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 periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...
A very cold high pressure that originates over the Arctic Ocean.
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 cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....
A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...
Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...
A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...