Barometric Pressure Forecast for Plainview, New York
Barometric pressure forecast for Plainview, New York — on the Harbor Hill moraine in Nassau County, central Long Island. See current barometric pressure and what it means for weather-sensitive people.
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Pressure and weather in Plainview
Plainview sits at about 160 feet along the spine of the Harbor Hill terminal moraine, the ridge of glacial debris that forms the high ground down the centre of Long Island, with the North Shore bays four miles one way and the South Shore bays six the other. Water on both sides makes this a marine climate in nearly every respect, with the ocean holding autumn mild and spring cool and the annual temperature range noticeably smaller than at the same latitude inland. Yet the moraine's modest elevation is enough to put Plainview on the snow side of a marginal storm while south shore communities take rain. Winter nor'easters dominate the barometric record, with falls of twenty-five to forty hPa in the deepest cases, and because the island projects into the storm track the wind arrives across a long unobstructed fetch. Tropical systems are the second source, since Long Island lies at the latitude where recurving Atlantic hurricanes make their closest approach, and the memory of Sandy's surge across the south shore still shapes how people here prepare. On hot summer afternoons the sea breezes from both shores push inland and converge over the middle of the island, which is precisely where Plainview sits, firing storms that neither coast sees.
What this means for you
Both of the large systems here arrive with wind and water rather than weather alone. A barometric pressure forecast read two to three days out is standard practice on the island for good reason.