What is Air Mass?

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

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

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

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

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

CONQ is a meteorological abbreviation for significant convection observed in a specific area, often indicating unstable atmospheric...

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

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...