What is Blocking Pattern?
Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather systems from moving through.
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The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....
A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...
The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...
The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...
A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.
A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.
Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.
A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...