Solar activity was moderate. Region 1494 (S18W06) produced an M2/1b at 06/2006Z associated with Type II (est. speed 1148 km/s) and Type IV radio sweeps. An associated CME was first visible in SOHO LASCO C2 imagery at 06/2036Z. Further analysis will be conducted as more images become available to determine geoeffectiveness. A filament eruption was observed in SDO AIA 193 imagery around 05/1945Z near N12W10. The CME was first visible in STEREO COR 2 imagery at 05/2039Z. The majority of the ejecta appears to be north of the ecliptic plane, however, there is a weak Earth-directed component. A model run is in progress to determine geoeffectiveness. The Penticton 10 cm Flux value was estimated due to flare enhancement.

Solar activity is expected to be low with a slight chance for an isolated M-class event for the next three days (07-09 June).

The geomagnetic field was mostly unsettled to active for the past 24 hours due to effects from a favorably positioned coronal hole high speed stream (CH HSS). The greater than 2 MeV electron flux at geosynchronous orbit reached high levels during the period.

The geomagnetic field is expected to be unsettled with a chance for active periods on day one (07 June) due to continued effects from the CH HSS. Quiet to unsettled conditions are expected on days two and three (08-09 June) as effects from the CH HSS begin to subside.

  Observed       06 Jun 140
  Predicted   07 Jun-09 Jun  140/140/140
  90 Day Mean        06 Jun 117

  Observed Afr/Ap 05 Jun  015/021
  Estimated     Afr/Ap 06 Jun  013/016
  Predicted    Afr/Ap 07 Jun-09 Jun  011/015-007/012-006/008