Barometric Pressure Forecast for Saint Michael, Minnesota
Barometric pressure forecast for Saint Michael, Minnesota — on the Crow River in Wright County, northwest of the Twin Cities. See current barometric pressure and what it means for weather-sensitive people.
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Pressure and weather in Saint Michael
Saint Michael sits at about 950 feet on gently rolling glacial till beside the Crow River, on the open ground northwest of the metropolitan area where the last suburbs give way to farmland. This part of Minnesota experiences one of the largest annual temperature ranges of any populated place in North America, and the barometer follows suit. Arctic outbreaks are the defining event. A continental polar air mass sliding down from northwestern Canada brings some of the highest surface pressures recorded on the continent, readings above 1050 hPa, together with rises of twenty to thirty hPa in a day and temperatures far below zero Fahrenheit. Alberta clippers cross between those outbreaks, fast and moisture-starved, dropping ten to fourteen hPa with a brief burst of snow and a savage wind shift. The bigger snowfalls come from Colorado lows tracking northeast, with falls of twenty-five to thirty-two hPa. Spring and summer bring the opposite regime, with warm Gulf moisture pushing north into a sharp boundary and producing the derechos and supercells that make late June the most volatile stretch of the year. The open terrain means wind is a constant companion to every one of these transitions.
What this means for you
Winter here delivers pressure rises as large as the falls seen elsewhere, and rises affect some people as strongly as falls. Reviewing both directions on a barometric pressure forecast is a habit worth keeping in this climate.