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Moderate G2 geomagnetic storm

The anticipated coronal hole solar wind stream has arrived at our planet and packed quite a punch. Active geomagnetic conditions (Kp4) were expected but the solar wind conditions were so impressive it was enough for us to reach the moderate G2 geomagnetic storm threshold which equals a Kp of 6 and some impressive auroral displays around the globe.

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/09/28Kp5 (G1)
Number of spotless days in 2019:211
Current stretch spotless days:13

This day in history*

Solar flares
12013M1.8
22013M1.3
32015M1.1
42002M1.0
52013C9.5
ApG
1200344G2
2199931G1
3201725G1
4200218
5201317
*since 1994

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