Icicles typically form on days when the outdoor air temperature is below freezing but sunshine warms and melts snow or ice.
A sudden warming of the lower stratosphere can encourage a winter-like cold air outbreak.
Wintry weather thwarted Thanksgiving weekend travel across the United States Saturday as a powerful and dangerous storm moved eastward, dumpin…
The 2019 Atlantic hurricane season, which ends on Nov. 30, will go down as the fourth-most active hurricane season on record.
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.