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  1. Workshop: Stratospheric predictability and impact on the troposphere ECMWF | Reading | 18-21 November 2019 https://www.ecmwf.int/en/learning/workshops/workshop-stratospheric-predictability-impact-troposphere Interesting presentation: Reducing Bias with Gravity Wave Drag
  2. Even when SSW happens, we don't know the type (different effects in troposphere), the PV orientation, PV cells position(in a case of split), propagation, tropospheric reaction ... We have seen what happened with the last SSW. Turkey and Balkans are having very warm autman weather and this pattern will follow until the end of november. To shift AC over this area which extends even over the Ural a strong impulse is needed (IMHO). MJO moved too fast through favourable blocking phases , thus we can't feel their effect in Europe.
  3. Great posts @Armando S , @Snowy Hibbo, and @OHweather! I have one more opinion about the situation (IMHO), impressive Rossby wave train is similar to: 1. North American dipole (NAD): 2. Or, maybe, Tropical/ Northern Hemisphere (TNH). Michael Ventrice‏: https://twitter.com/MJVentrice/status/1192083669135085569 I am waiting for Yours comments.
  4. Exellent work Bring Back. Does the Blob really affect winter weather conditions in Europe? Paper: https://www.climate.gov/news-features/blogs/enso/seeing-red-across-north-pacific-ocean Atmospheric connection to the Blob, "Tropical/Northern Hemisphere” (TNH) pattern: Link: https://alaskapacificblob.wordpress.com/2017/08/22/atmospheric-connection-to-the-blob/
  5. Is propagation being worse because +PDO ? https://journals.ametsoc.org/doi/pdf/10.1175/JCLI-D-17-0266.1 https://people.nwra.com/resumes/dunkerton/pubs/sci.294.xx.581.pdf
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