Solar activity was very low. Today's activity consisted of a few, low-level B-class flares, all from Region 927 (N10E19). The delta configuration reported yesterday appears to have decayed during the past 24 hours. Region 926 (S10E09) was quiet and stable. New Region 928 (S07W32) emerged on the disk today as a small C-type group.

Solar activity is expected to be very low to low. There is a slight chance for an isolated M-class flare.

The geomagnetic field ranged from quiet to severe storm levels during the past 24 hours. An initially quiet field became disturbed after 0500Z due to an extended period of southward interplanetary magnetic field. Active to minor storm levels were observed initially but there was a strong substorm interval from 0800-1000Z which increased the level to major storm at some mid-latitude stations and severe storm at some high latitude sites. Conditions have been at active to minor storm levels since 1000Z. Solar wind signatures appear to be most consistent with a solar sector boundary crossing, which was also seen 27 days ago during the last solar rotation. The greater than 2 MeV electron flux reached high levels during the past 24 hours.

The geomagnetic field is expected to be quiet to unsettled during the next 24 hours (1 December) as the current disturbance subsides. Conditions should be predominantly quiet for the second and third days (2-3 December).

  Observed       30 Nov 084
  Predicted   01 Dec-03 Dec  085/085/085
  90 Day Mean        30 Nov 079

  Observed Afr/Ap 29 Nov  006/006
  Estimated     Afr/Ap 30 Nov  020/030
  Predicted    Afr/Ap 01 Dec-03 Dec  007/015-005/005-005/005