Solar activity was at low levels. Region 322 (N19, L=348) produced the two largest flares of the period, a C3.6 x-ray flare at 27/0945Z and a C2.3 x-ray flare at 27/1455Z (both correlated using SXI imagery). Region 321 (N05E34) has become a beta-gamma-delta (weak) region which produced several low-level flares during the period. Region 319 (N13W01) has shown rapid development and has become a beta-gamma class group over the past 24 hours. Newly assigned Region 325 (N12E80-old Region 296) has begun to rotate into view and was a large complex region on its previous rotation. New Region 324 (S16E68) was also assigned today.

Solar activity is expected to be at low levels. Regions 319 and 321 have the potential of producing M-class flare activity

The geomagnetic field ranged from quiet to minor storm levels. The Bz component of the interplanetary magnetic field ranged from +/- 10 nT throughout the period due to a recurrent high speed stream (approximately 525 km/s at the time of this writing). The greater than 2 MeV electron fluxes at geosynchronous orbit reached moderate levels today.

The geomagnetic field is expected to be at predominantly active levels. Minor storm conditions are possible through day one of the interval due to a favorably positioned recurrent coronal hole. Days two and three should see a return to predominantly unsettled levels with intermittent active conditions.

  觀測的       27 Mar 141
  預測的   28 Mar-30 Mar  150/155/155
  90天平均值        27 Mar 132

  觀測的 Afr/Ap 26 Mar  007/008
  估算值     Afr/Ap 27 Mar  020/025
  預測的    Afr/Ap 28 Mar-30 Mar  012/015-010/012-010/012