PRESTO FROM SIDC 02/05/00 14:57 UT
A halo CME was initiated on April 30, at 08:00 UT in the Catania active region
26 (NOAA 8976). Unsettled to active geomagnetic conditions are expected late
on May 2nd,and on May 3rd. A shock, possibly associated with this event, has already been measured by the ACE
(Lagrangian L1 point), today (May 2) at about 11:00 UT, i.e. after a delay of
about 51 hours.