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The pressure in Grand Rapids, United States is predicted to rapidly drop over the next few hours, with an average pressure of 1029.1 hPa today, which is higher than normal.
Weather prediction: Expect storm force weather
The daily total fluctuation in pressure in Grand Rapids is 20.1 hPa, with a low of 1016.1 hPa and a high of 1036.2 hPa. The daily average here is higher than in most cities around the world.
The barometric pressure in Grand Rapids, Minnesota is usually around 30 inches of mercury. This is average compared to other cities in the United States. The pressure is highest in February, around 30.2 inches. It's lowest in June, around 29.8 inches.
Grand Rapids is located in a valley. The nearby Mississippi River and surrounding hills contribute to this valley shape. This landscape affects the atmospheric pressure. The valley traps cold air in the winter.
In the winter, cold air masses from Canada move south. They meet the warmer air over the city. This collision creates low pressure systems. These systems bring snow and cold temperatures to Grand Rapids.