Barometric Pressure Forecast for Yelm, Washington
Barometric pressure forecast for Yelm, Washington — on the Nisqually prairie between Olympia and Mount Rainier. See current barometric pressure and what it means for weather-sensitive people.
Laden Sie Pressure Pal herunter, um den Luftdruck zu verfolgen und Migräne-Warnungen für Yelm und Ihre Region zu erhalten.
Pressure and weather in Yelm
Yelm sits on one of the gravelly outwash prairies of the southern Puget Sound lowland, between the Nisqually River and the foothills, with Mount Rainier filling the eastern skyline about thirty miles away. It is inside the rain shadow of the Olympic Mountains, so it is noticeably drier than the coast, but it is still firmly in the path of the Pacific storm track from October through March. That season is the whole story for the barometer here: a conveyor of North Pacific lows and atmospheric rivers crosses the region, each one dropping pressure steadily over half a day and then recovering, sometimes half a dozen times in a fortnight. Yelm also catches a local phenomenon, the cold easterly outflow that pours out of the Cascade passes behind an arctic air intrusion and produces the region's rare snow and freezing rain. Summers under the North Pacific high are dry, mild and very quiet on the pressure trace.
What this means for you
The Pacific Northwest wet season delivers repeated similar-shaped pressure falls, which is unusually good for pattern-finding — you get many comparable events in a short window. Track a full October-to-March stretch in the migraine tracker app and the correlation, if it exists for you, should be visible.