What is Arctic Air?
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
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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.
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....
A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...
A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.
A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...
The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...
Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.
Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which...