Posts

Showing posts from August, 2017

Winter 2017/2018 Outlook

Image
By Paul Huntington

What is next Winter going to bring to the mid latitudes in the Northern Hemisphere and how are the large planetary waves going to behave? Planetary waves are the oscillations in the jet stream around the mid latitudes (Westerlies) that bring either high pressure (ridging) or low pressures (troughing) in the atmosphere and behave much different than the low pressures around the equator that form more from very warm ocean surface water and air condensing into water vapor/clouds and large cumulus thunderstorms/cyclones that create a feedback loop called the Madden Julian Oscillation (MJO), this reverberant affect propagates eastward around the equatorial world kind of like a stack of dominoes folding upon one another. It is very hard to predict when and where it might find a comfortable region stalling out and influencing the Northern Hemispheres Jet stream dynamics but seems to be acting up recently and could be a major player in the extension of the Asia Pacific Jet…