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NAO and AO signalling a polar winter plunge?

  I highlighted in Monday's Look Ahead video how the CFS was predicting a less strong westerly flow across the Atlantic this winter and how things slipped into more negative territory the further into winter we got. Well here is that graph again. Notice howIt bounces around between negative and positive territory

5 week ahead things to know

1 - November-ish beginnings: A mild, dull, damp picture to begin the week. A light southeasterly airflow has a lot of moisture stored in the air, so the start of the week sees a lot of low cloud and patchy drizzle. Sunny breaks will feel warm. 2 - No frost: Mild

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