This is a local archive of the 7-day plots from SWPC.

The daily plots are available here:
https://www.swpc.noaa.gov/products/planetary-k-index
and
https://services.swpc.noaa.gov/images/station-k-index.png

The SWPC does NOT archive these 7-day plots, so we do it ourselves.

The SWPC does archive its 3-day K-index plots.  They are available here:
Current 3-day plot: https://www.swpc.noaa.gov/products/planetary-k-index
Archive of old 3-day plots: ftp://ftp.swpc.noaa.gov/pub/warehouse/