As the sun climbs higher in the sky over the Ohio Valley this Tuesday morning, residents across the regions of Columbus, Cincinnati, and Wilmington can expect to hold on to their sweaters a bit longer. The National Weather Service advises that a "seasonably cool airmass will remain in place across the region through much of the week," ensuring that the summer heat continues to take a hiatus.
While the forecast anticipates the possibility of "a few showers across the far north," the good news is that, largely, dry weather is expected to prevail. For those planning to venture outside, prepare to occasionally brace against northwesterly gusts, especially from midday into the afternoon. And while we won't be seeing scorching temperatures typical for this time of year, efficient mixing will allow cool temperatures to persist under the longwave trough.
Transitioning into the evening, the skies are set to quickly clear "Tuesday evening as we lose solar insolation," with temperatures dipping into the middle to upper forties by morning. As Wednesday materializes, a surface high west is expected to build across the middle Ohio Valley. With light winds and mostly sunny skies dominating the day, highs are forecasted to reach the middle to upper 70s.
Looking ahead to the end of the week and into the weekend, a noticeable shift occurs. By Wednesday night and Thursday, a southwesterly flow west of the high will likely induce a slight warm-up. However, "moisture increases by Thursday afternoon and evening when a trough axis moves through the Ohio Valley," according to NWS, potentially giving rise to some showers, especially along and north of I-70.
A cold front is predicted to follow the trough axis on Friday, accompanying the return of drier air along with yet another cool down. The ensuing days are expected to continue this pattern, with northerly/northeasterly winds maintaining temperatures below the typical late August averages. Relief may slowly come Sunday and Monday as easterly flows nudge temperatures upwards, easing residents back into a semblance of seasonal norms.
For those planning to take to the skies, the aviation outlook is promising, with "VFR conditions likely with the possible exception of valley fog at LUK late tonight due to light winds and the local moisture source." Travelers can rest easy with "No significant weather expected," ensuring smooth sailing for aerial commutes.
