Warming arctic at 30mb

Some recent SSWs – 2009. and 2001. AO is drifting down. It should accelerate. the GEFS sees the normal -AO temperature anomalies across the hemisphere. The 16 day GFS shows the dominance of the cold. The EC is splitting the cold polar vortex, A lot of uncertainty among the model ensembles on the AO.

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Euro Temp Update

It is hard to believe this kind of flip in the model, given the analogs and the actual weather in the source regions which argue for the opposite. I would be remiss to simply ignore this, I did not expect it. I still don’t believe this, but it’s simply too much to ignore or throw […]

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