G2 storm, Sunspot region 2651

Thursday, 20 April 2017 - 09:31 UTC

G2 storm, Sunspot region 2651

Moderate G2 geomagnetic storm conditions were observed this night due to persisting coronal hole solar wind stream influences. Conditions remain favorable for more geomagnetic storming likely up to the minor G1 storm level in the coming hours.

The header image was made this night by Scott Rock Photography from Onatario, Canada. Well done!

Sunspot region 2651

Old sunspot region 2644 which has received sunspot number 2651 has been fairly quiet since it produced two eruptive C-class solar flares on 18 April but don't let the silence deceive you. We now finally have a good view of this sunspot region as it continues to rotate more and more into an earth-facing position. While it is not a terribly complex region, it does have a small but compact delta sunspot in the northernmost sunspot cluster. This means the region is not a one-trick pony and more flaring activity should not be excluded. There will be a minor chance for an M-class event as long as this magnetic delta structure persists. Well worth keeping an eye on this sunspot region as it faces Earth in the coming days!

SDO/HMI Intensitygram and Magnetogram overlay of AR2651. Delta indicated with a circle. Images available on our SDO page.

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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 20% 15%
Middle latitude 5% 1%
Predicted Kp max 3
Solar activity
M-class solar flare 1%
X-class solar flare 1%
Moon phase
Waning Crescent

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2017/12/05Kp5 (G1)
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Current stretch spotless days:2

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