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Subtropical cyclone off Chile

Subtropical cyclone off Chile Image ID 2401
Acquisition date 09-May-2018
Over head time 16:00:00
Satellite Sensor goes-east
Sensor Channel(s) 2

The National Oceanic and Atmospheric Administration (NOAA) reported that a rarely seen subtropical cyclone formed in the south-eastern Pacific Ocean a few hundred miles off the coast of Chile. NOAA explained that, “The south-eastern Pacific Ocean is not conducive to tropical cyclone development. Sea surface temperatures off the west coast of South America are normally far too cold and the region is located in a semi-permanent high pressure zone, characterised by dry sinking air. NOAA satellite data showed sea surface temperatures at the site of the storm were just under 20 degrees Celsius (68 degrees Fahrenheit). While these temperatures are not usually warm enough for convective activity, the right atmospheric conditions in the vicinity of this storm allowed thunderstorms to form with wind speeds attaining the strength of a weak tropical storm”.

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