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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The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...
Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...
A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.
Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...
A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.
Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...
A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...
An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...