Barometric Pressure in Birch Island, Canada 
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The pressure in Birch Island, Ontario, Canada is predicted to slowly drop over the next few hours, with an average pressure of 987 hPa today, which is lower than normal.
Weather prediction: Expect more wet and unsettled conditions
The daily total fluctuation in pressure in Birch Island is 15.9 hPa, with a low of 982 hPa and a high of 997.9 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Birch Island hour by hour and stay informed about how it will change over the next 6 hours.
The barometric pressure in Birch Island, Ontario, Canada changes frequently. It rises and falls with the movement of high and low-pressure systems. This change affects the weather patterns in the area.
Birch Island is surrounded by the Great Lakes and the Canadian Shield. The lakes have a moderating effect on the climate, keeping temperatures relatively steady. The Canadian Shield is a region of Precambrian rock that affects the air flow. The unique combination of water and rock influences the atmospheric pressure.
The landscape around Birch Island creates a microclimate. The air flows over the lakes and then encounters the Shield, causing it to rise and cool. This cooling causes the air pressure to drop. The result is a unique weather pattern that is distinct from surrounding areas.