Coronal hole faces Earth, G1 watch issued
Tuesday, 29 May 2018 19:06 UTC
Sunspot region 2712 didn't manage to develop further since we wrote about it yesterday and has been pretty quiet today with only a couple of B-class solar flares. However, sunspot region 2712 is not the center of our attention today. Indeed, a coronal hole takes the spotlight today. A southern hemisphere coronal hole close to the solar equator is facing our planet today and sending an enhanced solar wind stream towards our planet.
This coronal hole was also facing our planet during the beginning of this month. When the stream arrived on 5 May, it pushed the total strength of the interplanetary magnetic field to a maximum of about 16nT and the solar wind speed topped at about 700km/s. The solar wind stream caused minor G1 geomagnetic storm conditions which stands for a Kp=5.
Based on STEREO Ahead data and the general shape and location of this coronal hole, we expect very similar solar wind/interplanetary magnetic field stats this time around. The high speed solar wind stream is expected to arrive in about 2 to 3 days of now which would be somewhere this Friday, 1 June. We think minor G1 geomagnetic storm conditions are possible on that date and also the NOAA SWPC has now issued a G1 storm watch for that date.
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
M9.0 solar flare with earth-directed CME
X2.2 solar flare, SDO outage
Major far side eruption, S1 radiation storm
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 | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/24 | M1.0 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 110.7 -41.8 |
| Last 30 days | 116.5 -41.7 |