Solar activity was very low. No flares occurred during the past 24 hours and the solar disk was spotless.

Solar activity is expected to be very low.

The geomagnetic field ranged from unsettled to minor storm levels. Minor storm levels predominated from 29/2100-01/0300Z due to a high speed stream with solar wind speeds in the 700-800 km/s range and an interval of mostly negative Bz (values were mostly in the range from -6 nT to +2 nT). Unsettled to active levels followed through 01/0900Z as Bz slowly shifted to a less negative orientation. Activity was predominantly unsettled from 0900Z to the end of the period. Solar wind speeds remain elevated (700-800 km/s) as of forecast issue time but Bz has moderated with values ranging between -3 to +3 nT. The greater than 2 MeV electron flux at geosynchronous orbit was high.

The geomagnetic field is expected to be mostly unsettled with a chance for isolated active periods for the first day (02 March) due to persistent effects from the high speed stream. Conditions should decline to quiet to unsettled levels for the second day (03 March) as influence of the high speed stream is expected to wane. Conditions should be predominantly quiet by the third day (04 March).

  觀測的       01 Mar 069
  預測的   02 Mar-04 Mar  070/070/070
  90天平均值        01 Mar 075

  觀測的 Afr/Ap 29 Feb  018/027
  估算值     Afr/Ap 01 Mar  018/030
  預測的    Afr/Ap 02 Mar-04 Mar  012/015-008/008-005/005