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Reports
Solar activity
Auroral activity
CME effects continue: fireworks & aurora tonight?

Coronal mass ejection effects continue here at Earth and the IMF is slowly gaining strength.

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Coronal mass ejection arrival

It took a little while but the anticipated coronal mass ejection has finally arrived. It hit ACE at 00:03 UTC which is less than an hour from our predicted arrival time.

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Space weather facts

Last X-flare2025/12/08X1.1
Last M-flare2025/12/08M1.8
Last geomagnetic storm2025/12/04Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 202591.8 -22.8
December 2025162.7 +70.9
Last 30 days108 +13.3

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DstG
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*since 1994

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