Stormchaserchuck1 Posted September 28, 2023 Share Posted September 28, 2023 Starting about October 9th, there is a real nice signal for +PNA from 18z GFS ensembles http://www.meteo.psu.edu/ewall/ENSHGTAVGNH_18z/ensloopmref.html This is, as ENSO subsurface is starting to warm rapidly https://ibb.co/1nrDtgp (I have in the past correlated ENSO subsurface conditions with + and - phases of the PNA in 0-time. The +PNA being show on 18z GFS ensembles days 12-15 is broad and deep, would reflect some stronger ENSO coupling to the N. Pacific pattern, and possible subsurface strengthening.) 1 Link to comment Share on other sites More sharing options...
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