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Illustration of St. Elmo's fire on a ship at sea Electrostatic discharge flashes across the windscreen of a KC-10 cockpit.. St. Elmo's fire (also called witchfire or witch's fire) [1] is a weather phenomenon in which luminous plasma is created by a corona discharge from a rod-like object such as a mast, spire, chimney, or animal horn [2] in an atmospheric electric field.
Pilots evacuating in preparation for Hurricane Idalia observed bright blue light outside their aircraft, an event called St. Elmo’s fire. Here’s what causes it.
The electrical discharges at the mastheads of ships were read as a sign of his protection and came to be called "Saint Elmo's Fire". [36] [37] Thus, Saint Elmo's Fire was usually good luck in traditional sailor's lore, but because it is a sign of electricity in the air and interferes with compass readings, sailors sometimes regarded it as an ...
Some ghost lights such as St. Elmo's fire or the shiranui have been explained as optical phenomena of light emitted through electrical activity. Other types may be due to combustion of flammable gases, ball lightning , meteors , torches and other human-made fires, the misperception of human objects, and pranks.
The Royal Air Force’s 99 Squadron has released a video showing the phenomenon known as St Elmo’s Fire developing at the nose of a C-17 Globemaster plane during a recent nighttime flight near ...
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St. Elmo's Fire and normal sparks both can appear when high electrical voltage affects a gas. St. Elmo's fire is seen during thunderstorms when the ground below the storm is electrically charged, and there is high voltage in the air between the cloud and the ground. The voltage tears apart the air molecules and the gas begins to glow.
While the Hurricane Hunters were doing a winter storm flight across the Atlantic Ocean on Feb. 15, they captured weather phenomenon St. Elmo's Fire.