What is Frost?
The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential damage to plants and crops.
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A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...
A cloud of irregular appearance, composed of irregular cloud fragments.
A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...
Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...
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 strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...
Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...