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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...

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

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

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

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

Indicates the amount of water the soil can absorb/retain through percolation. This capacity is around 7% in sandy soil and...

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...