Solar activity was low. Region 1564 (S14E01 - Esi/beta-gamma) produced occasional C-class flares including a C6 at 05/0347Z and a C7/Sn at 05/0806Z, neither of which were associated with significant radio emission. Region 1564 showed gradual spot and penumbral decay during the period, but retained a beta-gamma configuration due to polarity mixing in the vicinity of its intermediate spots. Region 1560 (N04W58 - Eai/beta-gamma-delta) showed minor spot loss in its trailer portion during the period. It retained a delta within its intermediate spots, but the delta appeared to be dissipating. The remaining spotted region were unremarkable. No new regions were numbered. No Earth-directed CME activity occurred during the period.

Solar activity is expected to be low through the period (06 - 08 September) with a chance for an isolated M-class flare during days 1 - 2.

Geomagnetic field activity ranged from quiet to major storm levels with a brief period of severe storm levels at high latitudes. An interplanetary shock passed the ACE spacecraft at 04/2203Z indicating the arrival of the CMEs observed on 02 September. Field activity increased to major storm levels during 05/0000 - 0300Z following the shock, then decreased to minor storm levels during 05/0300 - 0600Z. A further decrease to active levels occurred during 05/0300 - 0900Z. Quiet to unsettled levels occurred during the rest of the period with active to minor storm levels detected at high latitudes.

Geomagnetic field activity is expected to be at quiet to unsettled levels through the period (06 - 08 September) with a chance for active levels on day 1 due to possible weak coronal hole high-speed stream effects.

  Observed       05 Sep 133
  Predicted   06 Sep-08 Sep  130/130/125
  90 Day Mean        05 Sep 124

  Observed Afr/Ap 04 Sep  014/016
  Estimated     Afr/Ap 05 Sep  021/029
  Predicted    Afr/Ap 06 Sep-08 Sep  008/010-007/008-007/007