orangeblood wrote:If we want to increase our odds of winter weather, don't you think we need to get rid of this pesky negative PNA ??? We are almost 4 Deg F above normal so far this winter with very minimal chances of frozen precip...need a pattern change quickly!!
https://www.esrl.noaa.gov/psd/tmp/compo ... 25YWLj.gif
Our problem is not the -PNA. With a -EPO the -PNA has allowed the direct discharge into the southern plains instead of east when cold has been there. The issue has been the near record +AO this winter, not a little positive a lot positive. Several times there were forecasted (albeit longer range) -AO only turn out to be record +AO. We've had less than a week of -AO values...When the AO is so positive the SE ridge flexes. +PNA can be chilly but it's mostly boring NW flow. Which is what the next week or so is. I'm hoping the SSW will change the AO in Feb.

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