Barometric Pressure Forecast for Baldwin, New York
Barometric pressure forecast for Baldwin, New York — on the South Shore of Long Island above the back bays. Track current barometric pressure and what it means for weather-sensitive people.
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Pressure and weather in Baldwin
Baldwin lies on the South Shore of Nassau County, on the flat outwash plain that slopes down to the marshes and back bays behind the barrier beaches. Being a couple of miles from the open Atlantic shapes everything. In winter the ocean is the fuel source for coastal storms: lows that redevelop off the mid-Atlantic coast and run north-east past Long Island can deepen explosively, and those are the events that produce both the year's lowest pressure readings and its fastest falls, occasionally more than twenty-four hectopascals in a day. Track matters enormously on this stretch of coast — a storm passing just east gives snow and a hard northerly gale, one passing just west gives rain and a mild southerly surge, and the barometer trace looks similar either way. Tropical systems curving up the seaboard in late summer are rarer but follow the same script with an even deeper centre. The rest of the year the ocean works as a brake rather than an engine: a sea breeze develops most clear afternoons from spring into autumn, holding the South Shore cooler than inland Nassau, and it arrives with only the smallest nudge to the pressure.
What this means for you
Coastal Long Island produces some of the steepest barometric pressure falls anywhere in the north-east, and rate of change is what most weather-sensitive people respond to. A barometric pressure forecast with hourly detail is worth having through the winter here, when a rapidly deepening low offshore can do in a few hours what an inland system takes two days to do.