I have posted two graphs of CFH on my website at:
http://www.dennison.demon.co.uk/mike/cfh.htm (at the time f writing this
it is not linked from any other page).
One was from last Thursday after the X flare, and may show the immediate
effect of an M flare on propagation.
The other was last night.
They are quite different, and it is interesting to note the differences
and similarities. For instance, on Thursday it rose to a peak of about
S9+10dB at 0230 (just after the M flare) and the fell gradually to dawn,
but last night it peaked S9 at 2300 and very slowly fell from there.
Similarities are dips at about 0400 and a dip and peak at about 0630 (UK
dawn).
I will post more graphs to improve our understanding of what's normal so
that enhanced propagation and its causes can be identified.

Thanks are due to ON5OO for writing the monitoring software. Does anyone
have a good copy of the original EXE file? The one I posted on my site
is corrupt and I deleted all other copies - doh!

--
Mike, G3XDV
IO91VT
http://www.dennison.demon.co.uk/activity.htm