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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Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.
A very cold high pressure that originates over the Arctic Ocean.
Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...
The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...
The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....
The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...
An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...
A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.