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Hi Daryl,
No the url hasn't changed and I'm getting the same results as you.
        NCEP-RUC2-CONUS_20km-pressure_RUN_2011-12-01T21:00:00Z          --
         NCEP-RUC2-CONUS_20km-pressure_RUN_2011-12-01T20:00:00Z                 
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         NCEP-RUC2-CONUS_20km-pressure_RUN_2011-12-01T19:00:00Z                 
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         NCEP-RUC2-CONUS_20km-pressure_RUN_2011-12-01T18:00:00Z                 
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         NCEP-RUC2-CONUS_20km-pressure_RUN_2011-12-01T17:00:00Z
The file access is updating so the data is arriving and available.
         RUC2_CONUS_20km_pressure_20111202_1500.grib2   200.6 Mbytes    
2011-12-02 16:13:16Z
         RUC2_CONUS_20km_pressure_20111202_1400.grib2   200.7 Mbytes    
2011-12-02 15:13:24Z
         RUC2_CONUS_20km_pressure_20111202_1300.grib2   201.4 Mbytes    
2011-12-02 14:12:49Z
         RUC2_CONUS_20km_pressure_20111202_1200.grib2   201.6 Mbytes    
2011-12-02 13:46:56Z
         RUC2_CONUS_20km_pressure_20111202_1100.grib2   201.5 Mbytes    
2011-12-02 12:13:12Z
         RUC2_CONUS_20km_pressure_20111202_1000.grib2   201.8 Mbytes    
2011-12-02 11:13:02Z
Ethan might have an explanation for this?
Robb...
Ticket Details
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Ticket ID: BDM-555642
Department: Support THREDDS
Priority: Normal
Status: Open