Barometric Pressure in Black Diamond, United States

• Forecast Chart
• Hourly Trends

The pressure in Black Diamond, Washington, United States is predicted to drop over the next few hours, with an average pressure of 993.8 hPa today, which is lower than normal.

Weather prediction: Expect wet, unsettled weather and a strong breeze

The daily total fluctuation in pressure in Black Diamond is 5.7 hPa, with a low of 991.3 hPa and a high of 997 hPa.

Forecast

The barometric pressure in Black Diamond is affected by weather systems moving into the region. It changes as low-pressure systems bring rain and high-pressure systems bring clear skies. These changes can be dramatic, causing quick shifts in weather.

Black Diamond is surrounded by the Cascade Range to the east and Puget Sound to the west. The city's location creates an orographic effect, where air is forced to rise and cool. This cools the air, causing precipitation to form. The nearby mountains also block or redirect air masses, influencing the local pressure.

The surrounding landscape plays a significant role in shaping the local weather patterns. The nearby mountains force air to rise, creating an area of low pressure near the surface. This draws in air from the Puget Sound, which is influenced by the Pacific Ocean. As a result, Black Diamond experiences a mix of marine and continental weather patterns.