low pressure drifts across the Upper Ohio Valley.
