 DISCUSSION: Within the past week, there have been definitive signs of activity in association with Mount Etna. As seen in the video above (courtesy of the Protezione Civile), there was a fairly large ash cloud emanating from close to the peak of Mount Etna (which is an active stratovolcano located on the east coast of Sicily, Italy, in the Metropolitan City of Catania, between the cities of Messina and Catania). As this eruption period continued through the course of the day back on February 28th, there were also other growing concerns. As a volcanic eruption occurs, there are often major concerns for a growing threat to commercial and private aviation interests.
This is due to the fact that as a volcanic eruption persists, increasingly larger amounts of volcanic ash are suspended into the localized atmosphere before spreading out from the point of origin (i.e., Mount Etna in this particular case) and affecting other geographic regions in and around the point source of the volcanic ash. This spreading out of the original volcanic ash plume occurs as the prevailing winds through the depth of the atmosphere transport the ash cloud in a given direction before being spread out in a more dispersed manner as the concentration of the ash cloud slowly decreases. Therefore, even after several days from the original eruption, any residual ash suspended in the atmosphere has the ability to damage aircraft engines along with ash ejected from any residual volcanic activity associated with Mount Etna. To learn more about other topics in applied meteorology, be sure to click here! ©2017 Meteorologist Jordan Rabinowitz
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