[thredds] CONUS 12KM data question

[Robert Wardwell]

Hi, 

I have been querying wind data from your site at http://motherlode.ucar.edu:8080/thredds/catalog.html in order to model tephra and ashfall deposits which would accumulate in the event of a volcanic eruption at Mount St. Helens. Over the past few weeks I've had trouble accessing data for the NCEP-NAM-CONUS_12km Forecast Model Runs, and have been receiving errors in the browser window. 

For example, I am trying make the following request today. 
http://motherlode.ucar.edu:8080/thredds/ncss/grid/fmrc/NCEP/NAM/CONUS_12km/runs/NCEP-NAM-CONUS_12km_best.ncd?var=Geopotential_height&var=U-component_of_wind&var=V-component_of_wind&latitude=46.2&longitude=-122.18&time=2008-02-27T12:00:00&accept=csv&point=true

I generally make this request at 3pm PST using an automated Python script, and it works great. The last few weeks, however, I have only been able to acess the data sporadically. Some days it works and some days I receive the error messages. I also noticed that the problem seems limited to the CONUS_12KM model. All of the other models I've tried seem to work fine. 

I am not sure if there is a problem with my request or a problem with data availability. Any thoughts you have on the matter would be greatly appreciated. 

Sincerely, 

Rob Wardwell 
USGS - Cascades Volcano Observatory
1300 Se Cardinal Ct. Bldg. 10, Suite 100
Vancouver, WA 98683
360-993-8908

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