CME impacts Earth, sparking G3 – Strong geomagnetic storm

CME impacts Earth, sparking G3 – Strong geomagnetic storm

A coronal mass ejection (CME) produced by a filament eruption around 10:00 UTC on May 9, 2021, has reached Earth at 06:43 UTC on May 12. G3 – Moderate geomagnetic storm levels were observed at 12:59 UTC. The CME arrived at the DSCOVR spacecraft at 05:47 UTC. Solar…

G2 – Moderate geomagnetic storm watch in effect for April 25

G2 – Moderate geomagnetic storm watch in effect for April 25

A partial halo Coronal Mass Ejection (CME) produced by the C3.8 solar flare from Region 2816 at 04:35 UTC on April 22 is heading toward Earth and is expected to arrive on April 25. As a result, a G2 – Moderate geomagnetic storming is expected. This CME has been…

Negative polarity CH HSS sparks G2 – Moderate geomagnetic storm

Negative polarity CH HSS sparks G2 – Moderate geomagnetic storm

Earth is under the influence of negative polarity coronal hole high speed stream (CH HSS) over the past 24 hours, sparking G2 geomagnetic storming. The source is a polar connected coronal hole located in the Sun's southern hemisphere. Geomagnetic K-index of 5…

Negative polarity CH HSS sparks G2 – Moderate geomagnetic storm

Negative polarity CH HSS sparks G2 – Moderate geomagnetic storm

Earth is under the influence of a negative polarity coronal hole high speed stream (CH HSS) on March 1, 2021, sparking G1 – Minor and G2 – Moderate geomagnetic storming. Solar wind speed started increasing late February 28, from 369 km/s at 22:00 UTC to 521 km/s at…

Slow-moving transient sparks vivid auroras around the Arctic circle

Slow-moving transient sparks vivid auroras around the Arctic circle

Solar wind parameters reflected the arrival of a slow-moving transient at approximately 08:23 UTC on January 11, 2021. At this time, density, temperature, and wind speed increased, sparking vivid auroras around the Arctic circle. The cause of the shock wave might…

G1 – Minor geomagnetic storm watch in effect for December 23 and 24

G1 – Minor geomagnetic storm watch in effect for December 23 and 24

A series of positive polarity, polar connected, coronal hole high speed streams (CH HSS) are expected to affect our planet in the days ahead, resulting in G1 – Minor geomagnetic storming. The area of impact is primarily poleward of 60 degrees Geomagnetic Latitude….

CH HSS sparks G1 – Minor geomagnetic storm, G2 – Moderate warning

CH HSS sparks G1 – Minor geomagnetic storm, G2 – Moderate warning

A recurrent, positive polarity coronal hole high speed stream (CH HSS) is affecting our planet since September 23, sparking active to G1 – Minor geomagnetic storm conditions. A G2 – Moderate geomagnetic storm warning was issued at 08:07 UTC today. In 24 hours to…