sebastiaan1973

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About sebastiaan1973

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  1. Yet another winter with a positive NAO. The Finnish guys with the research are proving right. Declining solar activity -> Positive NAO. http://onlinelibrary.wiley.com/doi/10.1002/2013JD021343/abstract So, this is the final winter with this correlation for a while.
  2. It's totally normal for the QBO being in the westerly phase this spring. In the summer it will change. Last year was an exception.
  3. No, not that I'm aware of. Meteociel is French, I'm Dutch.
  4. http://www.weerplaza.nl/15daagseverwachting/?r=midden&type=eps_pluim Here you are Steve. Dauwpunt=dewpoint.
  5. This is a plume of Leeuwarden, in the north of the Netherlands. Obviously the EC oper is on the warm side from next weekend on. And the other is the dewpoint of de Bilt.
  6. At day6 UKMO0h performs the best of several models including EC. Altough the differences are not big.
  7. Dewpoint De Bilt for the plume can be found here http://www.weerplaza.nl/15daagseverwachting/?r=midden&type=eps_pluim
  8. http://www.clim-past-discuss.net/cp-2017-8/cp-2017-8.pdf
  9. Too early. Ian Fergusson tweeted about half februar.
  10. I Think we see the results of the stratospheric warming. Cohen wrote: The immediate response from the PV weakening will likely be increasing tropospheric ridging/positive geopotential height anomalies over northwestern North America directly under the stratospheric ridge and a deep tropospheric polar low under the displaced stratospheric PV over the north slope of Asia. Rising heights over Alaska and Northwest Canada will help force troughing/ negative geopotential height anomalies accompanied by a cooling trend downstream over the Eastern US. Counterclockwise circulation around the polar low over the north slope of Siberia will transport North Atlantic maritime air into western Eurasia including Europe resulting in a trend to milder temperatures across the region. At 192h we see an area of high pressure by Alaska. After that, we have to wait for; However if there are subsequent pulses of WAFz/poleward heat transport this should further weaken the stratospheric PV and nudge it closer to Europe. This could either turn the winds more northerly across Europe or even force the stratospheric PV into Europe. Both of these scenarios would reverse the weather once again across Europe and result in much colder temperatures. https://www.aer.com/science-research/climate-weather/arctic-oscillation
  11. Well. The end of februar 2006 was (very) cold for the continent. Phase 1 and 2 have high pressure displaced to the north. Altough phase 1 less than phase 2.
  12. Why is MJO phase 1 so important to you?
  13. Nick, what can we expect of MJO phase 1? thanks.