I believe these strings are in libgweather and not gnome-weather.
libgweather actually provides two potfiles, these strings should be in the libgweather potfile instead of the locations one.
https://git.gnome.org/browse/libgweather/tree/libgweather/gweather-weather.c https://git.gnome.org/browse/libgweather/tree/po/POTFILES.in https://translations.launchpad.net/ubuntu/artful/+source/libgweather/+pots/libgweather
From the publishing history, libgweather has been in main continuously for years.
I believe these strings are in libgweather and not gnome-weather.
libgweather actually provides two potfiles, these strings should be in the libgweather potfile instead of the locations one.
https:/ /git.gnome. org/browse/ libgweather/ tree/libgweathe r/gweather- weather. c /git.gnome. org/browse/ libgweather/ tree/po/ POTFILES. in /translations. launchpad. net/ubuntu/ artful/ +source/ libgweather/ +pots/libgweath er
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From the publishing history, libgweather has been in main continuously for years.