What is Warning?
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening now, developing as we speak, and is minutes away. This weather hazard poses a threat to life and property.
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Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...
Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...
Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...
Snow that rises to 8 feet or higher.
The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...
A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.