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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 weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

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

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

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...

The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...