The first anticyclonic tornado associated with a mesoanticyclone was spotted on WSR-88D weather radar in Sunnyvale, California May 4, 1998.
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In April 2006, Payne and photojouralist Kevin Josephy captured a rare anticyclonic tornado that ultimately destroyed several hangars at the El Reno Regional Airport.
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This often occurs when upper air is subsiding, such as under anticyclonic conditions, and is also frequently found when radiation fog has formed overnight.
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For example, the Beaufort High an extension of the Siberian High system is a pressure system that drives the anticyclonic motion of the Beaufort Gyre.
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That would be an interesting situation, to be enveloped by the greatest extraterrestrial anticyclonic storm in the solar system, and not even realize it.
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In the summertime, anticyclonic conditions are present but are usually kept in check by the cooling " la bise " wind from the north.
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As air parcels are lifted within the eye of the storm the vorticity is reduced, causing the outflow from a tropical cyclone to have anticyclonic motion.
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Conversely, if the same fluid parcel moves poleward, ( ?y becomes larger ), the relative vorticity must decrease and become more anticyclonic in nature.
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During the summer, the weather is typically anticyclonic due to the presence of the North Pacific anticyclone, with resultant clear skies and large diurnal temperature ranges.
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Such companion tornadoes tend to be observed with especially large and intense tornadoes, although this was the first documented multiple-vortex anticyclonic tornado of this kind.
