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The pressure in Sandy, United States is predicted to drop over the next few hours, with an average pressure of 1031.7 hPa today, which is higher than normal.
Weather prediction: Expect wet, unsettled weather and a strong breeze
The daily total fluctuation in pressure in Sandy is 3.8 hPa, with a low of 1029.6 hPa and a high of 1033.4 hPa. The daily average here is higher than in most cities around the world.
The barometric pressure in Sandy, Utah is usually around 29.9 inches. It can drop to 29.5 inches during winter months. In summer, it can rise to 30.1 inches.
Sandy is situated in the Salt Lake Valley. The valley is surrounded by the Wasatch Mountains to the east and the Oquirrh Mountains to the west. The mountains block air masses from the west. This affects the atmospheric pressure in the valley.
The mountains also create a rain shadow effect. Moist air from the Pacific Ocean drops most of its water on the western side of the mountains. This leaves dry air to enter the valley. The dry air results in lower humidity and atmospheric pressure.
Cold air from the north and east can also enter the valley. This air is dense and increases atmospheric pressure. The combination of these air masses affects the weather in Sandy.