The stratosphere, blocking, and a hemispheric pattern change
What exactly could a ridge in the Kara Sea, the remnants of Hurricane Nicole, and a circulation in the stratosphere all have in common? They’ll all have significant impacts on a changing weather pattern in the Northern Hemisphere over the next two weeks. Meteorology is a fickle, uncertain, and highly detailed process in almost every regard. But every once and a while, the fluid process that runs through our planets entire atmosphere can give us a show — where multiple processes come together, and they can be easily visualized and understood.
What’s occurring over the next 7 days is, by and large, a hemispheric pattern change. The progressive pattern across the United States, which has been dominated by a Pacific Jet and relatively uneventful disturbances, will undoubtedly shift. Changing wavelengths are likely to make the pattern changes effects even more dramatic. But the most interesting aspect is where, when and why these changes are occurring.
