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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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Glossary

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

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

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

The belt between 50-70 ° N and S latitudes in the Northern and Southern Hemispheres, adjacent to the Polar Region. Although...

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

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

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

A large body of air having similar horizontal temperature and moisture characteristics.