Monday, 5 December 2016 - 20:41 UTC
Sunspot region 2615 never really got going again after the two M-class events on 29 November. The sunspot region grew in size the past few days but never regained the magnetic complexity needed for M-class events. A shame as a nice earth-directed coronal mass ejection would have been very welcome during these quiet times. That means we shift our attention to coronal holes once more and guess what... we have a large coronal hole facing our planet today!
Tuesday, 29 November 2016 - 19:45 UTC
We've been a bit inactive the past few days just like our Sun but she woke us up today with an M-class solar flare!
Wednesday, 9 November 2016 - 09:43 UTC
A weak shock passage was detected by DSCOVR around 05:43 UTC this morning. This is likely the filament coronal mass ejection from 5 November that is now passing our planet. As expected by us, it is only a minor glancing blow and geomagnetic storming is not expected at this time. Kp values up to 4 are possible with the current conditions.
Saturday, 5 November 2016 - 16:53 UTC
A filament eruption took place this night on the Sun's northern hemisphere.
Sunday, 23 October 2016 - 13:18 UTC
It is fairly clear we are well on our way to solar minimum but October has thus far been an interesting month despite the lack of any significant solar activity.
Wednesday, 12 October 2016 - 18:35 UTC
While we are awaiting the arrival of a small coronal mass ejection (expected to arrive tomorrow) our automated alert system notified us of another very interesting solar feature: we have a coronal hole on the Sun and it faces Earth today.
Monday, 10 October 2016 - 19:27 UTC
A faint asymmatric full halo coronal mass ejection became visible yesterday on SOHO LASCO coronagraph imagery. There wasn't a very clear source to be found on SDO imagery but a small filament eruption is the primary suspect.
Monday, 26 September 2016 - 10:14 UTC
She's back! That massive coronal hole system that faced us four weeks ago is back and it survived its trip around the farside of our star. This truly gigantic coronal hole managed to cause geomagnetic storming conditions on five consecutive days during the first five days of this month. Fantastic auroral displays were reported from all around the world.
Tuesday, 6 September 2016 - 18:56 UTC
It has been five crazy first days of this month as every single day thus far provided us with at least one 3-hour period where we reached geomagnetic storm conditions according to the NOAA SWPC. The first three days of this month even treated us with moderate G2 geomagnetic storming conditions. This was all thanks to a massive coronal hole system that has now started to rotate out of Earth's view. The solar wind stream has been diminishing in strength during the past hours and today will likely be the first day of this month that we will not reach the minor G1 geomagnetic storm level.
Saturday, 27 August 2016 - 20:51 UTC
Four nights ago we saw an unexpected G1 geomagnetic storm that produced aurora which was visible even from middle latitude locations like England and the Netherlands. This was the work of a coronal hole solar wind stream that tipped the north-south direction of the IMF (Bz) southward during multiple hours.
|Predicted Kp max||5|
|M-class solar flare||1%|
|X-class solar flare||1%|
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|Last geomagnetic storm:||2016/11/25||Kp6 (G2)|
|Number of spotless days in 2016:||27|
|Last spotless day:||2016/11/22|