Sunday, 24 September 2017 - 14:09 UTC
A large southern extension of the northern hemisphere polar coronal hole is facing Earth today.
An enhanced solar wind stream flowing from this coronal hole could arrive in about 3 days from now and minor G1 geomagnetic storm conditions are likely on Wednesday, 27 September.
Bad news! Old sunspot region 2673 has returned on the Earth-facing solar disk. It decayed heavily on the far side and it is now a simple Alpha sunspot region with only one sunspot surrounded by large ammounts of faculae. This sunspot region is unlikely to produce strong solar flares. It will likely recieve sunspot number 2681 later today or tomorrow.
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|Predicted Kp max||4|
|M-class solar flare||1%|
|X-class solar flare||1%|
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|Last geomagnetic storm:||2017/12/05||Kp5 (G1)|
|Number of spotless days in 2017:||94|
|Last spotless day:||2017/12/09|