Barometric Pressure in Thunder Bay, Ontario, CA

The pressure in Thunder Bay, Canada is predicted to slowly drop over the next few hours, with an average pressure of 1001.8 hPa today, which is lower than normal.

Weather prediction: Expect more wet and unsettled conditions

The daily total fluctuation in pressure in Thunder Bay is 10.4 hPa, with a low of 995.2 hPa and a high of 1005.6 hPa. The daily average here is lower than in most cities around the world.

Forecast

• Low Pressure
• Normal Range
• High Pressure

Thunder Bay's location on Lake Superior creates changes in air pressure, with low pressure systems forming over the lake and moving east. This causes pressure to drop and rise frequently.

The city's high elevation and surrounding hills disrupt air flow, making it difficult for air masses to move smoothly, leading to changes in pressure. The landscape also traps cold air in the city during winter.

In winter, high pressure dominates, bringing cold air from the north. In summer, low pressure brings warm air from the south. Spring and fall see a mix of both, making pressure variable.

Thunder Bay has a continental climate, with large temperature and pressure swings between seasons. This leads to frequent changes in weather and pressure, making it important to check forecasts regularly.

Disclaimer

* The barometric pressure information for Thunder Bay, Ontario, Canada on this page is for educational purposes only. We are not responsible for its accuracy or reliability. This information is not medical advice. Consult a health professional for medical concerns and do not rely on this site for medical decisions.