air mass
noun
: a body of air extending hundreds or thousands of miles horizontally and sometimes as high as the stratosphere and maintaining as it travels nearly uniform conditions of temperature and humidity at any given level
Examples of air mass in a Sentence
Recent Examples on the Web
Record-setting cold to start the week This brutal setup in Chicago is being driven by the same Arctic air mass that’s about to crash across the eastern two-thirds of the country.
—
Briana Waxman, CNN Money, 10 Nov. 2025
Temperatures are expected to gradually moderate later in the week, but the current chill underscores the need for continued attention to weather alerts and safety practices as the unusually cold air mass exits the state.
—Anna Skinner, MSNBC Newsweek, 10 Nov. 2025
However, an air mass can sometimes block a storm, driving it north or northeast toward the Baja California peninsula and the west coast of Mexico.
—William B. Davis, New York Times, 30 Sep. 2025
The region was forecast to see hot conditions, including low relative humidities, an unstable air mass, and temperatures reaching triple digits, according to the Central Oregon Fire Information.
—Thao Nguyen, USA Today, 24 Aug. 2025
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Briana Waxman, CNN Money, 10 Nov. 2025
Temperatures are expected to gradually moderate later in the week, but the current chill underscores the need for continued attention to weather alerts and safety practices as the unusually cold air mass exits the state.
—Anna Skinner, MSNBC Newsweek, 10 Nov. 2025
However, an air mass can sometimes block a storm, driving it north or northeast toward the Baja California peninsula and the west coast of Mexico.
—William B. Davis, New York Times, 30 Sep. 2025
The region was forecast to see hot conditions, including low relative humidities, an unstable air mass, and temperatures reaching triple digits, according to the Central Oregon Fire Information.
—Thao Nguyen, USA Today, 24 Aug. 2025
See All Example Sentences for air mass
Cite this Entry
“Air mass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/air%20mass. Accessed 14 Nov. 2025.
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