The latest weather forecast for the Pittsburgh area seems to hold dry, stable conditions as its central theme for the next several days. According to the National Weather Service in Pittsburgh, the presence of a surface high-pressure system north of the region will sustain this stability, resulting in generally light northeast surface winds and maintaining the dry spell through to the weekend.
Today, expect a mild breather with temperatures dipping slightly, comparable to Tuesday’s, to settle closer to seasonal norms. High confidence exists in predictions that the Eastern US will witness ridging dominate the short-term forecast, predicting slightly cooler evenings due to efficient radiational cooling, a natural nighttime process that cools the earth when the sky is clear, and winds, light.
As we look towards the weekend, high confidence in warm and dry conditions prevails through the weekend, as per the National Weather Service’s report. It is indicated that the firm grasp of the Eastern Continental U.S. ridge will bring about a return to above-normal temperatures, while keeping our umbrellas stowed away and picnic plans secure.
The long-term outlook, however, while still imbuing confidence in continued aridity, reveals a hint of uncertainty at the threshold of the new week. An upper-level trough could be the harbinger of change, but confidence wanes on when and with what strength it will impact the area. Should the trough prove to be robust or slow-moving, the possibility of catching sight of some measurable rain early next week does exist.
In terms of aviation, pilots can expect high pressure centered over eastern Canada will maintain VFR conditions and NE wind through the TAF period, minimizing the chances of early morning fog at area airports. The forecast looks clear for those hitting the skies, with only a slight possibility of river valley fog come the weekend, but otherwise, uninterrupted visibility is projected under the maintaining high pressure.
