Solar activity was very low. There were only two, low-level B-class flares during the past 24 hours, both from Region 540 (S15W91) which rotated around the west limb today. The remainder of the solar disk was stable and quiet.

Solar activity is expected to be very low for the next three days (26-28 January), with only a slight chance for an isolated C-class event.

The geomagnetic field ranged from unsettled to minor storm levels during the past 24 hours. An interval of relatively smooth rotation of the interplanetary magnetic field from zero down to about -12 nT started at about 24/1800 UTC and ended around 25/0300 UTC. The magnetic signature was accompanied by enhanced density and declining temperatures, all of which are suggestive of transient flow. The geomagnetic field responded with minor storm level conditions beginning around 0000 UTC and lasting through about 0900 UTC. Geomagnetic activity has been gradually declining since 0900 UTC through the end of the day. The greater than 2 MeV electron fluxes reached high levels during the past 24 hours.

The geomagnetic field is expected to be mostly unsettled, with a chance for some isolated active periods for the next two days (26-27 January). An increase to unsettled to active is expected on the third day (28 January) in response to a favorably positioned coronal hole.

  Observed       25 Jan 102
  Predicted   26 Jan-28 Jan  100/100/105
  90 Day Mean        25 Jan 132

  Observed Afr/Ap 24 Jan  010/015
  Estimated     Afr/Ap 25 Jan  020/033
  Predicted    Afr/Ap 26 Jan-28 Jan  010/015-010/015-015/020