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[python #PLC-371608]: Help Script

Hi, and thanks for reaching out.

If you browse Unidata's TDS for the data you're looking for, 
https://thredds.ucar.edu/thredds/catalog/grib/NCEP/GFS/Global_0p25deg_ana/catalog.html,
 you'll see that we do not archive data long-term. For this particular GFS 
data, we only hold on to about a week's worth; your September data are not 
available.

You can browse a THREDDS Data Server provided by NOAA NCEI for 0.5 degree GFS 
analysis from a bit further back, including your dates:

  https://www.ncei.noaa.gov/thredds/catalog/model-gfs-g4-anl-files/catalog.html

Note that this will require constructing a new TDSCatalog link pointing to the 
appropriate dates. You can find an example accessing GFS data on the NCEI TDS 
here: 
https://unidata.github.io/python-training/gallery/850hpa_temperature_advection/,
 though note that this example is very out of date outside of the Siphon code 
snippets.

Let us know if you run into any Siphon-related headaches! I hope this helps.


Best,

Drew


> I kindly request your help in creating a script with MetPy. I am currently
> using Siphon, a TDS catalog, but I need data for the dates September 3, 10,
> and 23, 2023. How can I achieve this?
> 
> Also, I am attaching a part of the script I am currently using. Thank you
> very much for your attention and I remain attentive to your guidance.
> 


Ticket Details
===================
Ticket ID: PLC-371608
Department: Support Python
Priority: Low
Status: Closed
===================
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