A vigorous cold air outbreak is usually a midwinter, not late fall, phenomenon.
Forecasters say freezing temperatures could shatter cold-weather records in as many as 300 locations, even in parts of the Deep South.
The polar vortex is a band of strong winds, high up in the atmosphere, spinning counter-clockwise around the North Pole.
A bridge has more surface area to exchange energy with the atmosphere and thus will cool down to the air temperature quicker than a roadway.
A gale, common in November, is a sustained wind between 39 and 54 mph usually caused by large differences in the air pressure between a low pr…
It snows in Antarctica — where temperatures are minus 70 degrees — though only a few tenths of an inch.
Frost on objects is just water vapor in the air that has deposited itself as ice on a surface. Frost forms on objects close to the ground, suc…
High-impact events are characteristic of October — a unique month for the large-scale circulation of the Northern Hemisphere.
Atmospheric conditions can make the actual sunrise and sunset vary slightly from the calculated times.
Sensitive instruments on some weather satellites can detect that a region is on fire.
Q: Why should we be concerned about the Arctic climate?
The hydrologic cycle describes the circulation of water from the ocean and other watery surfaces to the atmosphere and to the land.
The size of the ozone hole is showing signs of shrinking.