bobbutts Posted November 8, 2011 Share Posted November 8, 2011 NAO : difference between pressure near Iceland and near Greenland. +NAO : no Greenland block. Lower pressure in Greenland than Iceland. Loading pattern: http://www.cpc.ncep....o.loading.shtml -NAO : Greenland block, higher pressure in Greenland than Iceland. PNA : ridge vs trough in the East vs the West +PNA : trough East, ridge West. Loading pattern: http://www.cpc.ncep....a.loading.shtml -PNA : ridge East, trough West +AO : loading pattern: http://www.cpc.ncep....o.loading.shtml +EPO : favors a trough over Alaska and a ridge over the Great Lakes and Ontario. This can precede and/or accompany warmer temps in the Midwest and Northeast. -EPO : Ridge over Alaska and trough over the Great Lakes and Ontario. Another link that shows the 500mb and surface temp anomalies for the NAO, PNA, EPO and WPO in North America:http://www.esrl.noaa...casts/teleconn/ More detailed links to learning resources from NW CONNECTICUT) resources here: Post Just a few I had for reference.I will attemt to maintain this OP with corrections and additions unless someone more qualified wants to take over Link to comment Share on other sites More sharing options...
Sock Puppet Posted November 9, 2011 Share Posted November 9, 2011 Thanks, great thread Link to comment Share on other sites More sharing options...
Ellinwood Posted November 9, 2011 Share Posted November 9, 2011 +EPO favors a trough over Alaska and a ridge over the Great Lakes and Ontario. This can precede and/or accompany warmer temps in the Midwest and Northeast. Flip it for -EPO. 500mb anomaly correlation links... invert the temperature anomalies for the negative phase of each teleconnection: +NAO loading pattern: http://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/nao.loading.shtml +AO loading pattern: http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/ao.loading.shtml +PNA loading pattern: http://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/pna.loading.shtml Another link that shows the 500mb and surface temp anomalies for the NAO, PNA, EPO and WPO in North America: http://www.esrl.noaa.gov/psd/forecasts/teleconn/ Link to comment Share on other sites More sharing options...
Quixotic1 Posted November 10, 2011 Share Posted November 10, 2011 Mods, didn't know where or if you wanted this, but I found this thread started by NW CONNECTICUT a few weeks ago to be very helpful. http://www.americanwx.com/bb/index.php/topic/27398-some-sites-which-are-helping-me-out-while-starting-to-learn-wx/ Link to comment Share on other sites More sharing options...
ChrisM Posted November 13, 2011 Share Posted November 13, 2011 Mods, didn't know where or if you wanted this, but I found this thread started by NW CONNECTICUT a few weeks ago to be very helpful. http://www.americanwx.com/bb/index.php/topic/27398-some-sites-which-are-helping-me-out-while-starting-to-learn-wx/ Thanks man, good to know. Hopefully a mod can move it here Link to comment Share on other sites More sharing options...
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