Barometric Pressure Forecast for Sullivan, Missouri
Barometric pressure forecast for Sullivan, Missouri — a small Ozark-edge town on I-44 southwest of St. Louis, in the corridor where Gulf moisture and continental cold air regularly collide. See current barometric pressure and what it means for weather-sensitive people.
Download Pressure Pal to track barometric pressure and get migraine alerts for Sullivan and your area.
Pressure and weather in Sullivan
Sullivan sits on the northern rim of the Ozark Plateau, straddling the Franklin and Crawford county line about seventy miles from St. Louis, in rolling wooded hill country cut by the Meramec and Bourbeuse rivers. Its weather is classic mid-Missouri: humid continental, four genuinely distinct seasons, and a location squarely in the path of the storm track that runs from the southern plains toward the Ohio Valley. Barometric pressure here is far more volatile than the national average. Through spring and again in late autumn, low pressure systems organising over Oklahoma and Kansas track northeast across the state, and Sullivan often ends up on the warm, moist side of them, where the barometer falls steadily for a day or more before a cold front sweeps through and sends it climbing. Severe weather season concentrates these swings: the same setups that put Missouri in the outlook for thunderstorms are the ones that produce the sharpest pressure falls. Summer flips the pattern, with a Bermuda-fed ridge holding current barometric pressure high and steady while heat and humidity build, punctuated by the odd complex of storms drifting down from Iowa overnight. Winter brings arctic highs with strong, sustained pressure rises alternating with lows tracking to the south that can put the area on the cold, wet edge of the system. A barometric pressure forecast for Sullivan is worth checking year-round, but especially from March through May.
What this means for you
Can barometric pressure cause headaches? In this part of Missouri the frequency is the problem — the storm track delivers a new system every few days for much of the year, so weather pressure rarely settles. If you get barometric pressure headaches, the useful signal is not the current reading but how fast it is moving. Use this barometric pressure forecast alongside Pressure Pal as a migraine tracker to watch atmospheric pressure today and get alerts before the next front reaches the Ozarks.