polar front
noun
: the boundary between the cold air of a polar region and the warmer air of lower latitudes
Examples of polar front in a Sentence
Recent Examples on the Web
While weather forecasting had seen vast improvements in the two decades before D-Day − most notably with the development of the polar front theory of how storms develop − there were still limitations that made forecasting for D-Day a real challenge, Potter explained.
—
Doyle Rice, USA Today, 5 June 2026
After rain and strong winds from a storm overnight Wednesday, Kansas City will see a quick return to winter as a polar front brings much colder weather and wind chills in the single digits to low teens, according to the National Weather Service.
—Kansas City Star, 17 Dec. 2025
The polar front arrives Monday night bringing in falling temps, strong N winds, & snow.
—Josh Hammer, Newsweek, 14 Feb. 2025
This sudden mid-air jolt is caused by wind shear created by the jet stream, specifically the polar front jet stream in northern latitudes.
—Darren Orf, Popular Mechanics, 5 Sep. 2023
Then a big change will be felt in the temperature department across the state as the combination of Nicole’s circulation and a polar front bring down much cooler air into the state starting on Friday and lasting into the weekend.
—Leigh Morgan, al, 9 Nov. 2022
And those anomalous years offer a preview of how the Southern Ocean is expected to warm in the coming decades, steadily shifting the polar front farther south.
—Eli Kintisch, Science | AAAS, 19 Mar. 2020
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Doyle Rice, USA Today, 5 June 2026
After rain and strong winds from a storm overnight Wednesday, Kansas City will see a quick return to winter as a polar front brings much colder weather and wind chills in the single digits to low teens, according to the National Weather Service.
—Kansas City Star, 17 Dec. 2025
The polar front arrives Monday night bringing in falling temps, strong N winds, & snow.
—Josh Hammer, Newsweek, 14 Feb. 2025
This sudden mid-air jolt is caused by wind shear created by the jet stream, specifically the polar front jet stream in northern latitudes.
—Darren Orf, Popular Mechanics, 5 Sep. 2023
Then a big change will be felt in the temperature department across the state as the combination of Nicole’s circulation and a polar front bring down much cooler air into the state starting on Friday and lasting into the weekend.
—Leigh Morgan, al, 9 Nov. 2022
And those anomalous years offer a preview of how the Southern Ocean is expected to warm in the coming decades, steadily shifting the polar front farther south.
—Eli Kintisch, Science | AAAS, 19 Mar. 2020
Cite this Entry
“Polar front.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polar%20front. Accessed 25 Jun. 2026.
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