Coronal holes faces Earth, AR2673 returns

Sunday, 24 September 2017 - 14:09 UTC

Coronal holes faces Earth, AR2673 returns

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.

Sunspot region 2673 returns

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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Current data suggest that it is not possible to see aurora now at middle latitudes

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Today's space weather

Auroral activity Minor Severe
High latitude 30% 25%
Middle latitude 5% 1%
Predicted Kp max 4
Solar activity
M-class solar flare 1%
X-class solar flare 1%
B1.4 B3.4
Moon phase
New Moon

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/09/09M1.1
Last geomagnetic storm:2017/10/15Kp5 (G1)
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Current stretch spotless days:5

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