Friday, 24 March 2017 - 20:48 UTC
The coronal hole solar wind stream is now starting to wane and the auroral oval has retreated back to higher latitudes. Does that mean we are in for a long quiet period? Fortunately not as we have yet another coronal hole facing our planet today!
Tuesday, 21 March 2017 - 23:39 UTC
We reached the minor G1 geomagnetic storm threshold today thanks to the arrival of the anticipated coronal hole solar wind stream. The solar wind speed fluctuates around 600km/s and the direction of the IMF (Bz) is variable but does occasionally tip southward down to -10nT. These stats are very decent so a minor G1 geomagnetic storm watch remains in effect for the remainder of this day and tomorrow, 22 March 2017. There is however more to report so keep on reading!
Saturday, 18 March 2017 - 17:03 UTC
Solar activity remains very low today (A-class only!) as there are no sunspot regions on the earth-facing disk at the moment. This is already the 13th consecutive day without any numbered sunspot regions on the earth-facing disk and its a sight we will have to get used to as we are trending towards solar minimum. Okay, we now know that we shouldn't expect any solar flares any time soon so... what do we exactly have to look out for? Yes! Coronal holes!
Tuesday, 7 March 2017 - 13:15 UTC
Blast from the past! Do you remember these solar flares? It is today exactly five years ago that sunspot region 11429 erupted with a X5.4 solar flare. This spectacular blast was closely followed by an X1.3 solar flare from nearby sunspot region 11430.
Thursday, 2 March 2017 - 16:41 UTC
The anticipated coronal hole solar wind stream really packed a punch and gave us moderate G2 geomagnetic storming conditions yesterday. The solar wind stream turned out to be stronger than anticipated as only minor G1 geomagnetic storm conditions were expected! The north-south direction of the IMF (Bz) dropped down as low as -17nT yesterday which is very respectable for a CIR ahead of the coronal hole solar wind stream.
Saturday, 25 February 2017 - 22:04 UTC
Solar activity is very low today and expected to remain so in the foreseeable future as no sunspot regions on the earth-facing side of the solar disk are complex enough to produce C, M or X-class solar flares. Sunspot region 2638 did gave us a few C-class solar flares during the past few days but it is not a sunspot region to get really excited about. That means we have to shift our attention (like we've been doing for quite some time now) to another solar feature that we've all become very familiar with: coronal holes. Today we have such a coronal hole facing our planet and it is now sending an enhanced solar wind stream towards our planet that is expected to arrive within the next 48 to 72 hours.
Sunday, 12 February 2017 - 19:46 UTC
Space weather has been very quiet the past few days. The solar wind conditions at Earth are at ambient levels and the geomagnetic activity at our planet is not expected to surpass Kp2 until the next coronal hole solar wind stream arrives. On the Sun we only have one sunspot region on the earth-facing side of the solar disk (sunspot region 2635) but it is not complex enough to produce C, M or X-class solar flares. There is only one interesting solar feature worth discussing at the moment and that is an earth-facing coronal hole.
Sunday, 29 January 2017 - 12:24 UTC
Solar activity hit low levels yesterday (thanks to a C-class solar flare) but we will likely drop down to very low solar activity today as there are no sunspot regions on the earth-facing solar disk which look like they are complex enough to produce C, M or X-class solar flares. That doesn't mean we are heading into a period of quiet space weather as a large coronal hole is facing our planet today and sending an enhanced solar wind stream towards our planet.
Saturday, 21 January 2017 - 13:25 UTC
Our Sun is showing signs of life this morning as it produced two strong C-class solar flares.
Sunday, 15 January 2017 - 21:41 UTC
The northern hemisphere polar coronal hole with an extension all the way down to the solar equator is back and sending an enhanced stream of solar wind towards our planet.
|Predicted Kp max||5|
|M-class solar flare||1%|
|X-class solar flare||1%|
|C3.2 C1.6 B4.1 C5.1|
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|Last geomagnetic storm:||2017/03/22||Kp5 (G1)|
|Number of spotless days in 2017:||27|
|Last spotless day:||2017/03/20|