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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

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

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...