St. Elmo s Fire — A corona discharge which lights up the aircraft surface areas where maximum static discharge occurs.
Although referred to as “fire”, St. Elmo’s fire is, in fact, plasma. The electric field around the object in question causes ionization of the air molecules, producing a faint glow easily visible in low-light conditions. Approximately [...]
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Posted in Aviation Weather Terms, Video | Tagged FAA Pilot's Handbook, static
WTHR is a FAA Acronym for: “Weather”
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Posted in Abbreviations and Acronyms, Aviation Weather Terms | Tagged Acronym
WST – Convective Significant Meteorological Information – Aviation Term – Abbreviation / Acronym
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Posted in Abbreviations and Acronyms, Aviation Weather Terms | Tagged Abbreviation, Acronym, Aviation Weather
WW – Severe Weather Watch Bulletin – Aviation Term – Abbreviation / Acronym
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Posted in Abbreviations and Acronyms, Aviation Weather Terms | Tagged Abbreviation, Acronym, Weather
WSO – Weather Service Office – Aviation Term – Abbreviation / Acronym
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Posted in Abbreviations and Acronyms, Aviation Weather Terms | Tagged Abbreviation, Acronym, Aviation Weather
WSP – Weather System Processor – Aviation Term – Abbreviation / Acronym
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Posted in Abbreviations and Acronyms, Aviation Weather Terms | Tagged Abbreviation, Acronym, Weather
WS – SIGMET – Aviation Term – Abbreviation / Acronym
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Posted in Abbreviations and Acronyms, Aviation Weather Terms | Tagged Abbreviation, Acronym, Weather
Visual flight rules (VFR). Flight rules adopted by the FAA governing aircraft flight using visual references. VFR operations specify the amount of ceiling and the visibility the pilot must have in order to operate according to these rules. When the weather conditions are such that the pilot can not operate according to VFR, he or [...]
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Posted in Airport Terms, ATC Terms, Aviation Weather Terms, FAA Terms | Tagged Aviation Weather, FAA Pilot's Handbook, Flying
Troposphere. The layer of the atmosphere extending from the surface to a height of 20,000 to 60,000 feet, depending on latitude.
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Posted in Aviation Weather Terms | Tagged Aviation Weather, FAA Pilot's Handbook, Weather
Tropopause. The boundary layer between the troposphere and the mesosphere which acts as a lid to confine most of the water vapor, and the associated weather, to the troposphere.
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Posted in Aviation Weather Terms | Tagged Aviation Weather, FAA Pilot's Handbook, Weather