NASA-NOAA satellite catches short-lived Tropical Cyclone Bouchra

NASA-NOAA satellite catches short-lived Tropical Cyclone Bouchra

6 years ago
Anonymous $L9wC17otzH

https://phys.org/news/2018-11-nasa-noaa-satellite-short-lived-tropical-cyclone.html

On Nov. 13, the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard NASA-NOAA's Suomi NPP satellite analyzed Tropical Depression Bouchra showed a disorganized storm. The Joint Typhoon Warning Center noted the storm appeared to have "shallow disorganized central convection sheared eastward, partly exposing a weak and ragged low level circulation."

Wind shear was stretching the storm out from west to east. In general, wind shear is a measure of how the speed and direction of winds change with altitude. Winds at different levels of the atmosphere pushed against the cylindrical circulation center and skewed it, weakening the rotation.

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