Solar activity was at low levels. Region 314 (S13W14) produced a C8.4 flare at 15/2016 UTC and a C3.7 flare at 15/1530 UTC. This region has continued its rapid growth, more than doubling in area coverage over the past twenty-four hours to 220 millionths. Increased magnetic complexity in the trailing spots of Region 314 suggest a weak delta configuration may be forming. Region 306 (N07W33) appears to be breaking up and may be developing a weak delta configuration in the northern portion of the largest spot. NOAA/SXI imagery indicates a new region, rotating onto the east limb at N17, as the source of a number of B-class flares and one minor C-class flare. New Region 315 (N03W74) was numbered today.

Solar activity is expected to be at low levels. Regions 306, 314 and the east limb region at N17 have C-class potential. Regions 306 and 314 have a slight chance of M-class activity.

The geomagnetic field has been at unsettled to active levels with one period of minor storm levels. Solar wind velocity has been steady at 600 km/s and Bz has been, on average, slightly southward.

The geomagnetic field is expected to be at quiet to active levels. Continued high speed stream effects are expected on day one and day two of the period. CME effects from the DSF on 14 March are possible on day three.

  Observed       15 Mar 131
  Predicted   16 Mar-18 Mar  135/140/140
  90 Day Mean        15 Mar 141

  Observed Afr/Ap 14 Mar  016/025
  Estimated     Afr/Ap 15 Mar  021/022
  Predicted    Afr/Ap 16 Mar-18 Mar  015/020-015/020-015/020