NOAA

La Nina ( unconfirmed) has set its course and is affecting the Gulf  and Jet stream. The atmospheric and oceanic streams modis operandi is to determine the polar vortexes and their limitations as they work themselves up and down from the poles. These circular winds going round the globe have in them arms that are affected by tropical warmth coming up. These arms can cause static enduring  inversion like pockets as they protrude out of the  circular vortexes.These are areas of weather that stay for periods of time.

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