Barometric Pressure Forecast for Osawatomie, Kansas
Barometric pressure forecast for Osawatomie, Kansas — where Pottawatomie Creek joins the Marais des Cygnes River in Miami County, eastern Kansas. See current barometric pressure and what it means for weather-sensitive people.
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Pressure and weather in Osawatomie
Osawatomie lies at about 850 feet at the confluence of Pottawatomie Creek and the Marais des Cygnes, in the rolling country where the Osage Plains run east toward the Missouri line. It sits far enough east that the true dryline rarely reaches it, but close enough that storms firing along that boundary over Oklahoma in the afternoon arrive here overnight as organised complexes, often with their damaging wind and hail still intact. The town's defining weather story, though, is water. Two river systems meet inside the city limits and both drain large basins upstream, so rain that fell a day earlier and sixty miles west shows up as a crest long after the sky here has cleared, which is why the town has been flooded repeatedly through its history. In spring the Great Plains low is the main barometric engine, deepening over Colorado and tracking northeast, dropping readings twenty to twenty-five hPa in a day while pulling Gulf moisture north ahead of it. Autumn is the settled season, with long stretches under high pressure and the clearest skies of the year. Winter brings Arctic fronts that cross with almost no precipitation at all but with a sharp rise and a thirty-degree temperature drop inside a few hours.
What this means for you
The sharpest changes come from spring plains lows and from dry Arctic fronts, and both move fast enough to be missed. A migraine tracker app sampling continuously catches the frontal passage that an hourly summary blurs into nothing.