Coronal hole faces Earth
Saturday, 21 October 2017 08:57 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 to moderate G1/G2 geomagnetic storm conditions are likely on Tuesday, 24 October.
This coronal hole is a familiar solar feature that has been around for months now. The solar wind stream caused moderate G2 geomagnetic storm conditions on 27 September and strong G3 geomagnetic storm conditions on 28 September.
The coronal hole did shrink in size compared to the previous rotation so we do not expect the same kind of storm conditions this time around but we should still see a decent solar wind enhancement at our planet when the solar wind stream arrives.
Thank you for reading this article! Did you have any trouble with the technical terms used in this article? Our help section is the place to be where you can find in-depth articles, a FAQ and a list with common abbreviations. Still puzzled? Just post on our forum where we will help you the best we can!
Latest news
Lot's of sunspots! Big chance for major flare activity?
X1.1 solar flare with earth-directed CME
Sunspot region 3615, G1 watch
Latest forum messages
Support SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
Space weather facts
| Last X-flare | 2024/03/28 | X1.1 |
| Last M-flare | 2024/04/25 | M1.0 |
| Last geomagnetic storm | 2024/04/19 | Kp7 (G3) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2024 | 104.9 -19.8 |
| Last 30 days | 133.9 +26.6 |