Warning, January the 26th:
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Active region Catania#99 (NOAA0848) is decaying and has now a
simpler beta magnetic configuration. Therefore, we expect a low solar
activity with only a slight chance of C flare.
The geomagnetic activity rose temporarily to active levels in the last
few hours due to a new rise of the solar wind speed, associated with a
negative Bz, that was not expected.
Now, the speed has stabilized at 550km/s, with the Bz component fluctuating between + and - 10 nT.
Although, the geomagnetic field is now back to unsettled levels, we
predict unsettled to active conditions for the next 24 hours, then
followed by a decay to quiet to unsettled conditions.
Information from January the 27th:
The solar wind speed knows a revival and climbed up to 650 km/s.
The cause is possibly the last part of the recurrent coronal hole which
is ready to rotate over the westlimb. K_p went up to 6 last night.
Geomagnetic conditions are calm now, we expect no disturbances the
coming 48 hours.
------End of solar and geomagnetic bulletin.
The geomagnetic activity has been high due to the solar wind. The Earth inclined towards the South producing Aurora.
Kp Index was 6!
We have to point out the 7.7 earthquake in BANDA SEA (Indonesia) on the 27th which should be one of the effects on Earth.
Furthermore, the increase of the Kp level has elevated the risk of active geomagnetic field. The solar wind is high. Therefore we should consider us
being in an ACTIVE GEOMAGNETIC ALERT for the next 6 to 12 hours having possibly other kind of events during that period of time.
For those who do not remember the meaning of a Kp 6, here is some information from the
Considered a Moderate G2 level
Power systems: high-latitude power systems may experience voltage alarms, long-duration storms may cause transformer damage.
Spacecraft operations: corrective actions to orientation may be required by ground control; possible changes in drag affect orbit predictions.
Other systems: HF radio propagation can fade at higher latitudes, and aurora has been seen as low as New York and Idaho (typically 55° geomagnetic