Coronal hole faces Earth

Saturday, 17 December 2016 - 16:13 UTC

Coronal hole faces Earth

Its starting to become a familiar topic here: coronal holes! The northern hemisphere polar coronal hole is back and sending an enhanced stream of solar wind towards our planet.

Compared to the last rotation, we see that the coronal hole did not change all that much but the equatorial part and the part that is just south of the equator that is facing Earth now does look a little bit bigger than it was during the last rotation. You could actually say that these are two seperate coronal holes as the two areas are hardly connected anymore but for now we will refer to this solar feature as one coronal hole.

We should start to feel the effects of this coronal hole in about 24 to 48 hours from now and the stream could increase in strength in about 3 days as the equatorial part that should be more geoeffective faces us today. Storming up to the minor G1 geomagnetic storm level is possible next week once the solar wind stream arrives.

Never want to miss one of our news articles again? Subscribe to our mailing list! Always want to be up to date of the latest space weather events? Our Twitter account is the place to be for the latest space weather alerts or if you don't have Twitter you can sign up for the push alerts! Unsure what all of this space weather tech talk means? Our help section is the place to be where you can find in-depth articles, a FAQ and a list with common abbreviations. Do you still have a burning question after digging trough our help section? You are more than welcome to post on our forum where we will personally help you the best we can!

Current data suggest that it is not possible to see aurora now at middle latitudes

Latest news


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!


Latest alerts

Get instant alerts!

Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2018/06/18Kp5 (G1)
Number of spotless days in 2018:85
Last spotless day:2018/06/11

This day in history*

Solar flares
*since 1994

Social networks