What is Arctic Air?

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which...

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...