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    Best posts made by tawmdotcom

    • RE: Weird wind direction by HRDPS model

      @idefix37 Hello, I have to respectfully disagree. If you examine the attached images of the spot location 54°N 055°W off the south Labrador coast for the Tuesday Dec 10 evening period, both the ECMWF and GFS are consistent with the pressure pattern by rightly depicting northwesterlies with a cross-isobaric flow of about 25° more or less. Meanwhile, the HRDP is depicting a west-southwesterly flow, nearly at right angles to the isobars. The situation becomes even more suspect upon examining the HRDPS output using the Spotwx app for same location and time-period. Both the time-series and tabular forecast data are correctly depicting a northwest flow. Furthermore, the official marine forecast for the South Labrador Coast is predicting northwesterlies for the period in question, consistent with the ECMWF, GFS, and Spotwx. On a related note, I'm a marine meteorologist with close to 3 decades in the biz, so based on my experience I strongly suspect there's something amiss with the HRDPS wind direction as depicted on Windy. Cheers.. TDC.

      Windy ECMWF time-series 54N055W 10-12-2024.jpg Windy GFS time-series 54N055W 10-12-2024.jpg Windy HRDPS time-series 54N055W 10-12-2024.jpg Spotwx time-series 54N055W 10-12-2024.jpg Spotwx tabular 54N055W 10-12-2024.jpg ECCC marine forecast for SLC issued 10-12-2024.jpg

      posted in Bug Reports
      T
      tawmdotcom
    • RE: Weird wind direction by HRDPS model

      The HRDPS cross-isobaric flow looks OK now, many thanks for looking into this and implementing a fix, cheers.. TDC.

      posted in Bug Reports
      T
      tawmdotcom