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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

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

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

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

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

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...