Hi Gilbert,
>From the McIDAS-X docs:
STNPLOT uses the station database files *STNDB.CORE*, *STNDB.SITE* and
*STNDB.USER*. The *.CORE* file is supplied with McIDAS-X and should not be
modified. The *.USER* file overrides the *.SITE* file, which overrides the
*.CORE* file. This order of precedence allows you or your site to change
existing stations and/or add new stations in your *.USER* or *.SITE* file.
To create a *.USER* or *.SITE* file, first run a command similar to the
following to create the file in the first writable *MCPATH* directory.
*STNLIST KMSN FORM=USER DEV=T STNDB.USER A*
The file contains one long line that defines the data for station KMSN. An
equal sign (=) denotes the value of each of the 10 fields (IDN, ID, LATLON,
ULATLON, ELE, UELE, ST, CO, NAME, and DATATYPE). Replace the values in the
KMSN entry with those for your station and add lines as needed for
additional stations. Entries do not have to include all ten fields. The
required fields are LATLON and at least one of the following: ID, IDN,
USERID. Other fields like CO, ST and NAME are useful but not required. Note
that you *must* follow the one-entry-per-line format for all stations in
your *.USER* and *.SITE* files. Line breaks are not permitted.
https://www.ssec.wisc.edu/mcidas/doc/users_guide/current/stnplot.html
That is just from one cursory search. The long and short of it is you do
not edit the .CORE file, you create a .SITE and/or a .USER file.
Hope this helps,
-Mike
On Mon, May 18, 2026 at 8:29 PM Sebenste, Gilbert <sebensteg@xxxxxxx> wrote:
> Good evening everyone,
>
> STNDB.CORE is a binary file, and can’t be updated with new stations. Is
> there another file I can use to add to the new stations that have come
> online since early 2024?
>
>
>
> Gilbert Sebenste
>
> Meteorology Support Analyst
>
>
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--
- Mike Zuranski
