With 3 relatively big sunspot-groups on our star, solar activity is at least moderate since a couple of days.
Yesterday active region 11261 managed to explode in a long duration M1.4 flare.
The flare was associated with Type II and IV radiobursts, a 220 sfu tenflare and an earth directed full halo CME.
Interpreting STEREO beacon images, the dense parts of the plasma cloud are on a course directly towards our planet.
The solar terrestrial activity report (http://www.solen.info/solar/
) gives an impact time after 09 UTC on August 04th.
NOAA SWPC has issued an A-index grreater 20 watch for August 5th.
In the ACE EPAM instruments, the early stages of a ramp like signature, indicating the CME arrival, are visible.
So the STAR timing might be correct.
Stay tuned for updates!