Solar activity was at high levels. An M8.2/1N flare occurred at 10/1231 UTC from Region 9893(N19W14) characterized by parallel ribbons and multiple eruptive centers. Associated with this flare was a Type II radio burst (702 km/s) and a partial halo CME observed from SOHO/LASCO imagery. Region 9893 has begun to decay and has simplified to a beta-gamma magnetic configuration. Region 9899 (N18E22) has increased in magnetic complexity to a beta-gamma spot and produced an M1.6/1n flare at 10/1907 UTC. Region 9901(N20W02) has shown growth in spot count and magnetic complexity. Region 9904 (S16W21) has developed a small delta configuration in the leader spot. Region 9905 (S17E04) was numbered today.

Solar activity is expected to be moderate. Region 9893 is in decay phase but still has the potential for a major flare. Region 9899 and Region 9901 are in a growth phase and could produce M-class events.

The geomagnetic field was at quiet levels for most of the day with one period of unsettled conditions from 15-18Z. The lingering effects of the high speed stream appear to be ending. Greater than 2 MeV electrons have returned to near background levels after three days of enhancement.

The geomagnetic field is expected to be quiet to active. There is a chance of increased geomagnetic activity late on day two due to a CME shock passage. On day three of the forecast period another CME shock is expected (from the M8/1N flare on 10/1231 UTC) and geomagnetic activity is expected to reach unsettled to active conditions. There is a slight chance of isolated minor storm levels especially at high latitudes.

  Observed       10 Apr 194
  Predicted   11 Apr-13 Apr  195/190/185
  90 Day Mean        10 Apr 203

  Observed Afr/Ap 09 Apr  002/006
  Estimated     Afr/Ap 10 Apr  006/008
  Predicted    Afr/Ap 11 Apr-13 Apr  004/008-008/010-012/015