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Friday, December 2, 2011

12z ECMWF Backs Off December 9-12 MW/GL/OV Storm

Notes: MW= Midwest, GL= Great Lakes, OV= Ohio Valley.


The ECMWF has backed off the idea of a storm system in the Midwest/Great Lakes/Ohio Valley, and judging by teleconnections, this storm my come through yet. The PNA is forecasted to go neutral/positive (good for winter storms), the AO is projected to fall (good for storms) and the NAO may go negative as well (good for cold). While these teleconnections are not in necessarily ideal territory for storms, a strong storm like the one projected could still occur.
We will continue to watch the models for any sign of this storm returning to the model's vision soon.

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