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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A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
A very cold high pressure that originates over the Arctic Ocean.
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...
The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.
A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...
The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...