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.
Sunday, 7 August 2016 - 15:51 UTC
Solar activity increased surprisingly to moderate levels today thanks to an M1.3 (R1-minor) solar flare that took place at the NE limb.
Sunday, 31 July 2016 - 11:52 UTC
A large trans-equatorial extension of the northern hemisphere polar coronal hole is now facing Earth.
Thursday, 28 July 2016 - 16:18 UTC
Welcome DSCOVR! Yesterday at 16:00 UTC, the NOAA SWPC switched from the Advanced Composition Explorer (ACE) to the Deep Space Climate Observatory (DSCOVR) as the primary source of real time solar wind data. Congratulations to the NOAA SWPC for the successful switch over to their first deep space weather satellite.
Saturday, 23 July 2016 - 17:30 UTC
A series of strong M-class solar flares took place this morning. Three of them to be precise. All of these solar flares peaked at the M5 class (R2-moderate) or higher.
Thursday, 21 July 2016 - 17:18 UTC
More than three months. That's how long it took for the Sun to boost solar activity up to moderate levels again. It was sunspot region 2567 which produced two M-class solar flares early this night. First an M1.2 (R1-minor) solar flare at 00:46 UTC which was quickly followed by an M1.0 (R1-minor) solar flare at 01:49 UTC. These are the first M-class solar flares since the M6.7 solar flare that took place on 18 April.
Wednesday, 20 July 2016 - 17:29 UTC
A shock in the solar wind was observed by ACE, yesterday around 23:00 UTC. This is likely the expected coronal mass ejection of a C1 solar flare that took place on 17 July.
Monday, 18 July 2016 - 18:51 UTC
A long duration C1 solar flare from sunspot regions 2565/2567 peaked yesterday around 08:00 UTC. It was responsible for a faint coronal mass ejection that likely has an earth-directed component.
|Predicted Kp max||4|
|M-class solar flare||5%|
|X-class solar flare||1%|
|B4.1 B3.6 C1.0|
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|Last geomagnetic storm:||2016/09/25||Kp5 (G1)|
|Number of spotless days in 2016:||21|
|Last spotless day:||2016/08/04|