![]() On weather maps, these readings are represented as a blue “H” for high pressure or a red “L” for low pressure. So, very moist air in the atmosphere can lead to low atmospheric pressure and very dry air can lead to high atmospheric pressure.Ītmospheric pressure is measured with an instrument on the ground called a barometer, and these measurements are collected at many locations across the U.S. A warm front can initially bring some rain, followed by clear skies and warm temperatures. Get the iOS Weather app Get the Android Weather app from Google. Warm fronts usually move from southwest to northeast. is the official website for 10TV, Channel 6, your trusted source for breaking news, weather and sports in. This is because water molecules are lighter than molecules of nitrogen or oxygen-the most abundant gases in our atmosphere. Northeast Indiana and northwest Ohios most comprehensive news source. Weather forecast and conditions for Columbus, Ohio and surrounding areas. Very moist air that has lots of water vapor is actually lighter and less dense than dry air. ![]() Water vapor in the atmosphere can also change the atmospheric pressure. In cold air the gas molecules slow down, causing low atmospheric pressure. is the official website for WKYC-TV, your trusted source for breaking news, weather and sports in Cleveland, OH. ![]() When the air is warm, gas molecules move around quickly in the air pushing out on the area around them. Interactive Radar for Cleveland, Ohio and surrounding areas. Warm air can also cause the atmospheric pressure to rise. When you're at a low elevation, you experience high atmospheric pressure because more of the atmosphere is pushing down on you.
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