Solar activity was low. The largest event was a C3 flare from Region 1356 (N17W76) at 30/2232Z. Two coronal mass ejections (CMEs) were observed in SOHO/LASCO C2 imagery at 30/2112Z. The events appear to originate from filament eruptions. The first off the east limb beginning at 30/1922Z and the second near the west limb beginning at 30/2046Z in SDO/AIA 171 imagery. We are currently waiting on model runs to determine the possibility of a glancing blow from these events.

Solar activity is expected to be low with a slight chance for an M-class flare on day 1 (02 December) with M-class flare probabilities increasing to a chance for days 2-3 (03-04 December).

The geomagnetic field was quiet to unsettled with active to minor storm periods observed at high latitudes.

The geomagnetic field is expected to continue to be quiet to unsettled. There is still a possibility for activity from a southern polar extent coronal hole high speed stream (CH HSS).

  觀測的       01 Dec 155
  預測的   02 Dec-04 Dec  145/140/140
  90天平均值        01 Dec 142

  觀測的 Afr/Ap 30 Nov  009/010
  估算值     Afr/Ap 01 Dec  008/009
  預測的    Afr/Ap 02 Dec-04 Dec  007/008-007/008-006/007