A megacryometeor is a very large chunk of ice, which, despite sharing many textural, hydro-chemical and isotopic features detected in large hailstones, are formed under unusual atmospheric conditions which clearly differ from those of the cumulonimbus clouds scenario (i.e. clear-sky conditions). They are sometimes called huge hailstones, but don't need to form in thunderstorms. Jesus Martinez-Frias, a planetary geologist of the Center for Astrobiology in Madrid pioneered research on megacryometeors in January 2000, after ice chunks weighing up to 6.6 pounds rained on Spain out of cloudless skies for 10 days. Snowflakes by Wilson Bentley, 1902 Ice is the name given to any one of the 14 known solid phases of water. ... Cumulonimbus (Cb) is a type of cloud that is tall, dense, and involved in thunderstorms and other intense weather. ... This does not cite any references or sources. ... A shelf cloud associated with a heavy or severe thunderstorm over Enschede, The Netherlands. ...
More than 50 megacryometeors have been recorded since the year 2000. They vary in size between 0.5 kg to over 200 kg. One was measured in Brazil as 220 kg.[1] 2000 (MM) was a leap year starting on Saturday of the Gregorian calendar. ...
Formation
The process that creates megacryometeors is not fully understood. They may have a similar mechanism of formation as hailstones, and have been recorded falling out of the clear sky in the summer. Analysis of megacryometeors show that their composition matches normal rainwater for the areas in which they fell. It is known that they do not come from airplane toilets because the large chunks of ice that occasionally do fall from airliners are distinctly blue due to the disinfectant used. In addition there are many events which occurred prior to the invention of the aircraft. First results indicate that fluctuations in tropopause can be related with their formation. They are sometimes confused with meteors because they can leave small impact craters. Hailstone Hail is a type of graupel (a form of precipitation) composed of balls or irregular lumps of ice. ... Rain is a type of precipitation which forms when separate drops of water fall to the Earths surface from clouds. ... The tropopause is a boundary region in the atmosphere between the troposphere and the stratosphere. ... Photo of a burst of meteors with extended exposure time A meteor is the visible path of a meteoroid that enters the Earths (or another bodys) atmosphere, commonly called a shooting star or falling star. ...
A megacryometeor is a very large chunk of ice, which, despite sharing many textural, hydrochemical and isotopic features detected in large hailstones, are formed under unusual atmospheric conditions which clearly differ from those of the cumulonimbus clouds scenario (i.e.
More than 50 megacryometeors have been recorded since the year 2000.
Analysis of megacryometeors show that their composition matches normal rainwater for the areas in which they fell.
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