What is Arctic High?
A very cold high pressure that originates over the Arctic Ocean.
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Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.
The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...
The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...
A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...
A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...
The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.
A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.