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<br />N C EP /NCAR Reo n a lysis <br />500mb Geopotential Height (m) Composite Anomaly 1968-1996 cllmo <br /> <br /> <br />Feb to Mar: 20Q6 <br /> <br />- -- -I <br /> <br />· As actually predicted <br />I by the British 'Met <br />150' <br />I Office' last fall, the <br /> <br />120. i <br />I I NAO has been mostly <br /> <br />90 · <br /> <br />: negative this winter, <br />60 I <br />resulting in a cold <br />30 . <br />I winter in much of <br />. <br />o I <br />. Europe. The most <br />-30 <br />: recent SLP anomalies <br />-60; in February-March <br />-90' <br />; 2006 are some of the <br />-12 <br />: biggest on record, <br />-15' <br />I ironically one year <br />. <br /> <br />I after a similar spell in I <br /> <br />I <br /> <br />2005. 1 <br /> <br /> <br /> <br />