Coronal hole faces Earth

Sunday, 11 March 2018 12:53 UTC

Coronal hole faces Earth

A thin east-west aligned northern hemisphere coronal hole is facing our planet today.

A solar wind stream from this coronal hole is expected to arrive on Wednesday, 14 March. Active geomagnetic conditions (Kp4) are likely with a minor chance that we are going to get minor G1 geomagnetic storm conditions which is a Kp of 5. We are now near the spring equinox which means its slightly easier for geomagnetic disturbances to develop hence the possible G1 watch.

Like with any coronal hole solar wind stream, the strongest effects are likely to occur when the Co-rotating Interaction Region (CIR) ahead of the solar wind stream itself arrives which will likely be on Wednesday. The solar wind stream itself which is the fast but not very dense solar wind could persist for days considering the shape of this coronal hole. For more information about coronal holes we invite you to read our help article about this subject.

Any mentioned solar flare in this article has a scaling factor applied by the Space Weather Prediction Center (SWPC), the reported solar flares are 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.

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! Never want to miss out on a space weather event or one of our news articles again? Subscribe to our mailing list, follow us on Twitter and Facebook and download the SpaceWeatherLive app for Android and iOS!

Latest news

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!

100%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/11/06X2.39
Last M-flare2024/11/10M4.2
Last geomagnetic storm2024/11/09Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024187.3 +20.9
Last 30 days162.6 +13.7

This day in history*

Solar flares
12004X3.67
22013X1.62
32024M4.2
42002M3.47
52001M3.33
DstG
12004-263G4
21991-144
32000-95G2
41998-93
51975-67G2
*since 1994

Social networks